Description
The CryptoAPI component in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7, as used by Internet Explorer and other applications, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) 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, aka "Null Truncation in X.509 Common Name Vulnerability," a related issue to CVE-2009-2408.
References (7)
Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/36475
US Government Resource third-party-advisory
x_refsource_cert
http://www.us-cert.gov/cas/techalerts/TA09-286A.html
Various Sources x_refsource_misc
http://www.wired.com/threatlevel/2009/07/kaminsky/
Various Sources x_refsource_misc
http://www.networkworld.com/news/2009/091709-microsoft-ie-security-hole.html
Various Sources x_refsource_misc
http://www.networkworld.com/news/2009/073009-more-holes-found-in-webs.html
Third Party Advisory, VDB Entry vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5842
Vendor Advisory vendor-advisory
x_refsource_ms
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-056
Scores
EPSS
0.0532
EPSS Percentile
91.8%
Details
CWE
CWE-310
Status
published
Products (6)
microsoft/windows_2000
microsoft/windows_2003_server
(3 CPE variants)
microsoft/windows_7
microsoft/windows_server_2008
(8 CPE variants)
microsoft/windows_vista
(4 CPE variants)
microsoft/windows_xp
(3 CPE variants)
Published
Oct 14, 2009
Tracked Since
Feb 18, 2026