Akamai researchers have published a PoC exploit for a critical vulnerability (CVE-2022-34689) in Windows CryptoAPI, which validates public key certificates. “An attacker could manipulate an existing public x.509 certificate to spoof their identity and perform actions such as authentication or code signing as the targeted certificate,” Microsoft said in October 2022, when they announced fixes for vulnerable Windows and Windows Server versions.

Read full article on Help Net Security