PT-2022-10984 · Google · Android

Published 2022-03-01 · Updated 2022-03-23 · CVE-2021-39703

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 updateState function of UsbDeviceManager.java, there is a possible unauthorized access of files due to a confused deputy. 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 sensitive files until a patch is available. As a temporary workaround, review and limit the use of the updateState function in UsbDeviceManager.java 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-207057578

CVE-2021-39703

Affected Products

Android

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-39703 · Security Note
• https://source.android.com/security/bulletin/2022-03-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39703 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-207057578 · Vendor Advisory
• https://android.googlesource.com/platform/frameworks/base/+/54f4c1843d4d41fb784f416575ec8b9857e3d195 · Note
• https://t.me/cibsecurity/39078 · Telegram Post