PT-2021-13233 · Google · Android

Published 2021-08-01 · Updated 2021-08-24 · CVE-2021-0591

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Android versions Android-8.1 through Android-11

Description: In the sendReplyIntentToReceiver function of BluetoothPermissionActivity.java, there is a possible way to invoke privileged broadcast receivers due to a confused deputy. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.

Recommendations: For Android versions Android-8.1 through Android-11, as a temporary workaround, consider restricting access to the BluetoothPermissionActivity until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-610

Related Identifiers

ASB-A-179386960

CVE-2021-0591

Affected Products

Android

References · 8

• https://source.android.com/security/bulletin/2021-08-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0591 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0591 · Security Note
• https://osv.dev/vulnerability/ASB-A-179386960 · Vendor Advisory
• https://android.googlesource.com/platform/packages/apps/Settings/+/cdf9a1509b0ef1450b2b9b8c349abdbc7902be95 · Note
• https://android.googlesource.com/platform/packages/apps/Settings/+/f1d1bb78162209335b086ee10d8b7449879bcc64 · Note
• https://t.me/cvenotify/19549 · Telegram Post
• https://t.me/cibsecurity/27465 · Telegram Post