Jenkins Enterprise and Operations Center < 2.249.31.0.1-2 / 2.277.3.1-2 Multiple Vulnerabilities (CloudBees Security Advisory 2021-04-21)

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

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

if (description)
{
  script_id(155628);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id(
    "CVE-2021-21642",
    "CVE-2021-21643",
    "CVE-2021-21644",
    "CVE-2021-21645",
    "CVE-2021-21646",
    "CVE-2021-21647"
  );

  script_name(english:"Jenkins Enterprise and Operations Center < 2.249.31.0.1-2 / 2.277.3.1-2 Multiple Vulnerabilities (CloudBees Security Advisory 2021-04-21)");

  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
2.249.31.0.1-2, or 2.x prior to 2.277.3.1-2. It is, therefore, affected by multiple vulnerabilities, including the
following:

  - Jenkins Config File Provider Plugin 3.7.0 and earlier does not configure its XML parser to prevent XML
    external entity (XXE) attacks. (CVE-2021-21642)

  - A cross-site request forgery (CSRF) vulnerability in Jenkins Config File Provider Plugin 3.7.0 and earlier
    allows attackers to delete configuration files corresponding to an attacker-specified ID. (CVE-2021-21644)

  - Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script
    Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context
    of the Jenkins controller JVM. (CVE-2021-21646)

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-2021-04-21");
  script_set_attribute(attribute:"solution", value:
"Upgrade Jenkins Enterprise or Jenkins Operations Center to version 2.249.31.0.1-2, 2.277.3.1-2 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  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:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-21646");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/04/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/04/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/19");

  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');

# Cannot determine if the version is actually the "-2" version
if ((app_info.version == '2.249.31.0.1' || app_info.version == '2.277.3.1') && app_info.Edition =~ '(Enterprise|Operations Center)' && report_paranoia < 2)
  audit(AUDIT_POTENTIAL_VULN, app_info['version'], app_info['app']);

var constraints = [
  { 'min_version' : '2.249',  'fixed_version' : '2.249.31.0.2', 'fixed_display' : '2.249.31.0.1-2', 'edition' : make_list('Enterprise', 'Operations Center') },
  { 'min_version' : '2',      'fixed_version' : '2.277.3.2',    'fixed_display' : '2.277.3.1-2',    '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:{'xsrf':TRUE}
);