NewStart CGSL MAIN 6.06 : openssh Multiple Vulnerabilities (NS-SA-2025-0210)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0210. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(266250);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/30");

  script_cve_id(
    "CVE-2006-0225",
    "CVE-2006-4924",
    "CVE-2006-5051",
    "CVE-2006-5794",
    "CVE-2007-3102",
    "CVE-2010-4755",
    "CVE-2010-5107",
    "CVE-2014-2532",
    "CVE-2014-2653",
    "CVE-2014-9278",
    "CVE-2015-5600",
    "CVE-2015-8325",
    "CVE-2016-0777",
    "CVE-2016-1908",
    "CVE-2016-6210",
    "CVE-2018-20685",
    "CVE-2021-41617"
  );
  script_xref(name:"IAVA", value:"2021-A-0474-S");

  script_name(english:"NewStart CGSL MAIN 6.06 : openssh Multiple Vulnerabilities (NS-SA-2025-0210)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 6.06, has openssh packages installed that are affected by multiple
vulnerabilities:

  - The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and
    relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a
    fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11
    server, as demonstrated by lack of the SECURITY extension on this X11 server. (CVE-2016-1908)

  - Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service
    (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors
    that lead to a double-free. (CVE-2006-5051)

  - scp in OpenSSH 4.2p1 allows attackers to execute arbitrary commands via filenames that contain shell
    metacharacters or spaces, which are expanded twice. (CVE-2006-0225)

  - sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a
    denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not
    properly handled by the CRC compensation attack detector. (CVE-2006-4924)

  - Unspecified vulnerability in the sshd Privilege Separation Monitor in OpenSSH before 4.5 causes weaker
    verification that authentication has been successful, which might allow attackers to bypass
    authentication. NOTE: as of 20061108, it is believed that this issue is only exploitable by leveraging
    vulnerabilities in the unprivileged process, which are not known to exist. (CVE-2006-5794)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/notice/NS-SA-2025-0210");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2006-0225");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2006-4924");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2006-5051");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2006-5794");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2007-3102");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2010-4755");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2010-5107");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2014-2532");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2014-2653");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2014-9278");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2015-5600");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2015-8325");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2016-0777");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2016-1908");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2016-6210");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2018-20685");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-41617");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL openssh packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2006-5051");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2016-1908");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/01/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/09/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:6");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  exit(0);
}

include('rpm2.inc');

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

var os_release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(os_release) || os_release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');

if (os_release !~ "CGSL\sMAIN\s6\.06")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.06');

if (!get_kb_item('Host/ZTE-CGSL/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var 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, 'NewStart Carrier Grade Server Linux', cpu);

var flag = 0;

var pkgs = {
  'CGSL MAIN 6.06': [
    'openssh-8.5p1-3.zncgsl6.t1.0',
    'openssh-clients-8.5p1-3.zncgsl6.t1.0',
    'openssh-server-8.5p1-3.zncgsl6.t1.0'
  ]
};
var pkg_list = pkgs[os_release];
var pkg;
foreach (pkg in pkg_list)
  if (rpm_check(reference:pkg, release:'ZTE ' + os_release, rpm_spec_vers_cmp:TRUE)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'openssh');
}