NewStart CGSL MAIN 6.02 : rpm Multiple Vulnerabilities (NS-SA-2024-0052)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2024-0052. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(206861);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/10");

  script_cve_id("CVE-2021-3421", "CVE-2021-20271");

  script_name(english:"NewStart CGSL MAIN 6.02 : rpm Multiple Vulnerabilities (NS-SA-2024-0052)");

  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 6.02, has rpm packages installed that are affected by multiple
vulnerabilities:

  - A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an
    attacker who can convince a victim to install a seemingly verifiable package, whose signature header was
    modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is
    to data integrity, confidentiality, and system availability. (CVE-2021-20271)

  - A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can
    convince a victim to install a seemingly verifiable package or compromise an RPM repository, to cause RPM
    database corruption. The highest threat from this vulnerability is to data integrity. (CVE-2021-3421)

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-2024-0052");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-20271");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-3421");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL rpm 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:L/AC:H/PR:N/UI:R/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-2021-20271");

  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:"2021/03/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/09/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/09/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python3-rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm-build");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm-build-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm-plugin-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm-plugin-systemd-inhibit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:rpm-sign");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:6");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include('rpm.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 MAIN 6.02")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.02');

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 6.02': [
    'python3-rpm-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-build-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-build-libs-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-devel-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-libs-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-plugin-selinux-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-plugin-systemd-inhibit-4.14.3-14.el8_4.cgslv6_2.17.g642aa15',
    'rpm-sign-4.14.3-14.el8_4.cgslv6_2.17.g642aa15'
  ]
};
var pkg_list = pkgs[os_release];

foreach (pkg in pkg_list)
  if (rpm_check(release:'ZTE ' + os_release, reference:pkg)) 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, 'rpm');
}