{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "zendframework/zendframework1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.12.0"
            },
            {
              "fixed": "1.12.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-06-07T22:26:25Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "We discovered several methods used to generate random numbers in ZF1 that potentially used insufficient entropy. These random number generators are used in the following method calls:\n```\nZend_Ldap_Attribute::createPassword\nZend_Form_Element_Hash::_generateHash\nZend_Gdata_HttpClient::filterHttpRequest\nZend_Filter_Encrypt_Mcrypt::_srand\nZend_OpenId::randomBytes\n```\nIn each case, the methods were using rand() or mt_rand(), neither of which can generate cryptographically secure values. This could potentially lead to information disclosure should an attacker be able to brute force the random number generation.\n\nMoreover, we discovered a potential security issue in the usage of the [openssl_random_pseudo_bytes()](http://php.net/manual/en/function.openssl-random-pseudo-bytes.php) function in Zend_Crypt_Math::randBytes, reported in PHP BUG [#70014](https://bugs.php.net/bug.php?id=70014), and the security implications reported in a discussion [on the random_compat library.](https://github.com/paragonie/random_compat/issues/96)",
  "id": "GHSA-8xhv-gqm4-3w99",
  "modified": "2024-06-07T22:26:25Z",
  "published": "2024-06-07T22:26:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://framework.zend.com/security/advisory/ZF2016-01"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zendframework1/ZF2016-01.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zendframework/zf1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ZendFramework1 Potential Insufficient Entropy Vulnerability"
}