Unsafe deserialization of untrusted JSON allows execution of arbitrary code on affected releases of the Illumio PCE. Authentication to the API is required to exploit this vulnerability. The flaw exists within the network_traffic API endpoint. An attacker can leverage this vulnerability to execute code in the context of the PCE’s operating system user.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Core_policy_compute_engine | Illumio | * | 19.3.7 (excluding) |
| Core_policy_compute_engine | Illumio | 21.2.0 (including) | 21.2.8 (excluding) |
| Core_policy_compute_engine | Illumio | 21.5.0 (including) | 21.5.36 (excluding) |
| Core_policy_compute_engine | Illumio | 22.2.0 (including) | 22.2.42 (excluding) |
| Core_policy_compute_engine | Illumio | 22.5.0 (including) | 22.5.31 (excluding) |
| Core_policy_compute_engine | Illumio | 23.2.0 (including) | 23.2.11 (excluding) |
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.