SSD Advisory – CloudBees Jenkins Unauthenticated Code Execution

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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/

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