Vulnerabilities

	Vulnerabilities
advICE :Countermeasures :VPN :PPTP : Vulnerabilities

In 1998, Counterpane Systems describes numerous weaknesses in Microsoft's implementation of PPTP. These have been fixed in the latest service packs and OS releases.

Windows NT Mag: Is PPTP Safe?-Discussion of the weaknesses in Microsoft's implementation of PPTP.
Counterpane: Criticism of Microsoft's Implementation-The original vulnerability description from Counterpane Systems.
Microsoft Security Bulletin (MS98-012)-Describes the problems, then lists the fixes.
Microsoft: PPTP Security FAQ-FAQ on security, which includes an answer to the question "Is it secure?"
Microsoft: PPTP Security document-Describes Microsoft's security implementation, MSCHAP V2, which fixes these vulnerabilities.
q189771 -This describes a fix to the Counterpane problem.

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