PT-2022-11060 · Google · Android

Published 2022-03-30 · Updated 2022-04-05 · CVE-2021-39782

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-12L

Description In Telephony, there is a possible unauthorized modification of the PLMN SIM file 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-12L, consider restricting access to the Telephony component to minimize the risk of exploitation until a patch is available. As a temporary workaround, disabling the modification of the PLMN SIM file could prevent unauthorized changes. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2021-39782

Affected Products

Android

References · 4

• https://osv.dev/vulnerability/CVE-2021-39782 · Vendor Advisory
• https://source.android.com/security/bulletin/android-12l · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39782 · Security Note
• https://t.me/cibsecurity/39858 · Telegram Post