PT-2022-10938 · Google · Android

Published 2022-01-01 · Updated 2022-07-12 · CVE-2021-39630

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Android versions Android-12

Description In the executeRequest method of OverlayManagerService.java, there is a possible way to control fabricated overlays from adb shell due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android version Android-12, consider restricting access to the OverlayManagerService until a patch is available. As a temporary workaround, avoid using the executeRequest method in OverlayManagerService.java to minimize the risk of exploitation.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

ASB-A-202768292

CVE-2021-39630

Affected Products

Android

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-39630 · Security Note
• https://source.android.com/security/bulletin/2022-01-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-202768292 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39630 · Vendor Advisory
• https://t.me/cibsecurity/35620 · Telegram Post
• https://android.googlesource.com/platform/frameworks/base/+/b2dc041a4e84986e3a6932b127d3a18ef02b6d0a · Note