An issue in Nacos Group Nacos Spring Project v.1.1.1 and before allows a remote attacker to execute arbitrary code via the SnakeYamls Constructor() component.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name |
Vendor |
Start Version |
End Version |
| Nacos_spring_project |
Alibabacloud |
* |
1.1.1 (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.
References