https://blogs.securiteam.com/index.php/archives/3171

[Maor Shwartz <maors () beyondsecurity com>]

SSD Advisory – CloudBees Jenkins Unauthenticated Code Execution
Link to the blog post: https://blogs.securiteam.com/index.php/archives/3171

Vulnerability Summary
The following advisory describes Java deserialization vulnerability found
in CloudBees Jenkins version 2.32.1 that leads to a Remote Code Execution.

Jenkins helps to automate the non-human part of the whole software
development process with now common things like continuous integration and
by empowering teams to implement the technical aspects of continuous
delivery. It is a server-based system running in a servlet container such
as Apache Tomcat. It supports version control tools, including AccuRev,
CVS, Subversion, Git, Mercurial, Perforce, Clearcase and RTC, and can
execute Apache Ant, Apache Maven and sbt based projects as well as
arbitrary shell scripts and Windows batch commands.

Credit
An independent security researcher has reported this vulnerability to
Beyond Security’s SecuriTeam Secure Disclosure program.

Vendor Response
CloudBees Jenkins has released patches to address this vulnerability and
issued CVE-2017-1000353 for the vulnerability. For more details:
https://jenkins.io/security/advisory/2017-04-26/

Due to the complexity and the use of screenshots of the vulnerability we
recommend you to read the full article on our blog -
https://blogs.securiteam.com/index.php/archives/3171
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Thanks
Maor Shwartz
GPG Key ID: 93CC36E2DE7FF514

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