PT-2021-13329 · Google · Android

Published 2021-10-01 · Updated 2022-07-12 · CVE-2021-0705

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-11

Description The issue is related to the sanitizeSbn function in NotificationManagerService.java, which allows a service to run in the foreground and maintain granted permissions due to a bypass of background service restrictions. This could lead to a local escalation of privilege without requiring additional execution privileges. User interaction is not necessary for exploitation.

Recommendations For Android versions Android-10 through Android-11, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

ASB-A-185388103

CVE-2021-0705

Affected Products

Android

References · 6

• https://source.android.com/security/bulletin/2021-10-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0705 · Security Note
• https://osv.dev/vulnerability/ASB-A-185388103 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0705 · Vendor Advisory
• https://t.me/cibsecurity/31035 · Telegram Post
• https://android.googlesource.com/platform/frameworks/base/+/4eba7e65cd0cc2f2c87b001fb34b9f28ee7c70ab · Note