CVE-2021-0306
First published: Mon Jan 04 2021(Updated: )
In addAllPermissions of PermissionManagerService.java, there is a possible permissions bypass when upgrading major Android versions which allows an app to gain the android.permission.ACTIVITY_RECOGNITION permission without user confirmation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-11, Android-8.0, Android-8.1, Android-9, Android-10; Android ID: A-154505240.
Credit: security@android.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Android | ||
| Android | =8.0 | |
| Android | =8.1 | |
| Android | =9.0 | |
| Android | =10.0 | |
| Android | =11.0 |
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Reference Links
- https://source.android.com/security/bulletin/2021-01-01
- https://android.googlesource.com/platform/frameworks/base/+/03da463b2a94c36e3b46f0a110ec43710b82d404
- https://android.googlesource.com/platform/frameworks/base/+/c4ce178c261e6a2dc1aa4c1e1d570f0efd980e47
- https://source.android.com/docs/security/bulletin/2021-01-01 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-0306?
CVE-2021-0306 is classified as a high severity vulnerability.
How do I fix CVE-2021-0306?
To fix CVE-2021-0306, update your Android device to a version that contains the security patch addressing this vulnerability.
Which Android versions are affected by CVE-2021-0306?
CVE-2021-0306 affects Android versions 8.0, 8.1, 9.0, 10.0, and 11.0.
What type of vulnerability is CVE-2021-0306?
CVE-2021-0306 is a permissions bypass vulnerability that allows an app to obtain certain permissions without user consent.
What could be a potential consequence of CVE-2021-0306?
CVE-2021-0306 could lead to local escalation of privilege, enabling unauthorized access to activity recognition features.
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