Vulnerability · Published Feb 23, 2021 · Assigned by redhat
CVE-2020-14359
High 7.3
In plain English
A high-severity security flaw in keycloak. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).
Severity (CVSS NVD)7.3High
Exploit odds (30 days)0.9%top 39.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/keycloak/keycloak-gatekeeper | no fix listed | GHSA-jh6m-3pqw-242h |
Affected products (as reported)
Weakness: CWE-305
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1868591 x_refsource_MISC
- https://issues.jboss.org/browse/KEYCLOAK-14090 x_refsource_MISC