CVE-2016-7143 Information

Description

The m_authenticate function in modules/m_sasl.c in Charybdis before 3.5.3 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.debian.org/security/2016/dsa-3661 http://www.openwall.com/lists/oss-security/2016/09/04/3 http://www.openwall.com/lists/oss-security/2016/09/05/8 http://www.securityfocus.com/bid/92761 https://github.com/charybdis-ircd/charybdis/blob/charybdis-3.5.3/NEWS.md https://github.com/charybdis-ircd/charybdis/commit/818a3fda944b26d4814132cee14cfda4ea4aa824

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1