Jenkins Enterprise and Operations Center < 2.222.43.0.2 / 2.249.30.0.2 / 2.263.2.3 Arbitrary File Read (CloudBees Security Advisory 2021-01-26)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(155841);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2021-21615");

  script_name(english:"Jenkins Enterprise and Operations Center < 2.222.43.0.2 / 2.249.30.0.2 / 2.263.2.3 Arbitrary File Read (CloudBees Security Advisory 2021-01-26)");

  script_set_attribute(attribute:"synopsis", value:
"A job scheduling and management system hosted on the remote web server is affected by an arbitrary file read vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Jenkins Enterprise or Jenkins Operations Center running on the remote web server is 2.222.x prior to
2.222.43.0.2, 2.249.x prior to 2.249.30.0.2, or 2.x prior to 2.263.2.3. It is, therefore, affected by an arbitrary file
read vulnerability due to a time-of-check to time-of-use (TOCTOU) race condition. An authenticated, remote attacker can
exploit this, via the workspace browser, to access files outside workspaces.

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://www.cloudbees.com/cloudbees-security-advisory-2021-01-26");
  script_set_attribute(attribute:"solution", value:
"Upgrade Jenkins Enterprise or Jenkins Operations Center to version 2.222.43.0.2, 2.249.30.0.2, 2.263.2.3 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:H/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-2021-21615");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/01/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/01/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/03");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cloudbees:jenkins");
  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) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("jenkins_detect.nasl", "jenkins_win_installed.nbin", "jenkins_nix_installed.nbin", "macosx_jenkins_installed.nbin");
  script_require_keys("installed_sw/Jenkins");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

var app_info = vcf::combined_get_app_info(app:'Jenkins');

var constraints = [
  { 'min_version' : '2.222',  'fixed_version' : '2.222.43.0.2', 'edition' : make_list('Enterprise', 'Operations Center') },
  { 'min_version' : '2.249',  'fixed_version' : '2.249.30.0.2', 'edition' : make_list('Enterprise', 'Operations Center') },
  { 'min_version' : '2',      'fixed_version' : '2.263.2.3',    'edition' : make_list('Enterprise', 'Operations Center'), 'rolling_train' : TRUE },
];

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