ghsa-4vpc-5jx4-cfqg
Vulnerability from github
Published
2019-12-02 18:09
Modified
2021-07-28 15:49
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
User enumeration leak using switch user functionality in Symfony
Details

An issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality. This is related to symfony/security.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/security-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.2.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/security-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "4.3.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/symfony"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.2.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/symfony"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "4.3.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-18886"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-203"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-12-01T19:47:26Z",
    "nvd_published_at": "2019-11-21T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality. This is related to symfony/security.",
  "id": "GHSA-4vpc-5jx4-cfqg",
  "modified": "2021-07-28T15:49:16Z",
  "published": "2019-12-02T18:09:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18886"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2019-18886.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-18886.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/symfony/symfony/releases/tag/v4.3.8"
    },
    {
      "type": "WEB",
      "url": "https://symfony.com/blog/cve-2019-18886-prevent-user-enumeration-using-switch-user-functionality"
    },
    {
      "type": "WEB",
      "url": "https://symfony.com/blog/symfony-4-3-8-released"
    },
    {
      "type": "WEB",
      "url": "https://symfony.com/cve-2019-18886"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "User enumeration leak using switch user functionality in Symfony"
}


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