Auth bypass in Google Android
CVE-2021-0521
In getAllPackages of PackageManagerService, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure of cross-user permissions with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-174661955
Vulnerability class: Broken Access Control
EPSS: 0.001 (1.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Google Android — versions 8.1, 9.0, 10.0
- N/a Android — versions Android-11 Android-8.1 Android-9 Android-10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-0521?
- CVE-2021-0521 is a medium-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 5.5/10. Published 2021-06-21.
- How severe is CVE-2021-0521?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-0521 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.