CVE-2018-21246
Description
When Caddy is configured to protect a resource with TLS Client Certificate Authentication, but the resource is served by QUIC, client certificates would not be validated and the protected resource would be served to unauthenticated visitors. This vulnerability was due to failing to carefully enable the StrictHostMatching flag, and applies specifically to configurations using Client Certificates and QUIC.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism; Gain Privileges or Assume Identity
This weakness can allow an attacker to access resources which are not otherwise accessible without proper authentication.
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