GitLab 16.0 < 16.3.6 / 16.4 < 16.4.2 / 16.5 < 16.5.1 (CVE-2023-5600)

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

include('compat.inc');

if (description)
{
  script_id(185484);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/08");

  script_cve_id("CVE-2023-5600");
  script_xref(name:"IAVA", value:"2023-A-0599-S");

  script_name(english:"GitLab 16.0 < 16.3.6 / 16.4 < 16.4.2 / 16.5 < 16.5.1 (CVE-2023-5600)");

  script_set_attribute(attribute:"synopsis", value:
"The GitLab instance installed on the remote host is affected by an improper access control vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of GitLab installed on the remote host is between 16.0 prior to 16.3.6, 16.4 prior to 16.4.2 or 16.5 
prior to 16.5.1. It is, therefore, affected by an improper access control vulnerability as referenced in the 
vendor advisory.

  - Arbitrary access to the titles of an private specific references could be leaked through the service-desk custom 
    email template. (CVE-2023-5600)

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/2023/10/31/security-release-gitlab-16-5-1-16-4-2-16-3-6-released/#titles-exposed-by-service-desk-template
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?131606ce");
  script_set_attribute(attribute:"solution", value:
"Upgrade to GitLab version 16.3.6, 16.4.2, 16.5.1 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/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:H/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-2023-5600");

  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:"2023/10/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/13");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:gitlab:gitlab");
  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 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\.(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' : '16.0', 'fixed_version' : '16.3.6'},
  { 'min_version' : '16.4', 'fixed_version' : '16.4.2' },
  { 'min_version' : '16.5', 'fixed_version' : '16.5.1' }
];

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