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Vulnerability Details : CVE-2009-2510

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.
Publish Date : 2009-10-14 Last Update Date : 2010-08-21
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 310

- Related OVAL Definitions

Title Definition Id Class Family
MS09-056: Vulnerabilities in Windows CryptoAPI Could Allow Spoofing (974571) oval:gov.nist.fdcc.patch:def:11590 windows
MS09-056: Vulnerabilities in Windows CryptoAPI Could Allow Spoofing (974571) oval:gov.nist.USGCB.patch:def:11590 windows
Null Truncation in X.509 Common Name Vulnerability oval:org.mitre.oval:def:5842 windows
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-2510

# Product Type Vendor Product Version Update Edition Language
1 OS Microsoft Windows 2000 SP4 Version Details Vulnerabilities
2 OS Microsoft Windows 2003 Server SP2 X64 Version Details Vulnerabilities
3 OS Microsoft Windows 2003 Server SP2 Itanium Version Details Vulnerabilities
4 OS Microsoft Windows 2003 Server SP2 Version Details Vulnerabilities
5 OS Microsoft Windows 7 - - X64 Version Details Vulnerabilities
6 OS Microsoft Windows 7 - - X32 Version Details Vulnerabilities
7 OS Microsoft Windows Server 2008 - SP2 X64 Version Details Vulnerabilities
8 OS Microsoft Windows Server 2008 - SP2 Itanium Version Details Vulnerabilities
9 OS Microsoft Windows Server 2008 - SP2 X32 Version Details Vulnerabilities
10 OS Microsoft Windows Server 2008 R2 X64 Version Details Vulnerabilities
11 OS Microsoft Windows Server 2008 R2 Itanium Version Details Vulnerabilities
12 OS Microsoft Windows Server 2008 Itanium Version Details Vulnerabilities
13 OS Microsoft Windows Server 2008 X32 Version Details Vulnerabilities
14 OS Microsoft Windows Server 2008 X64 Version Details Vulnerabilities
15 OS Microsoft Windows Vista SP1 X64 Version Details Vulnerabilities
16 OS Microsoft Windows Vista SP2 X64 Version Details Vulnerabilities
17 OS Microsoft Windows Vista Version Details Vulnerabilities
18 OS Microsoft Windows Vista SP1 Version Details Vulnerabilities
19 OS Microsoft Windows Vista SP2 Version Details Vulnerabilities
20 OS Microsoft Windows Vista X64 Version Details Vulnerabilities
21 OS Microsoft Windows Xp - SP2 X64 Version Details Vulnerabilities
22 OS Microsoft Windows Xp SP2 Version Details Vulnerabilities
23 OS Microsoft Windows Xp SP3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Microsoft Windows 2000 1
Microsoft Windows 2003 Server 3
Microsoft Windows 7 2
Microsoft Windows Server 2008 8
Microsoft Windows Vista 6
Microsoft Windows Xp 3

- References For CVE-2009-2510

http://www.networkworld.com/news/2009/073009-more-holes-found-in-webs.html
http://www.networkworld.com/news/2009/091709-microsoft-ie-security-hole.html
http://www.securityfocus.com/bid/36475
BID 36475 Microsoft Internet Explorer NULL Byte CA SSL Certificate Validation Security Bypass Vulnerability Release Date:2009-11-02
http://technet.microsoft.com/en-us/security/bulletin/ms09-056
Microsoft Security Bulletin MS09-056 Vulnerabilities in Windows CryptoAPI Could Allow Spoofing (974571) This security update resolves two publicly disclosed vulnerabilities in Microsoft Windows. The vulnerabilities could allow spoofing if an attacker gains access to the certificate used by the end user for authentication.
http://www.wired.com/threatlevel/2009/07/kaminsky/
http://www.us-cert.gov/cas/techalerts/TA09-286A.html
CERT TA09-286A

- Metasploit Modules Related To CVE-2009-2510

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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