ESC4 Active Directory Certificate Services Vulnerability is a high-risk vulnerability in Active Directory Certificate Services (ADCS) that enables attackers to exploit misconfigured certificate template permissions (e.g., Write, GenericAll, WriteDACL). This flaw serves as a critical entry point for a certificate attack. By modifying vulnerable templates, attackers can issue authentication certificates with Client or Server Authentication […]
ADCS ESC3: Enrollment Agent Template
Active Directory Certificate Services (ADCS) is commonly targeted in ESC3 certificate attacks, which exploit misconfigurations in certificate templates to enable serious vulnerabilities such as ADCS certificate attacks and privilege escalation. ESC3, in particular, poses a significant threat when combined with a misconfigured Certificate Request Agent (CRA) template. This flaw allows attackers to request certificates for […]
AD Certificate Exploitation: ESC2
In the last article of this AD CS series, we looked at how ESC1 can be used to gain higher privileges in Active Directory. In this post, we’ll explain AD CS ESC2 Certificate Exploitation, where a low-level user can request an “Any Purpose” certificate. This weak setup lets attackers get certificates for other users, which […]
AD Certificate Exploitation: ESC1
AD CS ESC1 Certificate Exploitation is a critical vulnerability in Active Directory Certificate Services. In this article, we will explores how misconfigured certificate templates can lead to privilege escalation. Additonally, we will cover various exploitation techniques. The AD CS (Active Directory Certificate Services) certificate template is a predefined configuration in Microsoft AD CS that defines […]