CVE-2010-0744

Severity: medium (CVSS 5.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-04-20 · updated 2026-06-16
Weakness: CWE-287

Description

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.

Affected products

Alvaros Messenger: through 0.98.3; 0.83, 0.90, 0.91, 0.92, 0.93, 0.94 (+3)

References

http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/?view=log&pathrev=11991
http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/proxy.tcl?r1=11886&r2=11991&pathrev=11991
http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/sip.tcl?r1=11953&r2=11991&pathrev=11991
http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/soap.tcl?r1=11891&r2=11991&pathrev=11991
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=572818
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041046.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041079.html
http://seclists.org/bugtraq/2009/Jun/239
http://secunia.com/advisories/35621
http://secunia.com/advisories/39796
http://www.opensource-archive.org/showthread.php?p=183821
http://www.openwall.com/lists/oss-security/2010/03/10/4

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