ghsa-97g8-xfvw-q4hg
Vulnerability from github
Published
2022-12-13 19:44
Modified
2023-09-20 22:30
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
Keycloak vulnerable to session takeover with OIDC offline refreshtokens
Details

An issue was discovered in Keycloak when using a client with the offline_access scope. Reuse of session ids across root and user authentication sessions and a lack of root session validation enabled attackers to resolve a user session attached to a different previously authenticated user.

This issue most affects users of shared computers. Suppose a user logs out of their account (without clearing their cookies) in a mobile app or similar client that includes the offline_access scope, and another user authenticates to the application. In that case, it will share the same root session id, and when utilizing the refresh token, they will be issued a token for the original user.

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 19.0.2"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-parent"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-3916"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-304",
      "CWE-488",
      "CWE-613"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-13T19:44:33Z",
    "nvd_published_at": "2023-09-20T15:15:11Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Keycloak when using a client with the `offline_access` scope. Reuse of session ids across root and user authentication sessions and a lack of root session validation enabled attackers to resolve a user session attached to a different previously authenticated user.\n\nThis issue most affects users of shared computers. Suppose a user logs out of their account (without clearing their cookies) in a mobile app or similar client that includes the `offline_access` scope, and another user authenticates to the application. In that case, it will share the same root session id, and when utilizing the refresh token, they will be issued a token for the original user.",
  "id": "GHSA-97g8-xfvw-q4hg",
  "modified": "2023-09-20T22:30:19Z",
  "published": "2022-12-13T19:44:33Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-97g8-xfvw-q4hg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3916"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:8961"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:8962"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:8963"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:8964"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:8965"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:1043"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:1044"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:1045"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:1047"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:1049"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2022-3916"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2141404"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak vulnerable to session takeover with OIDC offline refreshtokens"
}


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