NewStart CGSL MAIN 6.06 : libreswan Multiple Vulnerabilities (NS-SA-2025-0243)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0243. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(323228);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/27");

  script_cve_id(
    "CVE-2013-2052",
    "CVE-2013-4564",
    "CVE-2013-6467",
    "CVE-2015-3204",
    "CVE-2015-3240",
    "CVE-2016-3071",
    "CVE-2016-5391",
    "CVE-2023-30570",
    "CVE-2024-2357",
    "CVE-2024-3652"
  );
  script_xref(name:"IAVA", value:"2024-A-0255");

  script_name(english:"NewStart CGSL MAIN 6.06 : libreswan Multiple Vulnerabilities (NS-SA-2025-0243)");

  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 libreswan packages installed that are affected by multiple
vulnerabilities:

  - pluto in Libreswan before 4.11 allows a denial of service (responder SPI mishandling and daemon crash) via
    unauthenticated IKEv1 Aggressive Mode packets. The earliest affected version is 3.28. (CVE-2023-30570)

  - Buffer overflow in the atodn function in libreswan 3.0 and 3.1, when Opportunistic Encryption is enabled
    and an RSA key is being used, allows remote attackers to cause a denial of service (pluto IKE daemon
    crash) and possibly execute arbitrary code via crafted DNS TXT records. NOTE: this might be the same
    vulnerability as CVE-2013-2053 and CVE-2013-2054. (CVE-2013-2052)

  - Libreswan 3.6 allows remote attackers to cause a denial of service (crash) via a small length value and
    (1) no version or (2) an invalid major number in an IKE packet. (CVE-2013-4564)

  - Libreswan 3.7 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference
    and IKE daemon restart) via IKEv2 packets that lack expected payloads. (CVE-2013-6467)

  - libreswan 3.9 through 3.12 allows remote attackers to cause a denial of service (daemon restart) via an
    IKEv1 packet with (1) unassigned bits set in the IPSEC DOI value or (2) the next payload value set to
    ISAKMP_NEXT_SAK. (CVE-2015-3204)

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-2025-0243");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2013-2052");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2013-4564");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2013-6467");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2015-3204");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2015-3240");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2016-3071");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2016-5391");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-30570");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-2357");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-3652");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL libreswan 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:H/Au:N/C:P/I:P/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:"cvss_score_source", value:"CVE-2013-2052");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-30570");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/05/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libreswan");
  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:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 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': [
    'libreswan-4.9-3.zncgsl6_8.3.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_WARNING,
    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, 'libreswan');
}