PT-2022-11027 · Google · Android

Published 2022-03-30 · Updated 2022-07-12 · CVE-2021-39749

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 prior to the fixed version

Description The issue is related to a missing permission check in the WindowManager, allowing non-exported and protected activities to be started. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android versions prior to the fixed version, consider restricting access to protected activities until a patch is available. As a temporary workaround, review and enforce strict permission checks on activities to minimize the risk of exploitation.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-39749

Affected Products

Android

References · 4

• 🔥 https://github.com/michalbednarski/OrganizerTransaction · Exploit
• https://osv.dev/vulnerability/CVE-2021-39749 · Vendor Advisory
• https://source.android.com/security/bulletin/android-12l · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39749 · Security Note