PT-2021-13279 · Google · Android

Published 2021-10-22 · Updated 2022-01-21 · CVE-2021-0643

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Android versions Android-10 through Android-12

Description In the getAllSubInfoList function of SubscriptionController.java, a missing permission check allows for the retrieval of a long-term identifier without the correct permissions. This could lead to local information disclosure, requiring User execution privileges. No user interaction is needed for exploitation.

Recommendations For Android versions Android-10 through Android-12, apply the necessary permission checks to the getAllSubInfoList function in SubscriptionController.java to prevent unauthorized access to long-term identifiers. As a temporary workaround, consider restricting access to sensitive information handled by the SubscriptionController.java until a proper fix is implemented.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

ASB-A-183612370

CVE-2021-0643

Affected Products

Android

References · 6

• https://osv.dev/vulnerability/CVE-2021-0643 · Vendor Advisory
• https://source.android.com/security/bulletin/2022-01-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0643 · Security Note
• https://osv.dev/vulnerability/ASB-A-183612370 · Vendor Advisory
• https://t.me/cibsecurity/31039 · Telegram Post
• https://android.googlesource.com/platform/frameworks/opt/telephony/+/f6bb9b20840c29e74a37ea2b880e63b3fc9470ff · Note