IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 traditional could allow a remote attacker to obtain sensitive information with a specially-crafted sequence of serialized objects. IBM X-Force ID: 181230.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Websphere_application_server | Ibm | 7.0.0.0 (including) | 7.0.0.45 (including) |
| Websphere_application_server | Ibm | 8.0.0.0 (including) | 8.0.0.15 (including) |
| Websphere_application_server | Ibm | 8.5.0.0 (including) | 8.5.5.17 (including) |
| Websphere_application_server | Ibm | 9.0.0.0 (including) | 9.0.5.4 (including) |
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
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/181230
- https://www.ibm.com/support/pages/node/6220296
- https://www.zerodayinitiative.com/advisories/ZDI-20-690/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/181230
- https://www.ibm.com/support/pages/node/6220296
- https://www.zerodayinitiative.com/advisories/ZDI-20-690/