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Jenkins XStream Groovy classpath Deserialization Vulnerability

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Jenkins XStream Groovy classpath Deserialization Vulnerability

Disclosed
02/24/2016
Created
06/14/2018

Description

This module exploits CVE-2016-0792 a vulnerability in Jenkins versions older than 1.650 and Jenkins LTS versions older than 1.642.2 which is caused by unsafe deserialization in XStream with Groovy in the classpath, which allows remote arbitrary code execution. The issue affects default installations. Authentication is not required to exploit the vulnerability.

Author(s)

  • Arshan Dabirsiaghi
  • Matt Byrne <attackdebris@gmail.com>

Platform

Linux,Unix,Windows

Architectures

cmd, python, x86, x64

Development

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/multi/http/jenkins_xstream_deserialize
msf exploit(jenkins_xstream_deserialize) > show targets
    ...targets...
msf exploit(jenkins_xstream_deserialize) > set TARGET < target-id >
msf exploit(jenkins_xstream_deserialize) > show options
    ...show and set options...
msf exploit(jenkins_xstream_deserialize) > exploit

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security

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