GitLab 13.2 < 18.3.6 / 18.4 < 18.4.4 / 18.5 < 18.5.2 (CVE-2025-6171)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(298858);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/12");

  script_cve_id("CVE-2025-6171");

  script_name(english:"GitLab 13.2 < 18.3.6 / 18.4 < 18.4.4 / 18.5 < 18.5.2 (CVE-2025-6171)");

  script_set_attribute(attribute:"synopsis", value:
"The version of GitLab installed on the remote host is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of GitLab installed on the remote host is affected by a vulnerability, as follows:

  - GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.2 before 18.3.6, 18.4 before
    18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker with reporter access to
    view branch names and pipeline details by accessing the packages API endpoint even when repository access
    was disabled. (CVE-2025-6171)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://gitlab.com/gitlab-org/cves/-/blob/master/2025/CVE-2025-6171.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?64953cd2");
  # https://about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c61d1f3b");
  script_set_attribute(attribute:"see_also", value:"https://gitlab.com/gitlab-org/gitlab/-/issues/549730");
  script_set_attribute(attribute:"see_also", value:"https://hackerone.com/reports/3183740");
  script_set_attribute(attribute:"solution", value:
"Upgrade to GitLab version 18.3.6, 18.4.4, 18.5.2 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
  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:L/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-6171");

  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:"2025/11/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/11/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/12");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:gitlab:gitlab");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("gitlab_webui_detect.nbin", "gitlab_nix_installed.nbin");
  script_require_keys("installed_sw/GitLab");

  exit(0);
}

include('vcf.inc');

var app = 'GitLab';
var app_info = vcf::combined_get_app_info(app:app);

if (report_paranoia < 2 && max_index(app_info.parsed_version[0]) < 3 && app_info.version =~ "^18\.(3|4|5)$")
  if (!empty_or_null(app_info.port))
    audit(AUDIT_POTENTIAL_VULN, app, app_info.version, app_info.port);
  else
    audit(AUDIT_POTENTIAL_VULN, app, app_info.version);

var constraints = [
  { 'min_version' : '13.2', 'fixed_version' : '18.3.6' },
  { 'min_version' : '18.4', 'fixed_version' : '18.4.4' },
  { 'min_version' : '18.5', 'fixed_version' : '18.5.2' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);