A specially crafted communication packet sent to the affected devices could allow remote code execution and a denial-of-service condition due to a deserialization vulnerability. This issue affects: Mitsubishi Electric MC Works64 version 4.02C (10.95.208.31) and earlier, all versions; Mitsubishi Electric MC Works32 version 3.00A (9.50.255.02); ICONICS GenBroker64, Platform Services, Workbench, FrameWorX Server version 10.96 and prior; ICONICS GenBroker32 version 9.5 and prior.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mc_works | Mitsubishielectric | * | 10.95.208.31 (including) |
| Mc_works32 | Mitsubishielectric | 9.50.255.02 (including) | 9.50.255.02 (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.