Vulnerabilities > CVE-2005-2666 - Credentials Management vulnerability in Openbsd Openssh

#%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-2007:0257. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(25143);
  script_version ("1.23");
  script_cvs_date("Date: 2019/10/25 13:36:12");

  script_cve_id("CVE-2005-2666");
  script_xref(name:"RHSA", value:"2007:0257");

  script_name(english:"RHEL 4 : openssh (RHSA-2007:0257)");
  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 openssh packages that fix a security issue and various bugs
are now available.

This update has been rated as having low security impact by the Red
Hat Security Response Team.

OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. This
package includes the core files necessary for both the OpenSSH client
and server.

OpenSSH stores hostnames, IP addresses, and keys in plaintext in the
known_hosts file. A local attacker that has already compromised a
user's SSH account could use this information to generate a list of
additional targets that are likely to have the same password or key.
(CVE-2005-2666)

The following bugs have also been fixed in this update :

* The ssh client could abort the running connection when the server
application generated a large output at once.

* When 'X11UseLocalhost' option was set to 'no' on systems with IPv6
networking enabled, the X11 forwarding socket listened only for IPv6
connections.

* When the privilege separation was enabled in /etc/ssh/sshd_config,
some log messages in the system log were duplicated and also had
timestamps from an incorrect timezone.

All users of openssh should upgrade to these updated packages, which
contain backported patches to correct these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-2666"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2007:0257"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:N");
  script_cwe_id(255);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-askpass");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-askpass-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/08/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/05/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 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:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 4.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-2007:0257";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      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:"RHEL4", reference:"openssh-3.9p1-8.RHEL4.20")) flag++;
  if (rpm_check(release:"RHEL4", reference:"openssh-askpass-3.9p1-8.RHEL4.20")) flag++;
  if (rpm_check(release:"RHEL4", reference:"openssh-askpass-gnome-3.9p1-8.RHEL4.20")) flag++;
  if (rpm_check(release:"RHEL4", reference:"openssh-clients-3.9p1-8.RHEL4.20")) flag++;
  if (rpm_check(release:"RHEL4", reference:"openssh-server-3.9p1-8.RHEL4.20")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      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, "openssh / openssh-askpass / openssh-askpass-gnome / openssh-clients / etc");
  }
}

#%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-2007:0257 and 
# Oracle Linux Security Advisory ELSA-2007-0257 respectively.
#

include("compat.inc");

if (description)
{
  script_id(67481);
  script_version("1.7");
  script_cvs_date("Date: 2019/10/25 13:36:06");

  script_cve_id("CVE-2005-2666");
  script_xref(name:"RHSA", value:"2007:0257");

  script_name(english:"Oracle Linux 4 : openssh (ELSA-2007-0257)");
  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 2007:0257 :

Updated openssh packages that fix a security issue and various bugs
are now available.

This update has been rated as having low security impact by the Red
Hat Security Response Team.

OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. This
package includes the core files necessary for both the OpenSSH client
and server.

OpenSSH stores hostnames, IP addresses, and keys in plaintext in the
known_hosts file. A local attacker that has already compromised a
user's SSH account could use this information to generate a list of
additional targets that are likely to have the same password or key.
(CVE-2005-2666)

The following bugs have also been fixed in this update :

* The ssh client could abort the running connection when the server
application generated a large output at once.

* When 'X11UseLocalhost' option was set to 'no' on systems with IPv6
networking enabled, the X11 forwarding socket listened only for IPv6
connections.

* When the privilege separation was enabled in /etc/ssh/sshd_config,
some log messages in the system log were duplicated and also had
timestamps from an incorrect timezone.

All users of openssh should upgrade to these updated packages, which
contain backported patches to correct these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2007-May/000149.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected openssh packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:N");
  script_cwe_id(255);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openssh-askpass");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openssh-askpass-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openssh-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openssh-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/08/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/17");
  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:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 4", "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:"EL4", cpu:"i386", reference:"openssh-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"openssh-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"i386", reference:"openssh-askpass-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"openssh-askpass-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"i386", reference:"openssh-askpass-gnome-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"openssh-askpass-gnome-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"i386", reference:"openssh-clients-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"openssh-clients-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"i386", reference:"openssh-server-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"openssh-server-3.9p1-8.RHEL4.20")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssh / openssh-askpass / openssh-askpass-gnome / openssh-clients / etc");
}

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

include('compat.inc');

if (description)
{
  script_id(44075);
  script_version("1.8");
  script_cvs_date("Date: 2018/11/15 20:50:23");

  script_cve_id("CVE-2005-2666", "CVE-2007-4654", "CVE-2004-2760");

  script_name(english:"OpenSSH < 4.0 known_hosts Plaintext Host Information Disclosure");
  script_summary(english:"Checks for remote SSH version");

  script_set_attribute(attribute:"synopsis", value:
"The remote SSH server is affected by an information disclosure
vulnerability.");

  script_set_attribute(attribute:"description", value:
"According to its banner, the remote host is running a version of
OpenSSH prior to 4.0.  Versions of OpenSSH earlier than 4.0 are
affected by an information disclosure vulnerability because the
application stores hostnames, IP addresses, and keys in plaintext in
the 'known_hosts' file.  A local attacker, exploiting this flaw, could
gain access to sensitive information that could be used in subsequent
attacks.");

  script_set_attribute(attribute:"see_also", value:"https://www.openssh.com/txt/release-4.0");
  script_set_attribute(attribute:"see_also", value:"http://nms.csail.mit.edu/projects/ssh/");
  script_set_attribute(attribute:"see_also", value:"http://www.eweek.com/c/a/Security/Researchers-Reveal-Holes-in-Grid/");
  script_set_attribute(attribute:"solution", value:"Upgrade to OpenSSH 4.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:N");
  script_cwe_id(16, 255, 399);

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/08/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2005/03/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/10/04");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:openbsd:openssh");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2018 Tenable Network Security, Inc.");
  script_family(english:"Misc.");

  script_dependencies("ssh_detect.nasl");
  script_require_ports("Services/ssh", 22);

  exit(0);
}

include("backport.inc");
include("global_settings.inc");
include("misc_func.inc");

# Ensure the port is open.
port = get_service(svc:'ssh', exit_on_fail:TRUE);

# Get banner for service.
banner = get_kb_item_or_exit('SSH/banner/'+port);

bp_banner = tolower(get_backport_banner(banner:banner));
if ('openssh' >!< bp_banner) exit(0, 'The SSH service on port '+port+' is not OpenSSH.');
if (backported) exit(1, 'The banner from the OpenSSH server on port '+port+' indicates patches may have been backported.');

# Check the version in the banner.
matches = eregmatch(string:bp_banner, pattern:'openssh[-_]([0-9][-._0-9a-z]+)');
if (isnull(matches)) exit(0, 'Could not parse number from version string on port ' + port + '.');

version = matches[1];
if (version =~ '^[0-3]\\.')
{
  if (report_verbosity > 0)
  {
    report = 
      '\n  Version source    : ' + banner +
      '\n  Installed version : ' + version + 
      '\n  Fixed version     : 4.0\n';
    security_note(port:port, extra:report);
  }
  else security_note(port);
  exit(0);
}
else exit(0, 'The OpenSSH server on port '+port+' is not affected as it\'s version '+version+'.');

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(60168);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/25 13:36:16");

  script_cve_id("CVE-2005-2666");

  script_name(english:"Scientific Linux Security Update : openssh on SL4.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"OpenSSH stores hostnames, IP addresses, and keys in plaintext in the
known_hosts file. A local attacker that has already compromised a
user's SSH account could use this information to generate a list of
additional targets that are likely to have the same password or key.
(CVE-2005-2666)"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind0705&L=scientific-linux-errata&T=0&P=1565
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?de9276bc"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:N");
  script_cwe_id(255);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "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) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL4", reference:"openssh-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-askpass-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-askpass-gnome-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-clients-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"SL4", reference:"openssh-server-3.9p1-8.RHEL4.20")) flag++;


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

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


include("compat.inc");


if (description)
{
  script_id(55992);
  script_version("1.17");
  script_cvs_date("Date: 2018/07/31 17:27:54");

  script_cve_id(
    "CVE-2000-0525",
    "CVE-2000-1169",
    "CVE-2001-0361",
    "CVE-2001-0529",
    "CVE-2001-0572",
    "CVE-2001-0816",
    "CVE-2001-0872",
    "CVE-2001-1380",
    "CVE-2001-1382",
    "CVE-2001-1459",
    "CVE-2001-1507",
    "CVE-2001-1585",
    "CVE-2002-0083",
    "CVE-2002-0575",
    "CVE-2002-0639",
    "CVE-2002-0640",
    "CVE-2002-0765",
    "CVE-2003-0190",
    "CVE-2003-0386",
    "CVE-2003-0682",
    "CVE-2003-0693",
    "CVE-2003-0695",
    "CVE-2003-0786",
    "CVE-2003-0787",
    "CVE-2003-1562",
    "CVE-2004-0175",
    "CVE-2004-1653",
    "CVE-2004-2069",
    "CVE-2004-2760",
    "CVE-2005-2666",
    "CVE-2005-2797",
    "CVE-2005-2798",
    "CVE-2006-0225",
    "CVE-2006-4924",
    "CVE-2006-4925",
    "CVE-2006-5051",
    "CVE-2006-5052",
    "CVE-2006-5229",
    "CVE-2006-5794",
    "CVE-2007-2243",
    "CVE-2007-2768",
    "CVE-2007-3102",
    "CVE-2007-4752",
    "CVE-2008-1483",
    "CVE-2008-1657",
    "CVE-2008-3259",
    "CVE-2008-4109",
    "CVE-2008-5161"
  );
  script_bugtraq_id(32319);
  script_xref(name:"CERT", value:"958563");

  script_name(english:"SunSSH < 1.1.1 / 1.3 CBC Plaintext Disclosure");
  script_summary(english:"Checks SSH banner");

  script_set_attribute(
    attribute:"synopsis",
    value:
"The SSH service running on the remote host has an information
disclosure vulnerability."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The version of SunSSH running on the remote host has an information
disclosure vulnerability.  A design flaw in the SSH specification
could allow a man-in-the-middle attacker to recover up to 32 bits of
plaintext from an SSH-protected connection in the standard
configuration.  An attacker could exploit this to gain access to
sensitive information.

Note that this version of SunSSH is also prone to several additional
issues but Nessus did not test for them." );

  # http://web.archive.org/web/20090523091544/http://www.cpni.gov.uk/docs/vulnerability_advisory_ssh.txt
  script_set_attribute(attribute:"see_also",value:"http://www.nessus.org/u?4984aeb9");
  # http://hub.opensolaris.org/bin/view/Community+Group+security/SSH#HHistoryofSunSSH
  script_set_attribute(attribute:"see_also",value:"http://www.nessus.org/u?b679208a");
  script_set_attribute(attribute:"see_also",value:"http://blogs.oracle.com/janp/entry/on_sunssh_versioning");
  script_set_attribute(
    attribute:"solution",
    value:"Upgrade to SunSSH 1.1.1 / 1.3 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:F/RL:OF/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_cwe_id(16, 20, 22, 189, 200, 255, 264, 287, 310, 362, 399);
  script_set_attribute(attribute:"vuln_publication_date",value:"2008/11/17");
  script_set_attribute(attribute:"patch_publication_date",value:"2008/12/11");
  script_set_attribute(attribute:"plugin_publication_date",value:"2011/08/29");
  script_set_attribute(attribute:"plugin_type",value:"remote");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2011-2018 Tenable Network Security, Inc.");

  script_dependencies("ssh_detect.nasl");
  script_require_ports("Services/ssh");

  exit(0);
}

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

# Ensure the port is open.
port = get_service(svc:"ssh", default:22, exit_on_fail:TRUE);

# Get banner for service.
banner = get_kb_item_or_exit("SSH/banner/" + port);

# Check that we're using SunSSH.
if ('sun_ssh' >!< tolower(banner))
  exit(0, "The SSH service on port " + port + " is not SunSSH.");

# Check the version in the banner.
match = eregmatch(string:banner, pattern:"sun_ssh[-_]([0-9.]+)$", icase:TRUE);
if (isnull(match))
  exit(1, "Could not parse the version string from the banner on port " + port + ".");
else
  version = match[1];

# the Oracle (Sun) blog above explains how the versioning works. we could
# probably explicitly check for each vulnerable version if it came down to it
if (
  ver_compare(ver:version, fix:'1.1.1', strict:FALSE) == -1 ||
  version == '1.2'
)
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Version source    : ' + banner +
      '\n  Installed version : ' + version +
      '\n  Fixed version     : 1.1.1 / 1.3\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else exit(0, "The SunSSH server on port "+port+" is not affected as it's version "+version+".");

#%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-2007:0257 and 
# CentOS Errata and Security Advisory 2007:0257 respectively.
#

include("compat.inc");

if (description)
{
  script_id(67047);
  script_version("1.6");
  script_cvs_date("Date: 2019/10/25 13:36:03");

  script_cve_id("CVE-2005-2666");
  script_xref(name:"RHSA", value:"2007:0257");

  script_name(english:"CentOS 4 : openssh (CESA-2007:0257)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated openssh packages that fix a security issue and various bugs
are now available.

This update has been rated as having low security impact by the Red
Hat Security Response Team.

OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. This
package includes the core files necessary for both the OpenSSH client
and server.

OpenSSH stores hostnames, IP addresses, and keys in plaintext in the
known_hosts file. A local attacker that has already compromised a
user's SSH account could use this information to generate a list of
additional targets that are likely to have the same password or key.
(CVE-2005-2666)

The following bugs have also been fixed in this update :

* The ssh client could abort the running connection when the server
application generated a large output at once.

* When 'X11UseLocalhost' option was set to 'no' on systems with IPv6
networking enabled, the X11 forwarding socket listened only for IPv6
connections.

* When the privilege separation was enabled in /etc/ssh/sshd_config,
some log messages in the system log were duplicated and also had
timestamps from an incorrect timezone.

All users of openssh should upgrade to these updated packages, which
contain backported patches to correct these issues."
  );
  # https://lists.centos.org/pipermail/centos-announce/2007-May/013705.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?cb7c8f28"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected openssh packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:N");
  script_cwe_id(255);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:openssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:openssh-askpass");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:openssh-askpass-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:openssh-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:openssh-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/08/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/06/29");
  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:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 4.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/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, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"openssh-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"openssh-askpass-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"openssh-askpass-gnome-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"openssh-clients-3.9p1-8.RHEL4.20")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"openssh-server-3.9p1-8.RHEL4.20")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssh / openssh-askpass / openssh-askpass-gnome / openssh-clients / etc");
}