CVE-2013-6171

    Dashboard / Vulnerabilities / CVE-2013-6171

    CVE-2013-6171

    Published: 9 Dec 2013Last Modified: 10 Apr 2026

    Summary:

    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: http://secunia.com/advisories/54808, http://www.dovecot.org/list/dovecot-news/2013-November/000264.html, http://cpanel.net/tsr-2013-0010-full-disclosure/, http://wiki2.dovecot.org/AuthDatabase/CheckPassword#Security, https://usn.ubuntu.com/3556-2/

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2013-6171 | CVE-DB