Vulnerabilities > CVE-2016-0800 - Information Exposure vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2016:0305. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(89071);
  script_version("2.22");
  script_cvs_date("Date: 2019/10/24 15:35:41");

  script_cve_id("CVE-2015-3197", "CVE-2016-0800");
  script_xref(name:"RHSA", value:"2016:0305");

  script_name(english:"RHEL 6 / 7 : openssl (RHSA-2016:0305) (DROWN)");
  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 openssl packages that fix two security issues are now
available for Red Hat Enterprise Linux 6.6 and 7.1 Extended Update
Support.

Red Hat Product Security has rated this update as having Important
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.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL
v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.

A padding oracle flaw was found in the Secure Sockets Layer version
2.0 (SSLv2) protocol. An attacker can potentially use this flaw to
decrypt RSA-encrypted cipher text from a connection using a newer
SSL/TLS protocol version, allowing them to decrypt such connections.
This cross-protocol attack is publicly referred to as DROWN.
(CVE-2016-0800)

Note: This issue was addressed by disabling the SSLv2 protocol by
default when using the 'SSLv23' connection methods, and removing
support for weak SSLv2 cipher suites. For more information, refer to
the knowledge base article linked to in the References section.

A flaw was found in the way malicious SSLv2 clients could negotiate
SSLv2 ciphers that have been disabled on the server. This could result
in weak SSLv2 ciphers being used for SSLv2 connections, making them
vulnerable to man-in-the-middle attacks. (CVE-2015-3197)

Red Hat would like to thank the OpenSSL project for reporting these
issues. Upstream acknowledges Nimrod Aviram and Sebastian Schinzel as
the original reporters.

All openssl users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. For the
update to take effect, all services linked to the OpenSSL library must
be restarted, or the system rebooted."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/articles/2176731"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://drownattack.com/"
  );
  # https://openssl.org/news/secadv/20160128.txt
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.openssl.org/news/secadv/20160128.txt"
  );
  # https://openssl.org/news/secadv/20160301.txt
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.openssl.org/news/secadv/20160301.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2016:0305"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2016-0800"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2015-3197"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-static");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6.6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/02/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/02");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 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\.6|7\.1)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.6 / 7.1", "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-2016:0305";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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", sp:"6", reference:"openssl-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", reference:"openssl-debuginfo-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", reference:"openssl-devel-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", cpu:"i686", reference:"openssl-perl-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", cpu:"s390x", reference:"openssl-perl-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", cpu:"x86_64", reference:"openssl-perl-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", cpu:"i686", reference:"openssl-static-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", cpu:"s390x", reference:"openssl-static-1.0.1e-30.el6_6.12")) flag++;
  if (rpm_check(release:"RHEL6", sp:"6", cpu:"x86_64", reference:"openssl-static-1.0.1e-30.el6_6.12")) flag++;

  if (rpm_check(release:"RHEL7", sp:"1", cpu:"s390x", reference:"openssl-1.0.1e-42.el7_1.10")) flag++;
  if (rpm_check(release:"RHEL7", sp:"1", cpu:"x86_64", reference:"openssl-1.0.1e-42.el7_1.10")) flag++;
  if (rpm_check(release:"RHEL7", sp:"1", reference:"openssl-debuginfo-1.0.1e-42.el7_1.10")) flag++;
  if (rpm_check(release:"RHEL7", sp:"1", reference:"openssl-devel-1.0.1e-42.el7_1.10")) flag++;
  if (rpm_check(release:"RHEL7", sp:"1", reference:"openssl-libs-1.0.1e-42.el7_1.10")) flag++;
  if (rpm_check(release:"RHEL7", sp:"1", cpu:"s390x", reference:"openssl-perl-1.0.1e-42.el7_1.10")) flag++;
  if (rpm_check(release:"RHEL7", sp:"1", cpu:"x86_64", reference:"openssl-perl-1.0.1e-42.el7_1.10")) flag++;
  if (rpm_check(release:"RHEL7", sp:"1", reference:"openssl-static-1.0.1e-42.el7_1.10")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, "openssl / openssl-debuginfo / openssl-devel / openssl-libs / etc");
  }
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2016-294.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(89651);
  script_version("1.20");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2013-0166", "CVE-2013-0169", "CVE-2014-0076", "CVE-2014-0195", "CVE-2014-0221", "CVE-2014-0224", "CVE-2014-3470", "CVE-2014-3505", "CVE-2014-3506", "CVE-2014-3507", "CVE-2014-3508", "CVE-2014-3510", "CVE-2014-3566", "CVE-2014-3567", "CVE-2014-3568", "CVE-2014-3569", "CVE-2014-3570", "CVE-2014-3571", "CVE-2014-3572", "CVE-2014-8275", "CVE-2015-0204", "CVE-2015-0209", "CVE-2015-0286", "CVE-2015-0287", "CVE-2015-0288", "CVE-2015-0289", "CVE-2015-0293", "CVE-2015-1788", "CVE-2015-1789", "CVE-2015-1790", "CVE-2015-1791", "CVE-2015-1792", "CVE-2015-3195", "CVE-2015-3197", "CVE-2016-0797", "CVE-2016-0799", "CVE-2016-0800");

  script_name(english:"openSUSE Security Update : libopenssl0_9_8 (openSUSE-2016-294) (DROWN) (FREAK) (POODLE)");
  script_summary(english:"Check for the openSUSE-2016-294 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for libopenssl0_9_8 fixes the following issues :

  - CVE-2016-0800 aka the 'DROWN' attack (bsc#968046):
    OpenSSL was vulnerable to a cross-protocol attack that
    could lead to decryption of TLS sessions by using a
    server supporting SSLv2 and EXPORT cipher suites as a
    Bleichenbacher RSA padding oracle.

    This update changes the openssl library to :

  - Disable SSLv2 protocol support by default.

    This can be overridden by setting the environment
    variable 'OPENSSL_ALLOW_SSL2' or by using
    SSL_CTX_clear_options using the SSL_OP_NO_SSLv2 flag.

    Note that various services and clients had already
    disabled SSL protocol 2 by default previously.

  - Disable all weak EXPORT ciphers by default. These can be
    reenabled if required by old legacy software using the
    environment variable 'OPENSSL_ALLOW_EXPORT'.

  - CVE-2016-0797 (bnc#968048): The BN_hex2bn() and
    BN_dec2bn() functions had a bug that could result in an
    attempt to de-reference a NULL pointer leading to
    crashes. This could have security consequences if these
    functions were ever called by user applications with
    large untrusted hex/decimal data. Also, internal usage
    of these functions in OpenSSL uses data from config
    files or application command line arguments. If user
    developed applications generated config file data based
    on untrusted data, then this could have had security
    consequences as well.

  - CVE-2016-0799 (bnc#968374) On many 64 bit systems, the
    internal fmtstr() and doapr_outch() functions could
    miscalculate the length of a string and attempt to
    access out-of-bounds memory locations. These problems
    could have enabled attacks where large amounts of
    untrusted data is passed to the BIO_*printf functions.
    If applications use these functions in this way then
    they could have been vulnerable. OpenSSL itself uses
    these functions when printing out human-readable dumps
    of ASN.1 data. Therefore applications that print this
    data could have been vulnerable if the data is from
    untrusted sources. OpenSSL command line applications
    could also have been vulnerable when they print out
    ASN.1 data, or if untrusted data is passed as command
    line arguments. Libssl is not considered directly
    vulnerable.

  - The package was updated to 0.9.8zh :

  - fixes many security vulnerabilities (not separately
    listed): CVE-2015-3195, CVE-2015-1788, CVE-2015-1789,
    CVE-2015-1790, CVE-2015-1792, CVE-2015-1791,
    CVE-2015-0286, CVE-2015-0287, CVE-2015-0289,
    CVE-2015-0293, CVE-2015-0209, CVE-2015-0288,
    CVE-2014-3571, CVE-2014-3569, CVE-2014-3572,
    CVE-2015-0204, CVE-2014-8275, CVE-2014-3570,
    CVE-2014-3567, CVE-2014-3568, CVE-2014-3566,
    CVE-2014-3510, CVE-2014-3507, CVE-2014-3506,
    CVE-2014-3505, CVE-2014-3508, CVE-2014-0224,
    CVE-2014-0221, CVE-2014-0195, CVE-2014-3470,
    CVE-2014-0076, CVE-2013-0169, CVE-2013-0166

  - avoid running OPENSSL_config twice. This avoids breaking
    engine loading. (boo#952871, boo#967787)

  - fix CVE-2015-3197 (boo#963415)

  - SSLv2 doesn't block disabled ciphers"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=952871"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=963415"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=967787"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=968046"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=968048"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=968374"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libopenssl0_9_8 packages."
  );
  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:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libopenssl0_9_8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libopenssl0_9_8-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libopenssl0_9_8-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libopenssl0_9_8-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libopenssl0_9_8-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/03");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 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 !~ "^(SUSE13\.2|SUSE42\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.2 / 42.1", 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:"SUSE13.2", reference:"libopenssl0_9_8-0.9.8zh-9.3.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"libopenssl0_9_8-debuginfo-0.9.8zh-9.3.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"libopenssl0_9_8-debugsource-0.9.8zh-9.3.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", cpu:"x86_64", reference:"libopenssl0_9_8-32bit-0.9.8zh-9.3.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", cpu:"x86_64", reference:"libopenssl0_9_8-debuginfo-32bit-0.9.8zh-9.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libopenssl0_9_8-0.9.8zh-14.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libopenssl0_9_8-debuginfo-0.9.8zh-14.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libopenssl0_9_8-debugsource-0.9.8zh-14.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", cpu:"x86_64", reference:"libopenssl0_9_8-32bit-0.9.8zh-14.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", cpu:"x86_64", reference:"libopenssl0_9_8-debuginfo-32bit-0.9.8zh-14.1") ) 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, "libopenssl0_9_8 / libopenssl0_9_8-32bit / libopenssl0_9_8-debuginfo / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2016:0302 and 
# Oracle Linux Security Advisory ELSA-2016-0302 respectively.
#

include("compat.inc");

if (description)
{
  script_id(89065);
  script_version("2.18");
  script_cvs_date("Date: 2019/09/27 13:00:36");

  script_cve_id("CVE-2015-3197", "CVE-2016-0797", "CVE-2016-0800");
  script_xref(name:"RHSA", value:"2016:0302");

  script_name(english:"Oracle Linux 5 : openssl (ELSA-2016-0302) (DROWN)");
  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 2016:0302 :

Updated openssl packages that fix three security issues are now
available for Red Hat Enterprise Linux 5

Red Hat Product Security has rated this update as having Important
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.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL
v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.

A padding oracle flaw was found in the Secure Sockets Layer version
2.0 (SSLv2) protocol. An attacker can potentially use this flaw to
decrypt RSA-encrypted cipher text from a connection using a newer
SSL/TLS protocol version, allowing them to decrypt such connections.
This cross-protocol attack is publicly referred to as DROWN.
(CVE-2016-0800)

Note: This issue was addressed by disabling the SSLv2 protocol by
default when using the 'SSLv23' connection methods, and removing
support for weak SSLv2 cipher suites. It is possible to re-enable the
SSLv2 protocol in the 'SSLv23' connection methods by default by
setting the OPENSSL_ENABLE_SSL2 environment variable before starting
an application that needs to have SSLv2 enabled. For more information,
refer to the knowledge base article linked to in the References
section.

A flaw was found in the way malicious SSLv2 clients could negotiate
SSLv2 ciphers that have been disabled on the server. This could result
in weak SSLv2 ciphers being used for SSLv2 connections, making them
vulnerable to man-in-the-middle attacks. (CVE-2015-3197)

An integer overflow flaw, leading to a NULL pointer dereference or a
heap-based memory corruption, was found in the way some BIGNUM
functions of OpenSSL were implemented. Applications that use these
functions with large untrusted input could crash or, potentially,
execute arbitrary code. (CVE-2016-0797)

Red Hat would like to thank the OpenSSL project for reporting these
issues. Upstream acknowledges Nimrod Aviram and Sebastian Schinzel as
the original reporters of CVE-2016-0800 and CVE-2015-3197; and Guido
Vranken as the original reporter of CVE-2016-0797.

All openssl users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. For the
update to take effect, all services linked to the OpenSSL library must
be restarted, or the system rebooted."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2016-March/005833.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected openssl packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openssl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openssl-perl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/02/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/02");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 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:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 5", "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 && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL5", reference:"openssl-0.9.8e-39.0.1.el5_11")) flag++;
if (rpm_check(release:"EL5", reference:"openssl-devel-0.9.8e-39.0.1.el5_11")) flag++;
if (rpm_check(release:"EL5", reference:"openssl-perl-0.9.8e-39.0.1.el5_11")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssl / openssl-devel / openssl-perl");
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(90684);
  script_version("1.18");
  script_cvs_date("Date: 2019/11/19");

  script_cve_id(
    "CVE-2015-3197",
    "CVE-2016-0639",
    "CVE-2016-0642",
    "CVE-2016-0643",
    "CVE-2016-0647",
    "CVE-2016-0648",
    "CVE-2016-0655",
    "CVE-2016-0657",
    "CVE-2016-0659",
    "CVE-2016-0662",
    "CVE-2016-0666",
    "CVE-2016-0667",
    "CVE-2016-0702",
    "CVE-2016-0705",
    "CVE-2016-0797",
    "CVE-2016-0798",
    "CVE-2016-0799",
    "CVE-2016-0800",
    "CVE-2016-2047",
    "CVE-2017-10378"
  );
  script_bugtraq_id(
    81810,
    82237,
    83705,
    83733,
    83754,
    83755,
    83763,
    86418,
    86424,
    86433,
    86445,
    86457,
    86484,
    86486,
    86493,
    86495,
    86506,
    86509,
    101375
  );
  script_xref(name:"CERT", value:"257823");
  script_xref(name:"CERT", value:"583776");

  script_name(english:"MySQL 5.7.x < 5.7.12 Multiple Vulnerabilities (DROWN)");
  script_summary(english:"Checks the version of MySQL server.");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of MySQL running on the remote host is 5.7.x prior to
5.7.12. It is, therefore, affected by multiple vulnerabilities :

  - A cipher algorithm downgrade vulnerability exists in the
    bundled version of OpenSSL due to a flaw that is
    triggered when handling cipher negotiation. A remote
    attacker can exploit this to negotiate SSLv2 ciphers and
    complete SSLv2 handshakes even if all SSLv2 ciphers have
    been disabled on the server. Note that this
    vulnerability only exists if the SSL_OP_NO_SSLv2 option
    has not been disabled. (CVE-2015-3197)

  - An unspecified flaw exists in the Pluggable
    Authentication subcomponent that allows an
    unauthenticated, remote attacker to execute arbitrary
    code. (CVE-2016-0639)

  - An unspecified flaw exists in the Federated subcomponent
    that allows an authenticated, remote attacker to impact
    integrity and availability. (CVE-2016-0642)

  - An unspecified flaw exists in the DML subcomponent that
    allows an authenticated, remote attacker to disclose
    sensitive information. (CVE-2016-0643)

  - An unspecified flaw exists in the FTS subcomponent that
    allows an authenticated, remote attacker to cause a
    denial of service condition. (CVE-2016-0647)

  - An unspecified flaw exists in the PS subcomponent that
    allows an authenticated, remote attacker to cause a
    denial of service condition. (CVE-2016-0647)

  - An unspecified flaw exists in the InnoDB subcomponent
    that allows an authenticated, remote attacker to cause a
    denial of service condition. (CVE-2016-0655)

  - An unspecified flaw exists in the JSON subcomponent that
    allows an authenticated, remote attacker to disclose
    sensitive information. (CVE-2016-0657)

  - An unspecified flaw exists in the Optimizer subcomponent
    that allows an authenticated, remote attacker to cause a
    denial of service condition. (CVE-2016-0659)

  - An unspecified flaw exists in the Partition subcomponent
    that allows an authenticated, remote attacker to cause a
    denial of service condition. (CVE-2016-0662)

  - An unspecified flaw exists in the Security: Privileges
    subcomponent that allows an authenticated, remote
    attacker to cause a denial of service condition.
    (CVE-2016-0666)

  - An unspecified flaw exists in the Locking subcomponent
    that allows an authenticated, remote attacker to cause a
    denial of service condition. (CVE-2016-0667)

  - A key disclosure vulnerability exists in the bundled
    version of OpenSSL due to improper handling of
    cache-bank conflicts on the Intel Sandy-bridge
    microarchitecture. An attacker can exploit this to gain
    access to RSA key information. (CVE-2016-0702)

  - A double-free error exists in the bundled version of
    OpenSSL due to improper validation of user-supplied
    input when parsing malformed DSA private keys. A remote
    attacker can exploit this to corrupt memory, resulting
    in a denial of service condition or the execution of
    arbitrary code. (CVE-2016-0705)

  - A NULL pointer dereference flaw exists in the bundled
    version of OpenSSL in the BN_hex2bn() and BN_dec2bn()
    functions. A remote attacker can exploit this to trigger
    a heap corruption, resulting in the execution of
    arbitrary code. (CVE-2016-0797)

  - A denial of service vulnerability exists in the bundled
    version of OpenSSL due to improper handling of invalid
    usernames. A remote attacker can exploit this, via a
    specially crafted username, to leak 300 bytes of memory
    per connection, exhausting available memory resources.
    (CVE-2016-0798)

  - Multiple memory corruption issues exist in the bundled
    version of OpenSSL that allow a remote attacker to cause
    a denial of service condition or the execution of
    arbitrary code. (CVE-2016-0799)

  - A flaw exists in the bundled version of OpenSSL that
    allows a cross-protocol Bleichenbacher padding oracle
    attack known as DROWN (Decrypting RSA with Obsolete and
    Weakened eNcryption). This vulnerability exists due to a
    flaw in the Secure Sockets Layer Version 2 (SSLv2)
    implementation, and it allows captured TLS traffic to be
    decrypted. A man-in-the-middle attacker can exploit this
    to decrypt the TLS connection by utilizing previously
    captured traffic and weak cryptography along with a
    series of specially crafted connections to an SSLv2
    server that uses the same private key. (CVE-2016-0800)

  - A man-in-the-middle spoofing vulnerability exists due to
    the server hostname not being verified to match a domain
    name in the Subject's Common Name (CN) or SubjectAltName
    field of the X.509 certificate. A man-in-the-middle
    attacker can exploit this, by spoofing the TLS/SSL
    server via a certificate that appears valid, to disclose
    sensitive information or manipulate transmitted data.
    (CVE-2016-2047)

  - An unspecified flaw exists in the Optimizer subcomponent
    that allow an authenticated, remote attacker to cause a
    denial of service condition. (CVE-2017-10378)

  - A flaw exists related to certificate validation due to
    the server hostname not being verified to match a domain
    name in the X.509 certificate. A man-in-the-middle
    attacker can exploit this, by spoofing the TLS/SSL
    server via a certificate that appears valid, to disclose
    sensitive information or manipulate data.

  - An integer overflow condition exists that is triggered
    due to improper validation of user-supplied input when
    processing client handshakes. An authenticated, remote
    attacker can exploit this to cause the server to exit,
    resulting in a denial of service condition.

  - An information disclosure vulnerability exists due to
    overly verbose error messages returning part of the SQL
    statement that produced them. An authenticated, remote
    attacker can exploit this to disclose sensitive
    information.

  - A flaw exists in InnoDB that is triggered during the
    handling of an ALTER TABLE or ADD COLUMN operation on a
    table with virtual columns. An authenticated, remote
    attacker can exploit this to crash the server, resulting
    in a denial of service condition.");
  # https://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ffb7b96f");
  # http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1e07fa0e");
  script_set_attribute(attribute:"see_also", value:"https://support.oracle.com/rs?type=doc&id=2307762.1");
  # https://www.oracle.com/ocom/groups/public/@otn/documents/webcontent/3937099.xml
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8e9f2a38");
  script_set_attribute(attribute:"see_also", value:"https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-12.html");
  script_set_attribute(attribute:"see_also", value:"https://drownattack.com/");
  script_set_attribute(attribute:"see_also", value:"https://www.drownattack.com/drown-attack-paper.pdf");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MySQL version 5.7.12 or later.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-0799");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/04/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/04/22");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:mysql");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Databases");

  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mysql_version.nasl", "mysql_login.nasl");
  script_require_keys("Settings/ParanoidReport");
  script_require_ports("Services/mysql", 3306);

  exit(0);
}

include("mysql_version.inc");

mysql_check_version(fixed:'5.7.12', min:'5.7', severity:SECURITY_HOLE);