PT-2023-17706 · Google · Android

Published 2023-01-01 · Updated 2023-02-01 · CVE-2023-20916

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 through Android-12L

Description A possible way to bypass restrictions on starting activities from the background exists due to a missing permission check in the getMainActivityLaunchIntent function of LauncherAppsService.java. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android versions Android-12 through Android-12L, consider restricting the use of the getMainActivityLaunchIntent function in LauncherAppsService.java until a patch is available. As a temporary workaround, review and enforce permission checks for starting activities from the background to minimize the risk of exploitation.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

ASB-A-229256049

CVE-2023-20916

Affected Products

Android

References · 5

• https://osv.dev/vulnerability/ASB-A-229256049 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-20916 · Security Note
• https://source.android.com/security/bulletin/2023-01-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-20916 · Vendor Advisory
• https://android.googlesource.com/platform/frameworks/base/+/f4ed441e180d7113b5f6ebfe711e61a2dd3fd8b1 · Note