PT-2021-13408 · Google · Android

Published 2021-12-15 · Updated 2022-07-12 · CVE-2021-1004

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-12

Description In the getConfiguredNetworks method of WifiServiceImpl.java, there is a possible way to determine whether an app is installed without query permissions due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android version Android-12, consider restricting access to the getConfiguredNetworks method of WifiServiceImpl.java to minimize the risk of exploitation until a patch is available. As a temporary workaround, review and adjust permission settings to ensure that apps cannot bypass query permissions.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-1004

Affected Products

Android

References · 5

• https://osv.dev/vulnerability/CVE-2021-1004 · Vendor Advisory
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1004 · Security Note
• https://t.me/cibsecurity/34061 · Telegram Post
• https://t.me/cvenotify/24660 · Telegram Post