CVE-2009-3677 Information

Description

The Internet Authentication Service (IAS) in Microsoft Windows 2000 SP4 XP SP2 and SP3 Server 2003 SP2 Vista Gold and SP1 and Server 2008 Gold does not properly verify the credentials in an MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP) authentication request which allows remote attackers to access network resources via a malformed request aka \MS-CHAP Authentication Bypass Vulnerability.\

Reference

http://www.securitytracker.com/id?1023291 http://www.us-cert.gov/cas/techalerts/TA09-342A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-071 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A6209