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Windows 7: Microsoft Security Advisory (2743314)


20 Aug 2012   #1
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 
Microsoft Security Advisory (2743314)

Unencapsulated MS-CHAP v2 Authentication Could Allow Information Disclosure


Quote:
General Information

Executive Summary

Microsoft is aware that detailed exploit code has been published for known weaknesses in the Microsoft Challenge Handshake Authentication Protocol version 2 (MS-CHAP v2). The MS-CHAP v2 protocol is widely used as an authentication method in Point-to-Point Tunneling Protocol (PPTP)-based VPNs. Microsoft is not currently aware of active attacks that use this exploit code or of customer impact at this time. Microsoft is actively monitoring this situation to keep customers informed and to provide customer guidance as necessary.


Mitigating Factors:
  • Only VPN solutions that rely on PPTP in combination with MS-CHAP v2 as the sole authentication method are vulnerable to this issue.
Read more at:
Microsoft Security Advisory (2743314): Unencapsulated MS-CHAP v2 Authentication Could Allow Information Disclosure


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 Microsoft Security Advisory (2743314)




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