PT-2020-11814 · Google · Android

Published 2020-12-15 · Updated 2020-12-16 · CVE-2020-0479

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Android versions Android-11

Description The issue is related to a possible permissions bypass in the callUnchecked method of DocumentsProvider.java. This could lead to local escalation of privilege, allowing a malicious app to access files available to the DocumentProvider without user permission. No additional execution privileges are needed, but user interaction is required for exploitation.

Recommendations For Android version Android-11, consider restricting access to the DocumentsProvider until a patch is available. As a temporary workaround, avoid using the callUnchecked method in DocumentsProvider.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.

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2020-0479

Affected Products

Android

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2020-0479 · Security Note
• https://osv.dev/vulnerability/CVE-2020-0479 · Vendor Advisory
• https://source.android.com/security/bulletin/pixel/2020-12-01 · Vendor Advisory
• https://t.me/cvenotify/7172 · Telegram Post
• https://t.me/cvenotify/7121 · Telegram Post