I recently completed the “Certificate” challenge on Hack The Box: after extracting and cracking a captured authentication hash I gained access to a user account (lion.sk) and retrieved the user flag, then progressed to full system compromise by responsibly exploiting weak certificate‑based authentication controls—obtaining and converting certificate material into elevated credentials to capture the root flag. The exercise reinforced how misconfigurations in certificate services and poor time synchronization can create powerful escalation paths, and highlighted the importance of least‑privilege, strict enrollment policies, and monitoring certificate issuance. Great hands‑on reminder that defensive hygiene around PKI and identity services matters.
#CyberSecurity #HTB #Infosec #ADCS #Certificates #PrivilegeEscalation #RedTeam #Pentesting
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