{
  "modified": "2025-08-09T19:01:27Z",
  "published": "2013-12-09T16:36:47Z",
  "id": "CVE-2013-6171",
  "details": "checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/54808"
    },
    {
      "type": "FIX",
      "url": "http://www.dovecot.org/list/dovecot-news/2013-November/000264.html"
    },
    {
      "type": "WEB",
      "url": "http://cpanel.net/tsr-2013-0010-full-disclosure/"
    },
    {
      "type": "WEB",
      "url": "http://wiki2.dovecot.org/AuthDatabase/CheckPassword#Security"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3556-2/"
    }
  ]
}