PT-2021-13384 · Google · Android

Published 2021-12-15 · Updated 2023-08-08 · CVE-2021-0978

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Low

Base vector

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

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

Description The issue is related to a side channel information disclosure in the getSerialForPackage method of DeviceIdentifiersPolicyService.java. This could allow an attacker to determine whether an app is installed without query permissions, leading to local information disclosure. No additional execution privileges are needed, and user interaction is not required for exploitation.

Recommendations For Android version Android-12, consider restricting access to the DeviceIdentifiersPolicyService.java until a patch is available. As a temporary workaround, review and limit the use of the getSerialForPackage method to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-0978

Affected Products

Android

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-0978 · Security Note
• https://osv.dev/vulnerability/CVE-2021-0978 · Vendor Advisory
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://t.me/cibsecurity/34083 · Telegram Post