An elevation of privilege vulnerability in the Android framework (gatekeeperresponse). Product: Android. Versions: 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0. Android ID: A-62998805.
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 | 6.0 (including) | 6.0 (including) | |
| Android | 6.0.1 (including) | 6.0.1 (including) | |
| Android | 7.0 (including) | 7.0 (including) | |
| Android | 7.1.0 (including) | 7.1.0 (including) | |
| Android | 7.1.1 (including) | 7.1.1 (including) | |
| Android | 7.1.2 (including) | 7.1.2 (including) | |
| Android | 8.0 (including) | 8.0 (including) | |
| Android | Ubuntu | esm-apps/xenial | * |
| Android | Ubuntu | trusty | * |
| Android | Ubuntu | xenial | * |
| Android | Ubuntu | zesty | * |
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
- http://www.securityfocus.com/bid/101086
- https://android.googlesource.com/platform/frameworks/base/+/b87c968e5a41a1a09166199bf54eee12608f3900
- https://source.android.com/security/bulletin/2017-10-01
- http://www.securityfocus.com/bid/101086
- https://android.googlesource.com/platform/frameworks/base/+/b87c968e5a41a1a09166199bf54eee12608f3900
- https://source.android.com/security/bulletin/2017-10-01