Google Android 12.0 adb Shell OverlayManagerService.java executeRequest permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$5k-$25k0.00

A vulnerability was found in Google Android 12.0 (Smartphone Operating System). It has been rated as critical. This issue affects the function executeRequest of the file OverlayManagerService.java of the component adb Shell. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In executeRequest 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.Product: AndroidVersions: Android-12Android ID: A-202768292

The weakness was published 01/15/2022 as A-202768292. The advisory is shared at source.android.com. The identification of this vulnerability is CVE-2021-39630 since 08/23/2021. The exploitation is known to be easy. An attack has to be approached locally. A simple authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/19/2022). It is expected to see the exploit prices for this product increasing in the near future.MITRE ATT&CK project uses the attack technique T1222 for this issue.

Applying a patch is able to eliminate this problem.

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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-275
ATT&CK: T1222

Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: source.android.com

Timelineinfoedit

08/23/2021 CVE assigned
01/15/2022 +145 days Advisory disclosed
01/15/2022 +0 days VulDB entry created
01/19/2022 +4 days VulDB last update

Sourcesinfoedit

Vendor: https://www.google.com/

Advisory: A-202768292
Status: Confirmed

CVE: CVE-2021-39630 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfoedit

Created: 01/15/2022 08:10 AM
Updated: 01/19/2022 02:32 PM
Changes: (1) source_cve_nvd_summary
Complete: 🔍

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