National Vulnerability Database (NVD) National Vulnerability Database (CVE-2010-0744)

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Vulnerability Summary for CVE-2010-0744

Original release date:04/20/2010

Last revised:05/14/2010

Source: US-CERT/NIST

Overview

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.

Impact

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

References to Advisories, Solutions, and Tools

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External Source: VUPEN

Name: ADV-2010-1109

Hyperlink:http://www.vupen.com/english/advisories/2010/1109

External Source: BID

Name: 35507

Hyperlink:http://www.securityfocus.com/bid/35507

External Source: MLIST

Name: [oss-security] 20100401 Re: CVE Request -- aMSN -- improper SSL certificate validation (MITM)

Hyperlink:http://www.openwall.com/lists/oss-security/2010/04/01/4

External Source: MLIST

Name: [oss-security] 20100310 CVE Request -- aMSN -- improper SSL certificate validation (MITM)

Hyperlink:http://www.openwall.com/lists/oss-security/2010/03/10/4