Vulnerability CVE-2016-7143
Published: 2016-09-21

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.

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Debian -> Debian linux 
Charybdis project -> Charybdis 

 References:
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
https://github.com/charybdis-ircd/charybdis/blob/charybdis-3.5.3/NEWS.md
https://github.com/charybdis-ircd/charybdis/commit/818a3fda944b26d4814132cee14cfda4ea4aa824
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