5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.2 Medium
AI Score
Confidence
Low
0.004 Low
EPSS
Percentile
74.9%
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.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(155661);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");
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_set_attribute(attribute:"enable_cgi_scanning", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2021-2024 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}
);
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.2 Medium
AI Score
Confidence
Low
0.004 Low
EPSS
Percentile
74.9%