keycloak
At a glance
- Source
- NVD
- EPSS
- EPSS 0.93 % · percentile 61 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-305 — Authentication Bypass by Primary Weakness
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-jh6m-3pqw-242h — Keycloak Gatekeeper vulnerable to bypass on using lower case HTTP headers
European references
- ENISA EUVD · EUVD-2022-1075
- GCVE · GCVE-0-2020-14359
Affected configurations (NVD CPE)
cpe:2.3:a:redhat:louketo_proxy:*:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| keycloak | affected all versions as of 2021-02-22 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |