{
  "schema_version": "1.4.0",
  "id": "GHSA-v2wf-c3j6-wpvw",
  "modified": "2022-04-12T21:27:49Z",
  "published": "2022-04-12T21:27:49Z",
  "aliases": [
    "CVE-2020-5205"
  ],
  "summary": "Session fixation",
  "details": "### Impact\n\nThe use of `Plug.Session` in `Pow.Plug.Session` is susceptible to session fixation attacks if a persistent session store is used for `Plug.Session`, such as Redis or a database. Cookie store, which is used in most Phoenix apps, doesn't have this vulnerability.\n\n### Workarounds\n\nCall `Plug.Conn.configure_session(conn, renew: true)` periodically and after privilege change. A custom authorization plug can be written where the `create/3` method should return the `conn` only after `Plug.Conn.configure_session/2` have been called on it.\n\n### References\nhttps://github.com/danschultzer/pow/commit/578ffd3d8bb8e8a26077b644222186b108da474f  \nhttps://www.owasp.org/index.php/Session_fixation",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Hex",
        "name": "pow"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.16"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/danschultzer/pow/security/advisories/GHSA-v2wf-c3j6-wpvw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5205"
    },
    {
      "type": "WEB",
      "url": "https://github.com/danschultzer/pow/commit/578ffd3d8bb8e8a26077b644222186b108da474f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/danschultzer/pow"
    },
    {
      "type": "WEB",
      "url": "https://github.com/danschultzer/pow/blob/master/CHANGELOG.md#v1016-2020-01-07"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-384"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2022-04-12T21:27:49Z",
    "nvd_published_at": null
  }
}