Jenkins < 2.164.2 LTS / 2.172 Multiple Vulnerabilities

high Nessus Plugin ID 124168

Synopsis

A job scheduling and management system hosted on the remote web server is affected by multiple vulnerabilities.

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'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.

Solution

Upgrade Jenkins to version 2.172 or later, Jenkins LTS to version 2.164.2 or later.

See Also

https://jenkins.io/security/advisory/2019-04-10/

Plugin Details

Severity: High

ID: 124168

File Name: jenkins_2_172.nasl

Version: 1.5

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 4/18/2019

Updated: 4/11/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-1003049

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cloudbees:jenkins

Required KB Items: installed_sw/Jenkins

Exploit Ease: No known exploits are available

Patch Publication Date: 4/10/2019

Vulnerability Publication Date: 4/10/2019

Reference Information

CVE: CVE-2019-1003049, CVE-2019-1003050

BID: 107889, 107901