Jenkins Enterprise and Operations Center < 2.249.33.0.1 / 2.277.42.0.1 / 2.303.2.5 Multiple Vulnerabilities (CloudBees Security Advisory 2021-10-06)

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

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

if (description)
{
  script_id(155661);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/22");

  script_cve_id(
    "CVE-2014-3577",
    "CVE-2021-21682",
    "CVE-2021-21683",
    "CVE-2021-21684"
  );

  script_name(english:"Jenkins Enterprise and Operations Center < 2.249.33.0.1 / 2.277.42.0.1 / 2.303.2.5 Multiple Vulnerabilities (CloudBees Security Advisory 2021-10-06)");

  script_set_attribute(attribute:"synopsis", value:
"A job scheduling and management system hosted on the remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Jenkins Enterprise or Jenkins Operations Center running on the remote web server is 2.249.x prior to
2.249.33.0.1, 2.277.x prior to 2.277.42.0.1, or 2.x prior to 2.303.2.5. It is, therefore, affected by multiple
vulnerabilities, including the following:

  - org.apache.http.conn.ssl.AbstractVerifier in Apache HttpComponents HttpClient before 4.3.5 and
    HttpAsyncClient before 4.0.2 does not properly verify that the server hostname matches a domain name in
    the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows
    man-in-the-middle attackers to spoof SSL servers via a 'CN=' string in a field in the distinguished name
    (DN) of a certificate, as demonstrated by the 'foo,CN=www.apache.org' string in the O field.
    (CVE-2014-3577)

  - Jenkins 2.314 and earlier, LTS 2.303.1 and earlier accepts names of jobs and other entities with a
    trailing dot character, potentially replacing the configuration and data of other entities on Windows.
    (CVE-2021-21682)

  - The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files
    as absolute on Windows, resulting in a path traversal vulnerability allowing attackers with Overall/Read
    permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of
    arbitrary files. (CVE-2021-21683)

Note that Nessus has not tested for these issues 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-2021-10-06");
  script_set_attribute(attribute:"solution", value:
"Upgrade Jenkins Enterprise or Jenkins Operations Center to version 2.249.33.0.1, 2.277.42.0.1, 2.303.2.5, or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/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:L/UI:N/S:U/C:H/I:N/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-2014-3577");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-21683");

  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:"2021/10/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/10/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/22");

  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) 2021-2023 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' : '2.249',  'fixed_version' : '2.249.33.0.1', 'edition' : make_list('Enterprise', 'Operations Center') },
  { 'min_version' : '2.277',  'fixed_version' : '2.277.42.0.1', 'edition' : make_list('Enterprise', 'Operations Center') },
  { 'min_version' : '2',      'fixed_version' : '2.303.2.5',    'edition' : make_list('Enterprise', 'Operations Center'), 'rolling_train' : TRUE },
];

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