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5.5

Android can expose device accounts without permission

CVE-2021-0704 · published 4 years ago
Summary

The Android system code that handles account notifications may allow anyone on the device to list user accounts without needing the usual permission. This could let a malicious app see who is signed in, potentially revealing personal data. Update the device to the latest security patches or apply vendor updates that fix the account handling logic.

What to do
  • Update google platform/frameworks/base to version 9:2021-12-01.
  • Update google platform/frameworks/base to version 10:2021-12-01.
  • Update google platform/frameworks/base to version 11:2021-12-01.
Affected software
Ecosystem VendorProductAffected versions
Android google platform/frameworks/base >= 9:0, < 9:2021-12-01
>= 10:0, < 10:2021-12-01
>= 11:0, < 11:2021-12-01
Fix: upgrade to 9:2021-12-01
– google android 9.0
10.0
11.0
cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:*
Original advisory text
In createNoCredentialsPermissionNotification and related functions of AccountManagerService.java, there is a possible way to retrieve accounts from the device without permissions due to a permissio...
In createNoCredentialsPermissionNotification and related functions of AccountManagerService.java, there is a possible way to retrieve accounts from the device without permissions due to a permissions bypass. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
References
Severity
5.5 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-281Improper Preservation of Permissions
Timeline
Published1 Dec 2021
Updated26 Oct 2026
First seen10 Sep 2026
Sources
ASB-A-179338675 · OSV
CVE-2021-0704 · NVD
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