Reine Roque

From Misconfigured Spring Boot Actuator to SharePoint Exfiltration: How Stolen Credentials Bypass MFA

Not every cloud breach starts with malware or a zero-day. In this incident, attackers discovered an exposed Spring Boot Actuator endpoint, harvested credentials from leaked configuration data, then used the OAuth2 Resource Owner Password Credentials (ROPC) flow to authenticate without MFA.

Ryan Soliven, Jovit Samaniego, Reine Roque