In run of ChooseTypeAndAccountActivity.java, there is a possible escalation of privilege due to unsafe deserialization. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12L Android-13Android ID: A-244154558
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Android | 10.0 (including) | 10.0 (including) | |
| Android | 11.0 (including) | 11.0 (including) | |
| Android | 12.0 (including) | 12.0 (including) | |
| Android | 12.1 (including) | 12.1 (including) | |
| Android | 13.0 (including) | 13.0 (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.