Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects once discarded by an administrator.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Jenkins | Jenkins | * | 2.263.1 (including) |
| Jenkins | Jenkins | * | 2.274 (including) |
| Red Hat OpenShift Container Platform 3.11 | RedHat | jenkins-0:2.263.3.1612433584-1.el7 | * |
| Red Hat OpenShift Container Platform 4.5 | RedHat | conmon-2:2.0.21-1.rhaos4.5.el7 | * |
| Red Hat OpenShift Container Platform 4.5 | RedHat | jenkins-0:2.263.3.1612434332-1.el7 | * |
| Red Hat OpenShift Container Platform 4.5 | RedHat | machine-config-daemon-0:4.5.0-202102050524.p0.git.2594.ff3b8c0.el8 | * |
| Red Hat OpenShift Container Platform 4.5 | RedHat | openshift-0:4.5.0-202102050524.p0.git.0.9229406.el7 | * |
| Red Hat OpenShift Container Platform 4.5 | RedHat | openshift-ansible-0:4.5.0-202102031005.p0.git.0.c6839a2.el7 | * |
| Red Hat OpenShift Container Platform 4.5 | RedHat | openshift-clients-0:4.5.0-202102051529.p0.git.3612.61b096a.el7 | * |
| Red Hat OpenShift Container Platform 4.5 | RedHat | runc-0:1.0.0-72.rhaos4.5.giteadfc6b.el8 | * |
| Red Hat OpenShift Container Platform 4.6 | RedHat | jenkins-0:2.263.3.1612434510-1.el8 | * |
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.