Intel AMT authentication bypass example: This is a Proof-of-Concept code that demonstrates the exploitation of the CVE-2017-5689 vulnerability. It is essentialy a mitmproxy script that simply blanks an Authorization header “response” field. Example usage:

mitmdump -p 8080 -dd –no-http2 -s blank_auth_res

https://github.com/embedi/amt_auth_bypass_poc

Look here for presentation and white paper links:
https://www.embedi.com/news/intel-amt-some-new-stealth-vector-attacks-and-good-old-vulnerabilities