PT-2021-13155 · Google · Android

Published 2021-06-01 · Updated 2022-07-12 · CVE-2021-0505

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: The issue is related to a missing permission check in the Settings app, which could allow disabling an always-on VPN. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations: For Android version Android-11, consider restricting access to the Settings app until a patch is available. As a temporary workaround, avoid using the always-on VPN feature in the affected versions until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

ASB-A-179975048

CVE-2021-0505

Affected Products

Android

References · 6

• https://source.android.com/security/bulletin/2021-06-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0505 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0505 · Security Note
• https://osv.dev/vulnerability/ASB-A-179975048 · Vendor Advisory
• https://android.googlesource.com/platform/packages/apps/Settings/+/735a216da31d8440d23fed4355521013ead630f3 · Note
• https://t.me/cvenotify/16699 · Telegram Post