PT-2022-10978 · Google · Android

Published 2022-03-01 · Updated 2022-03-23 · CVE-2021-39695

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-11

Description A logic error in the createOrUpdate function of BasePermission.java can lead to a permission bypass, potentially resulting in local escalation of privilege. This issue requires User execution privileges and does not need user interaction for exploitation.

Recommendations For Android version Android-11, consider restricting access to the createOrUpdate function of BasePermission.java until a patch is available. As a temporary workaround, review and adjust permission settings to minimize the risk of exploitation.

Fix

Improper Preservation of Permissions

Weakness Enumeration

CWE-281

Related Identifiers

ASB-A-209607944

CVE-2021-39695

Affected Products

Android

References · 6

• https://osv.dev/vulnerability/CVE-2021-39695 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39695 · Security Note
• https://source.android.com/security/bulletin/2022-03-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-209607944 · Vendor Advisory
• https://t.me/cibsecurity/39072 · Telegram Post
• https://android.googlesource.com/platform/frameworks/base/+/b5efdf729385cc54f225496d3ba20f1cb5b68250 · Note