Main Vulnerability Database Vulnerabilities #VU63271

Cryptographic issues in macOS - CVE-2022-26766

Published: May 16, 2022 / Updated: July 3, 2022

Vulnerability identifier: #VU63271

CSH Severity: Low

CVSS v4: 8.5 [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]

CVE-ID: CVE-2022-26766

CWE-ID: CWE-310

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local application to bypass signature validation.

The vulnerability exists due to a certificate parsing issue in the Security subsystem. A local application can bypass signature validation.

Affected software

macOS
watchOS
Apple iOS
iPadOS
tvOS

How to mitigate CVE-2022-26766

Install updates from vendor's website.

macOS - addressed in versions 12.4 21F79, 10.15.7 19H1922, 11.6.6 20G624
watchOS - update to 8.6 19T572
Apple iOS - update to 15.5 19F77
iPadOS - update to 15.5 19F77
tvOS - update to 15.5 19L570

Links to Public Exploits and PoC-codes

Exploit #8101 - CoreTrustDemo (Proof-of-concept for CVE-2022-26766 on macOS 12.3.1) (July 3, 2022)

External References

https://support.apple.com/en-us/HT213257