The 2021 Pwnie Winner For Best Cryptographic Attack

NSA/CVE-2020-0601

Publication Citation: None (see link)

Researcher Names: None

Link: https://media.defense.gov/2020/Jan/14/2002234275/-1/-1/0/CSA-WINDOWS-10-CRYPT-LIB-20190114.PDF

NSA discovered a bug in the verification of signatures in Windows which breaks the certificate trust chain.  This is the first time a crypto bug had real world impact, and NSA disclosed it through the vulnerability equities process (VEP).