NewStart CGSL MAIN 7.02 : git Multiple Vulnerabilities (NS-SA-2025-0249)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0249. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(271297);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/24");

  script_cve_id("CVE-2024-32004", "CVE-2024-32020", "CVE-2024-32021");

  script_name(english:"NewStart CGSL MAIN 7.02 : git Multiple Vulnerabilities (NS-SA-2025-0249)");

  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 7.02, has git packages installed that are affected by multiple
vulnerabilities:

  - Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and
    2.39.4, an attacker can prepare a local repository in such a way that, when cloned, will execute arbitrary
    code during the operation. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2,
    2.41.1, 2.40.2, and 2.39.4. As a workaround, avoid cloning repositories from untrusted sources.
    (CVE-2024-32004)

  - Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and
    2.39.4, local clones may end up hardlinking files into the target repository's object database when source
    and target repository reside on the same disk. If the source repository is owned by a different user, then
    those hardlinked files may be rewritten at any point in time by the untrusted user. Cloning local
    repositories will cause Git to either copy or hardlink files of the source repository into the target
    repository. This significantly speeds up such local clones compared to doing a proper clone and saves
    both disk space and compute time. When cloning a repository located on the same disk that is owned by a
    different user than the current user we also end up creating such hardlinks. These files will continue to
    be owned and controlled by the potentially-untrusted user and can be rewritten by them at will in the
    future. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and
    2.39.4. (CVE-2024-32020)

  - Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and
    2.39.4, when cloning a local source repository that contains symlinks via the filesystem, Git may create
    hardlinks to arbitrary user-readable files on the same filesystem as the target repository in the
    `objects/` directory. Cloning a local repository over the filesystem may creating hardlinks to arbitrary
    user-owned files on the same filesystem in the target Git repository's `objects/` directory. When cloning
    a repository over the filesystem (without explicitly specifying the `file://` protocol or `--no-local`),
    the optimizations for local cloning will be used, which include attempting to hard link the object files
    instead of copying them. While the code includes checks against symbolic links in the source repository,
    which were added during the fix for CVE-2022-39253, these checks can still be raced because the hard link
    operation ultimately follows symlinks. If the object on the filesystem appears as a file during the check,
    and then a symlink during the operation, this will allow the adversary to bypass the check and create
    hardlinks in the destination objects directory to arbitrary, user-readable files. The problem has been
    patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4. (CVE-2024-32021)

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-2025-0249");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-32004");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-32020");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-32021");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL git packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/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:L/AC:H/PR:N/UI:N/S:C/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-2024-32004");

  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:"2024/05/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/10/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-all");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-core-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-credential-libsecret");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-email");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-gui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-instaweb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-p4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-subtree");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:git-svn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gitk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:gitweb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Git");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Git-SVN");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:7");
  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) 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\s7\.02")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 7.02');

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 7.02': [
    'git-2.41.0-1.zncgsl7.10',
    'git-all-2.41.0-1.zncgsl7.10',
    'git-core-2.41.0-1.zncgsl7.10',
    'git-core-doc-2.41.0-1.zncgsl7.10',
    'git-credential-libsecret-2.41.0-1.zncgsl7.10',
    'git-daemon-2.41.0-1.zncgsl7.10',
    'git-email-2.41.0-1.zncgsl7.10',
    'git-gui-2.41.0-1.zncgsl7.10',
    'git-instaweb-2.41.0-1.zncgsl7.10',
    'git-p4-2.41.0-1.zncgsl7.10',
    'git-subtree-2.41.0-1.zncgsl7.10',
    'git-svn-2.41.0-1.zncgsl7.10',
    'gitk-2.41.0-1.zncgsl7.10',
    'gitweb-2.41.0-1.zncgsl7.10',
    'perl-Git-2.41.0-1.zncgsl7.10',
    'perl-Git-SVN-2.41.0-1.zncgsl7.10'
  ]
};
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, 'git');
}