CVE-2020-28942

An issue exists in PrimeKey EJBCA before 7.4.3 when enrolling with EST while proxied through an RA over the Peers protocol. As a part of EJBCA's domain security model, the peer connector allows the restriction of client certificates (for the RA, not the end user) to a limited set of allowed CAs, thus restricting the accessibility of that RA to the rights it has within a specific role. While this works for other protocols such as CMP, it was found that the EJBCA enrollment over an EST implementation bypasses this check, allowing enrollment with a valid client certificate through any functioning and authenticated RA connected to the CA. NOTE: an attacker must already have a trusted client certificate and authorization to enroll against the targeted CA.

• CWE-295

• https://support.primekey.com/news/posts/40Vendor Advisory
• https://support.primekey.com/news/posts/40Vendor Advisory

Published

Nov 19, 2020

Last Modified

Jun 17, 2026

Status

Modified

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