GHSA-75P6-52G3-RQC8

Vulnerability from github – Published: 2022-04-26 21:21 – Updated: 2022-07-21 16:21
VLAI?
Summary
Keycloak vulnerable to privilege escalation on Token Exchange feature
Details

A privilege escalation flaw was found in the token exchange feature of keycloak. Missing authorization allows a client application holding a valid access token to exchange tokens for any target client by passing the client_id of the target. This could allow a client to gain unauthorized access to additional services.

Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "18.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-1245"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639",
      "CWE-862",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-04-26T21:21:00Z",
    "nvd_published_at": "2022-07-08T00:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A privilege escalation flaw was found in the token exchange feature of keycloak. Missing authorization allows a client application holding a valid access token to exchange tokens for any target client by passing the client_id of the target. This could allow a client to gain unauthorized access to additional services.",
  "id": "GHSA-75p6-52g3-rqc8",
  "modified": "2022-07-21T16:21:16Z",
  "published": "2022-04-26T21:21:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-75p6-52g3-rqc8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1245"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/commit/76d83f46fad94ebcbedaa49e6daad458e2894e52"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak vulnerable to privilege escalation on Token Exchange feature"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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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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