GitLab 13.3 < 16.1.5 / 16.2 < 16.2.5 / 16.3 < 16.3.1 (CVE-2023-4638)

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

include('compat.inc');

if (description)
{
  script_id(180424);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/02");

  script_cve_id("CVE-2023-4638");
  script_xref(name:"IAVA", value:"2023-A-0452-S");

  script_name(english:"GitLab 13.3 < 16.1.5 / 16.2 < 16.2.5 / 16.3 < 16.3.1 (CVE-2023-4638)");

  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 CE/EE affecting all versions starting from 13.3 before 16.1.5, all
    versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. Due to improper
    permission validation it was possible to fork a project outside of current group by an unauthorised user.
    (CVE-2023-4638)

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/2023/08/31/security-release-gitlab-16-3-1-released/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9f755f06");
  script_set_attribute(attribute:"solution", value:
"Upgrade to GitLab version 16.1.5, 16.2.5, 16.3.1 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/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:N/I:L/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-2023-4638");

  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:"2023/08/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/31");

  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:"stig_severity", value:"I");
  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) 2023-2024 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 =~ "^16\.(1|2|3)$")
  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' : '13.3', 'fixed_version' : '16.1.5' },
  { 'min_version' : '16.2', 'fixed_version' : '16.2.5' },
  { 'min_version' : '16.3', 'fixed_version' : '16.3.1' }
];

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