CVE-2017-2608

Jenkins before versions 2.44, 2.32.2 is vulnerable to a remote code execution vulnerability involving the deserialization of various types in javax.imageio in XStream-based APIs (SECURITY-383).

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• http://www.securityfocus.com/bid/95953
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2608
• https://github.com/jenkinsci/jenkins/commit/a814154695e23dc37542af7d40cacc129cf70722
• https://jenkins.io/security/advisory/2017-02-01/
• http://www.securityfocus.com/bid/95953
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2608
• https://github.com/jenkinsci/jenkins/commit/a814154695e23dc37542af7d40cacc129cf70722
• https://jenkins.io/security/advisory/2017-02-01/