Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alvaro | Alvaros Messenger | <= 0.98.3 |
Related Weaknesses (CWE)
References
- http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/?view=log&pathrev=11991Vendor Advisory
- http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/proxy.tcl?r1=11886&r2=119Vendor Advisory
- http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/sip.tcl?r1=11953&r2=11991Vendor Advisory
- http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/soap.tcl?r1=11891&r2=1199Vendor Advisory
- 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/35621Vendor Advisory
- 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
- http://www.openwall.com/lists/oss-security/2010/04/01/4
- http://www.securityfocus.com/bid/35507
- http://www.vupen.com/english/advisories/2010/1109
FAQ
What is CVE-2010-0744?
CVE-2010-0744 is a vulnerability with a CVSS score of 5.8 (MEDIUM). 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...
How severe is CVE-2010-0744?
CVE-2010-0744 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2010-0744?
Check the references section above for vendor advisories and patch information. Affected products include: Alvaro Alvaros Messenger.