cve/2023/CVE-2023-20921.md

### [CVE-2023-20921](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20921)
![](https://img.shields.io/static/v1?label=Product&message=Android&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Elevation%20of%20privilege&color=brighgreen)

### Description

In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12L Android-13Android ID: A-243378132

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Trinadh465/frameworks_base_android-6.0.1_r22_CVE-2023-20921
- https://github.com/nidhi7598/frameworks_base_AOSP_10_r33_CVE-2023-20921
- https://github.com/nomi-sec/PoC-in-GitHub