5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
6.3 Medium
AI Score
Confidence
Low
0.003 Low
EPSS
Percentile
71.3%
aMSN (aka Alvaro’s Messenger) 0.98.3 and earlier, when SSL is used, does not verify that the server hostname matches a domain name in the subject’s Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof an MSN server via an arbitrary certificate.
amsn.svn.sourceforge.net/viewvc/amsn/trunk/?view=log&pathrev=11991
amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/proxy.tcl?r1=11886&r2=11991&pathrev=11991
amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/sip.tcl?r1=11953&r2=11991&pathrev=11991
amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/soap.tcl?r1=11891&r2=11991&pathrev=11991
bugs.debian.org/cgi-bin/bugreport.cgi?bug=572818
lists.fedoraproject.org/pipermail/package-announce/2010-May/041046.html
lists.fedoraproject.org/pipermail/package-announce/2010-May/041079.html
seclists.org/bugtraq/2009/Jun/239
secunia.com/advisories/35621
secunia.com/advisories/39796
www.opensource-archive.org/showthread.php?p=183821
www.openwall.com/lists/oss-security/2010/03/10/4
www.openwall.com/lists/oss-security/2010/04/01/4
www.securityfocus.com/bid/35507
www.vupen.com/english/advisories/2010/1109