GHSA-JH6M-3PQW-242H

Vulnerability from github – Published: 2022-02-09 00:56 – Updated: 2022-08-12 20:52
VLAI?
Summary
Keycloak Gatekeeper vulnerable to bypass on using lower case HTTP headers
Details

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.

Severity ?
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/keycloak/keycloak-gatekeeper"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-14359"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-305"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-01T16:13:00Z",
    "nvd_published_at": "2021-02-23T13:15:00Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-jh6m-3pqw-242h",
  "modified": "2022-08-12T20:52:13Z",
  "published": "2022-02-09T00:56:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14359"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/issues/12934"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1868591"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak-gatekeeper"
    },
    {
      "type": "WEB",
      "url": "https://issues.jboss.org/browse/KEYCLOAK-14090"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20190613000352/github.com/keycloak/keycloak-gatekeeper"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak Gatekeeper vulnerable to bypass on using lower case HTTP headers"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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