Vulnerabilities > CVE-2011-1528 - Improper Input Validation vulnerability in MIT Kerberos 5

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update krb5-5303.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(75885);
  script_version("1.9");
  script_cvs_date("Date: 2019/10/25 13:36:42");

  script_cve_id("CVE-2011-1526", "CVE-2011-1528", "CVE-2011-1529");

  script_name(english:"openSUSE Security Update : krb5 (openSUSE-SU-2011:1169-1)");
  script_summary(english:"Check for the krb5-5303 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The following issues have been fixed :

  - CVE-2011-1528: In releases krb5-1.8 and later, the KDC
    can crash due to an assertion failure.

  - CVE-2011-1529: In releases krb5-1.8 and later, the KDC
    can crash due to a NULL pointer dereference.

Both bugs could be triggered by unauthenticated remote attackers.
Additionally CVE-2011-1526 was fixed that allowed authenticated users
to access files via krb5 ftpd they should not have access to."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=719393"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2011-10/msg00025.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-appl-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-appl-clients-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-appl-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-appl-servers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-appl-servers-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-client-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-kdb-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-kdb-ldap-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-preauth-pkinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-preauth-pkinit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-server-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.4");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE11\.4)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.4", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE11.4", reference:"krb5-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-appl-clients-1.0-7.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-appl-clients-debuginfo-1.0-7.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-appl-debugsource-1.0-7.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-appl-servers-1.0-7.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-appl-servers-debuginfo-1.0-7.10.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-client-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-client-debuginfo-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-debuginfo-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-debugsource-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-devel-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-plugin-kdb-ldap-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-plugin-kdb-ldap-debuginfo-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-plugin-preauth-pkinit-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-plugin-preauth-pkinit-debuginfo-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-server-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"krb5-server-debuginfo-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", cpu:"x86_64", reference:"krb5-32bit-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", cpu:"x86_64", reference:"krb5-debuginfo-32bit-1.8.3-16.19.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", cpu:"x86_64", reference:"krb5-devel-32bit-1.8.3-16.19.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1233-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(56556);
  script_version("1.13");
  script_cvs_date("Date: 2019/09/19 12:54:27");

  script_cve_id("CVE-2011-1527", "CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"USN", value:"1233-1");

  script_name(english:"Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : krb5 vulnerabilities (USN-1233-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Nalin Dahyabhai, Andrej Ota and Kyle Moffett discovered a NULL pointer
dereference in the KDC LDAP backend. An unauthenticated remote
attacker could use this to cause a denial of service. This issue
affected Ubuntu 11.10. (CVE-2011-1527)

Mark Deneen discovered that an assert() could be triggered in the
krb5_ldap_lockout_audit() function in the KDC LDAP backend and the
krb5_db2_lockout_audit() function in the KDC DB2 backend. An
unauthenticated remote attacker could use this to cause a denial of
service. (CVE-2011-1528)

It was discovered that a NULL pointer dereference could occur in the
lookup_lockout_policy() function in the KDC LDAP and DB2 backends. An
unauthenticated remote attacker could use this to cause a denial of
service. (CVE-2011-1529).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/1233-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected krb5-kdc and / or krb5-kdc-ldap packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-kdc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-kdc-ldap");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/10/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/10/19");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(10\.04|10\.10|11\.04|11\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 10.10 / 11.04 / 11.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"10.04", pkgname:"krb5-kdc", pkgver:"1.8.1+dfsg-2ubuntu0.10")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-kdc-ldap", pkgver:"1.8.1+dfsg-2ubuntu0.10")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-kdc", pkgver:"1.8.1+dfsg-5ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-kdc-ldap", pkgver:"1.8.1+dfsg-5ubuntu0.8")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"krb5-kdc", pkgver:"1.8.3+dfsg-5ubuntu2.2")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"krb5-kdc-ldap", pkgver:"1.8.3+dfsg-5ubuntu2.2")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"krb5-kdc", pkgver:"1.9.1+dfsg-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"krb5-kdc-ldap", pkgver:"1.9.1+dfsg-1ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-kdc / krb5-kdc-ldap");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2011-14673.
#

include("compat.inc");

if (description)
{
  script_id(56852);
  script_version("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:34");

  script_cve_id("CVE-2011-1527", "CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"FEDORA", value:"2011-14673");

  script_name(english:"Fedora 15 : krb5-1.9.1-14.fc15 (2011-14673)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update applies the upstream patch to fix a NULL pointer
dereference wi= th the LDAP kdb backend (CVE-2011-1527, #744125), an
assertion failure with= multiple kdb backends (CVE-2011-1528), and a
NULL pointer dereference with= multiple kdb backends (CVE-2011-1529).
(#737711)

It also rolls up a number of mostly-minor fixes, some of which were
backpor= ted from upstream to the Fedora 16 branch. The main
user-visible change is= a fix for cross-realm authentication in the
client libraries.
----------------------------------------------------------------------
-----=

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=737711"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2011-November/069354.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?c52b1476"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:15");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/11/16");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^15([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 15.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC15", reference:"krb5-1.9.1-14.fc15")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5");
}

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2011:159. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(61933);
  script_version("1.12");
  script_cvs_date("Date: 2019/08/02 13:32:54");

  script_cve_id("CVE-2011-1527", "CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"MDVSA", value:"2011:159");

  script_name(english:"Mandriva Linux Security Advisory : krb5 (MDVSA-2011:159)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities has been found and corrected in krb5 :

The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT
Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is
used, allows remote attackers to cause a denial of service (NULL
pointer dereference and daemon crash) via a kinit operation with
incorrect string case for the realm, related to the
is_principal_in_realm, krb5_set_error_message,
krb5_ldap_get_principal, and process_as_req functions (CVE-2011-1527).

The krb5_ldap_lockout_audit function in the Key Distribution Center
(KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through
1.9.1, when the LDAP back end is used, allows remote attackers to
cause a denial of service (assertion failure and daemon exit) via
unspecified vectors, related to the locked_check_p function
(CVE-2011-1528).

The lookup_lockout_policy function in the Key Distribution Center
(KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through
1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows
remote attackers to cause a denial of service (NULL pointer
dereference and daemon crash) via vectors that trigger certain
process_as_req errors (CVE-2011-1529).

The updated packages have been patched to correct these issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-pkinit-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-server-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2011");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/09/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK2011", reference:"krb5-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-pkinit-openssl-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-server-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-server-ldap-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-workstation-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"x86_64", reference:"lib64krb53-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"x86_64", reference:"lib64krb53-devel-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"i386", reference:"libkrb53-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"i386", reference:"libkrb53-devel-1.9.1-1.1-mdv2011.0", yank:"mdv")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2011-15.
#

include("compat.inc");

if (description)
{
  script_id(69574);
  script_version("1.5");
  script_cvs_date("Date: 2018/04/18 15:09:34");

  script_cve_id("CVE-2011-1527");
  script_xref(name:"ALAS", value:"2011-15");
  script_xref(name:"RHSA", value:"2011:1379");

  script_name(english:"Amazon Linux AMI : krb5 (ALAS-2011-15)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple NULL pointer dereference and assertion failure flaws were
found in the MIT Kerberos KDC when it was configured to use an LDAP
(Lightweight Directory Access Protocol) or Berkeley Database (Berkeley
DB) back end. A remote attacker could use these flaws to crash the
KDC. (CVE-2011-1527 , CVE-2011-1528 , CVE-2011-1529)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2011-15.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update krb5' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:krb5-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:krb5-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:krb5-pkinit-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:krb5-server-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"Amazon Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", reference:"krb5-debuginfo-1.9-9.19.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"krb5-devel-1.9-9.19.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"krb5-libs-1.9-9.19.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"krb5-pkinit-openssl-1.9-9.19.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"krb5-server-1.9-9.19.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"krb5-server-ldap-1.9-9.19.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"krb5-workstation-1.9-9.19.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-debuginfo / krb5-devel / krb5-libs / krb5-pkinit-openssl / etc");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2379. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(57519);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"DSA", value:"2379");

  script_name(english:"Debian DSA-2379-1 : krb5 - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that the Key Distribution Center (KDC) in Kerberos 5
crashes when processing certain crafted requests :

  - CVE-2011-1528
    When the LDAP backend is used, remote users can trigger
    a KDC daemon crash and denial of service.

  - CVE-2011-1529
    When the LDAP or Berkeley DB backend is used, remote
    users can trigger a NULL pointer dereference in the KDC
    daemon and a denial of service.

The oldstable distribution (lenny) is not affected by these problems."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-1528"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2011-1529"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/krb5"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2012/dsa-2379"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the krb5 packages.

For the stable distribution (squeeze), these problems have been fixed
in version 1.8.3+dfsg-4squeeze5."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"krb5-admin-server", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"krb5-doc", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"krb5-kdc", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"krb5-kdc-ldap", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"krb5-multidev", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"krb5-pkinit", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"krb5-user", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"libkrb5-dev", reference:"1.8.3+dfsg-4squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"libkrb53", reference:"1.8.3+dfsg-4squeeze5")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2011:160. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(56599);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:54");

  script_cve_id("CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"MDVSA", value:"2011:160");

  script_name(english:"Mandriva Linux Security Advisory : krb5 (MDVSA-2011:160)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities has been found and corrected in krb5 :

The krb5_ldap_lockout_audit function in the Key Distribution Center
(KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through
1.9.1, when the LDAP back end is used, allows remote attackers to
cause a denial of service (assertion failure and daemon exit) via
unspecified vectors, related to the locked_check_p function
(CVE-2011-1528).

The lookup_lockout_policy function in the Key Distribution Center
(KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through
1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows
remote attackers to cause a denial of service (NULL pointer
dereference and daemon crash) via vectors that trigger certain
process_as_req errors (CVE-2011-1529).

The updated packages have been patched to correct these issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-pkinit-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-server-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/10/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK2010.1", reference:"krb5-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"krb5-pkinit-openssl-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"krb5-server-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"krb5-server-ldap-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"krb5-workstation-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"x86_64", reference:"lib64krb53-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"x86_64", reference:"lib64krb53-devel-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"i386", reference:"libkrb53-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"i386", reference:"libkrb53-devel-1.8.1-5.6mdv2010.2", yank:"mdv")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update krb5-5303.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(75563);
  script_version("1.9");
  script_cvs_date("Date: 2019/10/25 13:36:41");

  script_cve_id("CVE-2011-1526", "CVE-2011-1528", "CVE-2011-1529");

  script_name(english:"openSUSE Security Update : krb5 (openSUSE-SU-2011:1169-1)");
  script_summary(english:"Check for the krb5-5303 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The following issues have been fixed :

  - CVE-2011-1528: In releases krb5-1.8 and later, the KDC
    can crash due to an assertion failure. 

  - CVE-2011-1529: In releases krb5-1.8 and later, the KDC
    can crash due to a NULL pointer dereference. 

Both bugs could be triggered by unauthenticated remote attackers.
Additionally CVE-2011-1526 was fixed that allowed authenticated users
to access files via krb5 ftpd they should not have access to."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=719393"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2011-10/msg00025.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-appl-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-appl-servers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-kdb-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-preauth-pkinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE11\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.3", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE11.3", reference:"krb5-1.8.1-5.11.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"krb5-appl-clients-1.0-4.3.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"krb5-appl-servers-1.0-4.3.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"krb5-client-1.8.1-5.11.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"krb5-devel-1.8.1-5.11.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"krb5-plugin-kdb-ldap-1.8.1-5.11.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"krb5-plugin-preauth-pkinit-1.8.1-5.11.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", reference:"krb5-server-1.8.1-5.11.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", cpu:"x86_64", reference:"krb5-32bit-1.8.1-5.11.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", cpu:"x86_64", reference:"krb5-devel-32bit-1.8.1-5.11.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2011-14650.
#

include("compat.inc");

if (description)
{
  script_id(56851);
  script_version("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:34");

  script_cve_id("CVE-2011-1527", "CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"FEDORA", value:"2011-14650");

  script_name(english:"Fedora 14 : krb5-1.8.4-3.fc14 (2011-14650)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update applies the upstream patch to fix a NULL pointer
dereference wi= th the LDAP kdb backend (CVE-2011-1527), an assertion
failure with multiple= kdb backends (CVE-2011-1528), and a NULL
pointer dereference with multiple= kdb backends (CVE-2011-1529).
(#737711)

----------------------------------------------------------------------
-----=

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=737711"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2011-November/069381.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?cceea7b8"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:14");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/11/16");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^14([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 14.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC14", reference:"krb5-1.8.4-3.fc14")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the Oracle Third Party software advisories.
#
include("compat.inc");

if (description)
{
  script_id(80650);
  script_version("1.2");
  script_cvs_date("Date: 2018/11/15 20:50:24");

  script_cve_id("CVE-2011-1528", "CVE-2011-1529", "CVE-2011-4151");

  script_name(english:"Oracle Solaris Third-Party Patch Update : kerberos (multiple_input_validation_vulnerabilities_in)");
  script_summary(english:"Check for the 'entire' version.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Solaris system is missing a security patch for third-party
software."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote Solaris system is missing necessary patches to address
security updates :

  - The krb5_ldap_lockout_audit function in the Key
    Distribution Center (KDC) in MIT Kerberos 5 (aka krb5)
    1.8 through 1.8.4 and 1.9 through 1.9.1, when the LDAP
    back end is used, allows remote attackers to cause a
    denial of service (assertion failure and daemon exit)
    via unspecified vectors, related to the locked_check_p
    function. NOTE: the Berkeley DB vector is covered by
    CVE-2011-4151. (CVE-2011-1528)

  - The lookup_lockout_policy function in the Key
    Distribution Center (KDC) in MIT Kerberos 5 (aka krb5)
    1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2
    (aka Berkeley DB) or LDAP back end is used, allows
    remote attackers to cause a denial of service (NULL
    pointer dereference and daemon crash) via vectors that
    trigger certain process_as_req errors. (CVE-2011-1529)

  - The krb5_db2_lockout_audit function in the Key
    Distribution Center (KDC) in MIT Kerberos 5 (aka krb5)
    1.8 through 1.8.4, when the db2 (aka Berkeley DB) back
    end is used, allows remote attackers to cause a denial
    of service (assertion failure and daemon exit) via
    unspecified vectors, a different vulnerability than
    CVE-2011-1528. (CVE-2011-4151)"
  );
  # https://www.oracle.com/technetwork/topics/security/thirdparty-patch-map-1482893.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4a913f44"
  );
  # https://blogs.oracle.com/sunsecurity/multiple-input-validation-vulnerabilities-in-kerberos
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?103a3cab"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade to Solaris 11.1.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:solaris:11.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:solaris:kerberos");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/07/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/01/19");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");
  script_family(english:"Solaris Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Solaris11/release", "Host/Solaris11/pkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("solaris.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Solaris11/release");
if (isnull(release)) audit(AUDIT_OS_NOT, "Solaris11");
pkg_list = solaris_pkg_list_leaves();
if (isnull (pkg_list)) audit(AUDIT_PACKAGE_LIST_MISSING, "Solaris pkg-list packages");

if (empty_or_null(egrep(string:pkg_list, pattern:"^kerberos-"))) audit(AUDIT_PACKAGE_NOT_INSTALLED, "kerberos");

flag = 0;

if (solaris_check_release(release:"0.5.11-0.175.1.0.0.0.0", sru:"SRU 0") > 0) flag++;

if (flag)
{
  error_extra = 'Affected package : kerberos\n' + solaris_get_report2();
  error_extra = ereg_replace(pattern:"version", replace:"OS version", string:error_extra);
  if (report_verbosity > 0) security_hole(port:0, extra:error_extra);
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_PACKAGE_NOT_AFFECTED, "kerberos");

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2011:1379 and 
# Oracle Linux Security Advisory ELSA-2011-1379 respectively.
#

include("compat.inc");

if (description)
{
  script_id(68372);
  script_version("1.8");
  script_cvs_date("Date: 2019/10/25 13:36:09");

  script_cve_id("CVE-2011-1527", "CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"RHSA", value:"2011:1379");

  script_name(english:"Oracle Linux 6 : krb5 (ELSA-2011-1379)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2011:1379 :

Updated krb5 packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

Kerberos is a network authentication system which allows clients and
servers to authenticate to each other using symmetric encryption and a
trusted third-party, the Key Distribution Center (KDC).

Multiple NULL pointer dereference and assertion failure flaws were
found in the MIT Kerberos KDC when it was configured to use an LDAP
(Lightweight Directory Access Protocol) or Berkeley Database (Berkeley
DB) back end. A remote attacker could use these flaws to crash the
KDC. (CVE-2011-1527, CVE-2011-1528, CVE-2011-1529)

Red Hat would like to thank the MIT Kerberos project for reporting the
CVE-2011-1527 issue. Upstream acknowledges Andrej Ota as the original
reporter of CVE-2011-1527.

All krb5 users should upgrade to these updated packages, which contain
a backported patch to correct these issues. After installing the
updated packages, the krb5kdc daemon will be restarted automatically."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2011-October/002410.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-pkinit-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-server-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/10/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 6", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL6", reference:"krb5-devel-1.9-9.el6_1.2")) flag++;
if (rpm_check(release:"EL6", reference:"krb5-libs-1.9-9.el6_1.2")) flag++;
if (rpm_check(release:"EL6", reference:"krb5-pkinit-openssl-1.9-9.el6_1.2")) flag++;
if (rpm_check(release:"EL6", reference:"krb5-server-1.9-9.el6_1.2")) flag++;
if (rpm_check(release:"EL6", reference:"krb5-server-ldap-1.9-9.el6_1.2")) flag++;
if (rpm_check(release:"EL6", reference:"krb5-workstation-1.9-9.el6_1.2")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-devel / krb5-libs / krb5-pkinit-openssl / krb5-server / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201201-13.
#
# The advisory text is Copyright (C) 2001-2016 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(57655);
  script_version("1.13");
  script_cvs_date("Date: 2018/07/11 17:09:26");

  script_cve_id("CVE-2009-3295", "CVE-2009-4212", "CVE-2010-0283", "CVE-2010-0629", "CVE-2010-1320", "CVE-2010-1321", "CVE-2010-1322", "CVE-2010-1323", "CVE-2010-1324", "CVE-2010-4020", "CVE-2010-4021", "CVE-2010-4022", "CVE-2011-0281", "CVE-2011-0282", "CVE-2011-0283", "CVE-2011-0284", "CVE-2011-0285", "CVE-2011-1527", "CVE-2011-1528", "CVE-2011-1529", "CVE-2011-1530", "CVE-2011-4151");
  script_bugtraq_id(37486, 37749, 38260, 39247, 39599, 40235, 43756, 45116, 45117, 45118, 45122, 46265, 46269, 46271, 46272, 46881, 47310, 50273, 50929);
  script_xref(name:"GLSA", value:"201201-13");

  script_name(english:"GLSA-201201-13 : MIT Kerberos 5: Multiple vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201201-13
(MIT Kerberos 5: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in MIT Kerberos 5. Please
      review the CVE identifiers referenced below for details.
  
Impact :

    A remote attacker may be able to execute arbitrary code with the
      privileges of the administration daemon or the Key Distribution Center
      (KDC) daemon, cause a Denial of Service condition, or possibly obtain
      sensitive information. Furthermore, a remote attacker may be able to
      spoof Kerberos authorization, modify KDC responses, forge user data
      messages, forge tokens, forge signatures, impersonate a client, modify
      user-visible prompt text, or have other unspecified impact.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201201-13"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All MIT Kerberos 5 users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=app-crypt/mit-krb5-1.9.2-r1'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(20, 119, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:mit-krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"app-crypt/mit-krb5", unaffected:make_list("ge 1.9.2-r1"), vulnerable:make_list("lt 1.9.2-r1"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "MIT Kerberos 5");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2011:1379. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(56552);
  script_version ("1.23");
  script_cvs_date("Date: 2019/10/25 13:36:16");

  script_cve_id("CVE-2011-1527", "CVE-2011-1528", "CVE-2011-1529");
  script_bugtraq_id(50273);
  script_xref(name:"RHSA", value:"2011:1379");

  script_name(english:"RHEL 6 : krb5 (RHSA-2011:1379)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated krb5 packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

Kerberos is a network authentication system which allows clients and
servers to authenticate to each other using symmetric encryption and a
trusted third-party, the Key Distribution Center (KDC).

Multiple NULL pointer dereference and assertion failure flaws were
found in the MIT Kerberos KDC when it was configured to use an LDAP
(Lightweight Directory Access Protocol) or Berkeley Database (Berkeley
DB) back end. A remote attacker could use these flaws to crash the
KDC. (CVE-2011-1527, CVE-2011-1528, CVE-2011-1529)

Red Hat would like to thank the MIT Kerberos project for reporting the
CVE-2011-1527 issue. Upstream acknowledges Andrej Ota as the original
reporter of CVE-2011-1527.

All krb5 users should upgrade to these updated packages, which contain
a backported patch to correct these issues. After installing the
updated packages, the krb5kdc daemon will be restarted automatically."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2011-1527"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2011-1528"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2011-1529"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2011:1379"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-pkinit-openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-server-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/10/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/10/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/10/19");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2011:1379";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL6", reference:"krb5-debuginfo-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", reference:"krb5-devel-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", reference:"krb5-libs-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"krb5-pkinit-openssl-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"krb5-pkinit-openssl-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"krb5-pkinit-openssl-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"krb5-server-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"krb5-server-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"krb5-server-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", reference:"krb5-server-ldap-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"krb5-workstation-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"krb5-workstation-1.9-9.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"krb5-workstation-1.9-9.el6_1.2")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-debuginfo / krb5-devel / krb5-libs / krb5-pkinit-openssl / etc");
  }
}