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Last updated: 3/4/2015 7:15:30 PM

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Vulnerability Summary for CVE-2010-0744

Original release date: 04/20/2010
Last revised: 05/14/2010


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 Severity (version 2.0):
CVSS v2 Base Score: 5.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:N) (legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification

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External Source: BID
Name: 35507
External Source: CONFIRM
Name: http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/sip.tcl?r1=11953&r2=11991&pathrev=11991
Type: Advisory
External Source: CONFIRM
Name: http://www.opensource-archive.org/showthread.php?p=183821
External Source: MLIST
Name: [oss-security] 20100310 CVE Request -- aMSN -- improper SSL certificate validation (MITM)
External Source: CONFIRM
Name: http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/soap.tcl?r1=11891&r2=11991&pathrev=11991
Type: Advisory
External Source: CONFIRM
Name: http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/amsn/proxy.tcl?r1=11886&r2=11991&pathrev=11991
Type: Advisory
External Source: FEDORA
Name: FEDORA-2010-7378
External Source: MLIST
Name: [oss-security] 20100401 Re: CVE Request -- aMSN -- improper SSL certificate validation (MITM)
External Source: CONFIRM
Name: http://amsn.svn.sourceforge.net/viewvc/amsn/trunk/?view=log&pathrev=11991
Type: Advisory
External Source: BUGTRAQ
Name: 20090626 aMSN SSL Certificate Vulnerability
External Source: MISC
Name: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=572818
External Source: VUPEN
Name: ADV-2010-1109
External Source: FEDORA
Name: FEDORA-2010-7373

Technical Details

Vulnerability Type (View All)