GitLab 13.0 < 14.0.9 / 14.1 < 14.1.4 / 14.2 < 14.2.2 (CVE-2021-22263)

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

include('compat.inc');

if (description)
{
  script_id(197370);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/17");

  script_cve_id("CVE-2021-22263");

  script_name(english:"GitLab 13.0 < 14.0.9 / 14.1 < 14.1.4 / 14.2 < 14.2.2 (CVE-2021-22263)");

  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:

  - An issue has been discovered in GitLab affecting all versions starting from 13.0 before 14.0.9, all
    versions starting from 14.1 before 14.1.4, all versions starting from 14.2 before 14.2.2. A user account
    with 'external' status which is granted 'Maintainer' role on any project on the GitLab instance where
    'project tokens' are allowed may elevate its privilege to 'Internal' and access Internal projects.
    (CVE-2021-22263)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://gitlab.com/gitlab-org/gitlab/-/issues/331473");
  script_set_attribute(attribute:"see_also", value:"https://hackerone.com/reports/1193062");
  # https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22263.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0d006108");
  script_set_attribute(attribute:"solution", value:
"Upgrade to GitLab version 14.0.9, 14.1.4, 14.2.2 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-22263");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/10/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/17");

  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 =~ "^14\.(0|1|2)$")
  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' : '13.0', 'fixed_version' : '14.0.9' },
  { 'min_version' : '14.1', 'fixed_version' : '14.1.4' },
  { 'min_version' : '14.2', 'fixed_version' : '14.2.2' }
];

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