GitLab 5.1 < 15.9.6 / 15.10 < 15.10.5 / 15.11 < 15.11.1 (CVE-2023-1836)

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

include('compat.inc');

if (description)
{
  script_id(174984);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/03");

  script_cve_id("CVE-2023-1836");
  script_xref(name:"IAVA", value:"2023-A-0235-S");

  script_name(english:"GitLab 5.1 < 15.9.6 / 15.10 < 15.10.5 / 15.11 < 15.11.1 (CVE-2023-1836)");

  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:

  - A cross-site scripting issue has been discovered in GitLab affecting all versions starting from 5.1 before
    15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1.
    When viewing an XML file in a repository in raw mode, it can be made to render as HTML if viewed under
    specific circumstances (CVE-2023-1836)

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/2023/05/02/security-release-gitlab-15-11-1-released/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0f020e43");
  script_set_attribute(attribute:"solution", value:
"Upgrade to GitLab version 15.9.6, 15.10.5, 15.11.1 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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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-2023-1836");

  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:"2023/05/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/05/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/05/02");

  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 =~ "^15\.(9|10|11)$")
  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' : '5.1', 'fixed_version' : '15.9.6' },
  { 'min_version' : '15.10', 'fixed_version' : '15.10.5' },
  { 'min_version' : '15.11', 'fixed_version' : '15.11.1' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING,
    flags:{'xss':TRUE}
);