Really excited to share this piece of research from @TomerPeled92 and @yoni.
The two managed to sophisticatedly exploit an MD5 collision vulnerability in CryptoAPI (disclosed by the NSA & NCSC).
Our blog details everything from root cause to exploitation:
https://akamai.com/blog/security-research/exploiting-critical-spoofing-vulnerability-microsoft-cryptoapi
Link to PoC and demo: https://github.com/akamai/akamai-security-research/tree/main/PoCs/CVE-2022-34689