Arch Linux Security Advisory ASA-201904-7
========================================
Severity: Medium
Date    : 2019-04-11
CVE-ID  : CVE-2019-1003049 CVE-2019-1003050
Package : jenkins
Type    : multiple issues
Remote  : Yes
Link    : https://security.archlinux.org/AVG-948

Summary
======
The package jenkins before version 2.172-1 is vulnerable to multiple
issues including access restriction bypass and cross-site scripting.

Resolution
=========
Upgrade to 2.172-1.

# pacman -Syu "jenkins>=2.172-1"

The problems have been fixed upstream in version 2.172.

Workaround
=========
None.

Description
==========
- CVE-2019-1003049 (access restriction bypass)

A security issue has been found in Jenkins before 2.172, where the fix
for SECURITY-901 in Jenkins 2.150.2 and 2.160 did not reject existing
remoting-based CLI authentication caches. This means that users who
cached their CLI authentication before Jenkins was updated to 2.150.2
and newer, or 2.160 and newer, would remain authenticated.

- CVE-2019-1003050 (cross-site scripting)

The f:validateButton form control for the Jenkins UI did not properly
escape job URLs. This resulted in a cross-site scripting (XSS)
vulnerability exploitable by users with the ability to control job
names.

Impact
=====
A remote attacker is able to bypass access restrictions or perform
cross-site scripting.

References
=========
https://seclists.org/oss-sec/2019/q2/15
https://www.jenkins.io/security/advisory/2019-04-10/
https://security.archlinux.org/CVE-2019-1003049
https://security.archlinux.org/CVE-2019-1003050