59960 : msmtp X.509 Certificate Multiple Fields NULL Character Spoofing SSL MiTM Weakness
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Timeline

Disclosure Date
2009-10-24

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-3942" target="_blank">CVE</a>)</em> : Martin Lambers msmtp before 1.4.19, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Classification

Location: Remote / Network Access
Attack Type: Cryptographic, Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public
Disclosure: Vendor Verified

Solution

Upgrade to version 1.4.19 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Unknown or Incomplete

References

CVE ID: 2009-3942 (see also: NVD)
Secunia Advisory ID: 37321 38159 49704
Vendor Specific News/Changelog Entry: http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00007.html
http://msmtp.sourceforge.net/news.html
http://www.gentoo.org/security/en/glsa/glsa-201206-34.xml
Other Advisory URL: http://www.vupen.com/english/advisories/2009/3224

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2009-11-17 | Disagree? | There are 1 more: View All

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