PT-2023-17812 · Google · Android

Published 2023-03-24 · Updated 2023-03-29 · CVE-2023-21021

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 version Android-13

Description In the isTargetSdkLessThanQOrPrivileged function of WifiServiceImpl.java, there is a possible way for the guest user to change admin user network settings 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-13, consider restricting access to the WifiServiceImpl.java until a patch is available. As a temporary workaround, restrict the guest user's ability to modify network settings to minimize the risk of exploitation.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2023-21021

Affected Products

Android

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2023-21021 · Security Note
• https://osv.dev/vulnerability/CVE-2023-21021 · Vendor Advisory
• https://source.android.com/security/bulletin/pixel/2023-03-01 · Vendor Advisory
• https://t.me/cvenotify/46830 · Telegram Post
• https://t.me/cibsecurity/60690 · Telegram Post