| description | The version of Jenkins running on the remote web server is prior to 2.172 or is a version of Jenkins LTS prior to 2.164.2. It is, therefore, affected by multiple vulnerabilities: - An authentication bypass condition exists due to an incomplete fix for SECURITY-901, in which existing remote-based CLI authentication caches. An unauthenticated, remote attacker can exploit this to bypass existing Access Control Limitations and appear as an authenticated user. (CVE-2019-1003049) - A cross-site scripting (XSS) vulnerability exists due to improper validation of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to click a specially crafted URL, to execute arbitrary script code in a user |
| code | #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(124168);
script_version("1.3");
script_cvs_date("Date: 2019/10/30 13:24:46");
script_cve_id(
"CVE-2019-1003049",
"CVE-2019-1003050"
);
script_bugtraq_id(
107889,
107901
);
script_name(english:"Jenkins < 2.164.2 LTS / 2.172 Multiple Vulnerabilities");
script_summary(english:"Checks the Jenkins version.");
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 running on the remote web server is prior to 2.172 or is a version of Jenkins LTS prior to
2.164.2. It is, therefore, affected by multiple vulnerabilities:
- An authentication bypass condition exists due to an incomplete fix for SECURITY-901, in which existing
remote-based CLI authentication caches. An unauthenticated, remote attacker can exploit this to bypass
existing Access Control Limitations and appear as an authenticated user. (CVE-2019-1003049)
- A cross-site scripting (XSS) vulnerability exists due to improper validation of user-supplied input before
returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to click
a specially crafted URL, to execute arbitrary script code in a user's browser session. (CVE-2019-1003050)
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://jenkins.io/security/advisory/2019-04-10/");
script_set_attribute(attribute:"solution", value:
"Upgrade Jenkins to version 2.172 or later, Jenkins LTS to version 2.164.2 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/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:H/PR:N/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-2019-1003049");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/10");
script_set_attribute(attribute:"patch_publication_date", value:"2019/04/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/18");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:cloudbees:jenkins");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("jenkins_detect.nasl");
script_require_ports("Services/www", 8080);
script_require_keys("www/Jenkins");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('http.inc');
include('vcf.inc');
port = get_http_port(default:8080);
app = vcf::get_app_info(app:'Jenkins', webapp:TRUE, port:port);
if(app['LTS'])
constraints = [{'fixed_version' : '2.164.2', 'fixed_display' : '2.164.2 LTS / 2.172'}];
else
constraints = [{'fixed_version' : '2.172', 'fixed_display' : '2.164.2 LTS / 2.172'}];
vcf::check_version_and_report(app_info:app, constraints:constraints, severity:SECURITY_WARNING, strict:FALSE);
|