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GHSA-jh6m-3pqw-242h

Keycloak Gatekeeper vulnerable to bypass on using lower case HTTP headers

Source: GitHub Advisory Database (reviewed) High CVE-2020-14359

Packages

EcosystemPackageAffectedFixed in
Go github.com/keycloak/keycloak-gatekeeper <= 1.2.8 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

A vulnerability was found in all versions of the deprecated package Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) we can bypass our Gatekeeper. Lower case headers are also accepted by some webservers (e.g. Jetty). This means there is no protection when we put a Gatekeeper in front of a Jetty server and use lowercase headers.

References

External links from the advisory. They lead to third-party sites.