GitLab 0.0 < 15.5.9 / 15.6 < 15.6.6 / 15.7 < 15.7.5 (CVE-2022-41903)

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

include('compat.inc');

if (description)
{
  script_id(187544);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/03");

  script_cve_id("CVE-2022-41903");

  script_name(english:"GitLab 0.0 < 15.5.9 / 15.6 < 15.6.6 / 15.7 < 15.7.5 (CVE-2022-41903)");

  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:

  - Git is distributed revision control system. `git log` can display commits in an arbitrary format using its
    `--format` specifiers. This functionality is also exposed to `git archive` via the `export-subst`
    gitattribute. When processing the padding operators, there is a integer overflow in
    `pretty.c::format_and_pad_commit()` where a `size_t` is stored improperly as an `int`, and then added as
    an offset to a `memcpy()`. This overflow can be triggered directly by a user running a command which
    invokes the commit formatting machinery (e.g., `git log --format=...`). It may also be triggered
    indirectly through git archive via the export-subst mechanism, which expands format specifiers inside of
    files within the repository during a git archive. This integer overflow can result in arbitrary heap
    writes, which may result in arbitrary code execution. The problem has been patched in the versions
    published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. Users who are unable to
    upgrade should disable `git archive` in untrusted repositories. If you expose git archive via `git
    daemon`, disable it by running `git config --global daemon.uploadArch false`. (CVE-2022-41903)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://about.gitlab.com/releases/2023/01/17/critical-security-release-gitlab-15-7-5-released/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5c35b5da");
  script_set_attribute(attribute:"solution", value:
"Upgrade to GitLab version 15.5.9, 15.6.6, 15.7.5 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  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-2022-41903");

  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:"2023/01/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/03");

  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) 2024 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 =~ "^15\.(5|6|7)$")
  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' : '0.0', 'fixed_version' : '15.5.9' },
  { 'min_version' : '15.6', 'fixed_version' : '15.6.6' },
  { 'min_version' : '15.7', 'fixed_version' : '15.7.5' }
];

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