PT-2022-11081 · Google · Android

Published 2022-04-01 · Updated 2022-07-12 · CVE-2021-39808

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-10 through Android-12

Description The issue is related to improper input validation in the createNotificationChannelGroup function of PreferencesHelper.java. This could allow a service to run in the foreground without notifying the user, potentially leading to local escalation of privilege. No additional execution privileges are needed, and user interaction is not required for exploitation.

Recommendations For Android versions Android-10 through Android-12, consider restricting the use of the createNotificationChannelGroup function in PreferencesHelper.java until a proper fix is applied to prevent services from running in the foreground without user notification.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

ASB-A-209966086

CVE-2021-39808

Affected Products

Android

References · 5

• https://osv.dev/vulnerability/ASB-A-209966086 · Vendor Advisory
• https://source.android.com/security/bulletin/2022-04-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39808 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39808 · Vendor Advisory
• https://android.googlesource.com/platform/frameworks/base/+/45b4a71f5cc366c338c1ceb217a602960fd31401 · Note