GHSA-26wc-3wqp-g3rp

Deserialization of Untrusted Data in Jenkins

Description

Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution. An unauthenticated remote code execution vulnerability allowed attackers to transfer a serialized Java `SignedObject` object to the Jenkins CLI, that would be deserialized using a new `ObjectInputStream`, bypassing the existing blacklist-based protection mechanism. We're fixing this issue by adding `SignedObject` to the blacklist. We're also backporting the new HTTP CLI protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the remoting-based (i.e. Java serialization) CLI protocol, disabling it by default.

Affected packages

References

• https://nvd.nist.gov/vuln/detail/CVE-2017-1000353 ADVISORY
• https://github.com/jenkinsci/jenkins/commit/36b8285a41eb28333549e8d851f81fd80a184076 WEB
• https://github.com/jenkinsci/jenkins/commit/f237601afd750a0eaaf961e8120b08de238f2c3f WEB
• https://github.com/jenkinsci/jenkins PACKAGE
• https://jenkins.io/security/advisory/2017-04-26 WEB
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-1000353 WEB
• https://www.exploit-db.com/exploits/41965 WEB
• https://www.oracle.com/security-alerts/cpuapr2022.html WEB
• http://packetstormsecurity.com/files/159266/Jenkins-2.56-CLI-Deserialization-Code-Execution.html WEB
• http://www.securityfocus.com/bid/98056 WEB

Sources