Improper Verification of Cryptographic Signature in Apple iOS and iPadOS - CVE-2021-30773
Published: July 22, 2021
Vulnerability identifier: #VU55223
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-30773
CWE-ID: CWE-347
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Apple Inc.
Affected software:
Apple iOS
iPadOS
Apple iOS
iPadOS
Detailed vulnerability description
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to improper signature validation within the Identity Service component. A malicious application can bypass code signing checks.
How to mitigate CVE-2021-30773
Install updates from vendor's website.