GHSA-8XF4-W7QW-PJJW

Vulnerability from github – Published: 2022-03-30 00:00 – Updated: 2023-02-17 14:26
VLAI?
Summary
Firebase PHP-JWT key/algorithm type confusion
Details

In Firebase PHP-JWT before 6.0.0, an algorithm-confusion issue (e.g., RS256 / HS256) exists via the kid (aka Key ID) header, when multiple types of keys are loaded in a key ring. This allows an attacker to forge tokens that validate under the incorrect key. NOTE: this provides a straightforward way to use the PHP-JWT library unsafely, but might not be considered a vulnerability in the library itself.

Severity ?
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "firebase/php-jwt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-46743"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347",
      "CWE-843"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-17T14:26:38Z",
    "nvd_published_at": "2022-03-29T07:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "In Firebase PHP-JWT before 6.0.0, an algorithm-confusion issue (e.g., RS256 / HS256) exists via the kid (aka Key ID) header, when multiple types of keys are loaded in a key ring. This allows an attacker to forge tokens that validate under the incorrect key. NOTE: this provides a straightforward way to use the PHP-JWT library unsafely, but might not be considered a vulnerability in the library itself.",
  "id": "GHSA-8xf4-w7qw-pjjw",
  "modified": "2023-02-17T14:26:38Z",
  "published": "2022-03-30T00:00:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46743"
    },
    {
      "type": "WEB",
      "url": "https://github.com/firebase/php-jwt/issues/351"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/firebase/php-jwt/CVE-2021-46743.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/firebase/php-jwt"
    },
    {
      "type": "WEB",
      "url": "https://github.com/firebase/php-jwt/releases/tag/v6.0.0"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Firebase PHP-JWT key/algorithm type confusion"
}


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