Trimarc: Kerberos Bronze Bit Attack (CVE-2020-17049) Scenarios to Potentially Compromise Active Directory
On December 10, NetSPI Security Consultant Jake Karnes was featured in Trimarc:
Jake Karnes (@jakekarnes42) with NetSPI published 3 articles (that’s right 3!) describing a new attack against Microsoft’s Kerberos implementation in Active Directory. He posted an Overview article, describing how the attack works, an Attack article on practical exploitation, and if you need further background on Kerberos, a Theory article.
This article attempts to summarize the key details of the attack and provide some expanded information and potential attack scenarios, including how Active Directory could be compromised leveraging this attack method.