NewStart CGSL MAIN 7.02 : libgit2 Multiple Vulnerabilities (NS-SA-2025-0127)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0127. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(242799);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/25");

  script_cve_id("CVE-2024-24575", "CVE-2024-24577");

  script_name(english:"NewStart CGSL MAIN 7.02 : libgit2 Multiple Vulnerabilities (NS-SA-2025-0127)");

  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 libgit2 packages installed that are affected by multiple
vulnerabilities:

  - libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid
    API, allowing to build Git functionality into your application. Using well-crafted inputs to
    `git_index_add` can cause heap corruption that could be leveraged for arbitrary code execution. There is
    an issue in the `has_dir_name` function in `src/libgit2/index.c`, which frees an entry that should not be
    freed. The freed entry is later used and overwritten with potentially bad actor-controlled data leading to
    controlled heap corruption. Depending on the application that uses libgit2, this could lead to arbitrary
    code execution. This issue has been patched in version 1.6.5 and 1.7.2. (CVE-2024-24577)

  - libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid
    API, allowing to build Git functionality into your application. Using well-crafted inputs to
    `git_revparse_single` can cause the function to enter an infinite loop, potentially causing a Denial of
    Service attack in the calling application. The revparse function in `src/libgit2/revparse.c` uses a loop
    to parse the user-provided spec string. There is an edge-case during parsing that allows a bad actor to
    force the loop conditions to access arbitrary memory. Potentially, this could also leak memory if the
    extracted rev spec is reflected back to the attacker. As such, libgit2 versions before 1.4.0 are not
    affected. Users should upgrade to version 1.6.5 or 1.7.2. (CVE-2024-24575)

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-2025-0127");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-24575");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-24577");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL libgit2 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:L/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:N/AC:L/PR:N/UI:N/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-2024-24577");

  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:"2024/02/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/07/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libgit2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libgit2-devel");
  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': [
    'libgit2-1.7.2-1.zncgsl7.4',
    'libgit2-devel-1.7.2-1.zncgsl7.4'
  ]
};
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, 'libgit2');
}