CVE-2020-14359

keycloak-gatekeeper: gatekeeper bypass via cURL when using lower case HTTP headers

Published Feb 23, 2021 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Description
A vulnerability was found in all versions of Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) an attacker 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-1075 A vulnerability was found in all versions of Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) an attacker 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.
Github GHSA Github GHSA GHSA-jh6m-3pqw-242h Keycloak Gatekeeper vulnerable to bypass on using lower case HTTP headers
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 4, 2024, 12:39 PM
Reserved
Jun 17, 2020, 12:00 AM
Status
Modified
Published
Feb 23, 2021, 1:15 PM
Modified
Jun 17, 2026, 2:54 AM
Severity
Moderate
Public date
Jan 19, 2021, 12:00 AM