PT-2022-10948 · Google · Android

Published 2022-02-01 · Updated 2022-02-15 · CVE-2021-39663

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

Description In the openFileAndEnforcePathPermissionsHelper function of MediaProvider.java, there is a possible bypass of a permissions check due to a confused deputy. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android version Android-10, consider restricting access to the MediaProvider until a patch is available. As a temporary workaround, review and enforce path permissions to minimize the risk of exploitation. 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-200682135

CVE-2021-39663

Affected Products

Android

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2021-39663 · Security Note
• https://source.android.com/security/bulletin/2022-02-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-200682135 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39663 · Vendor Advisory
• https://t.me/cibsecurity/37314 · Telegram Post