Question

ABC Corporation is evaluating the security solution for their existing WLAN. Two of their supported solutions include a PPTP VPN and 802.1X/LEAP. They have used PPTP VPNs because of their wide support in server and desktop operating systems. While both PPTP and LEAP adhere to the minimum requirements of the corporate security policy, some individuals have raised concerns about MS- CHAPv2 (and similar) authentication and the known fact that MS-CHAPv2 has proven vulnerable in improper implementations. As a consultant, what do you tell ABC Corporation about implementing MS-CHAPv2 authentication?

Accepted Answer

MS-CHAPv2 is only appropriate for WLAN security when used inside a TLS-encrypted tunnel.

Answer

When implemented with AES-CCMP encryption, MS-CHAPv2 is very secure.

Answer

MS-CHAPv2 uses AES authentication, and is therefore secure.

Answer

MS-CHAPv2 is compliant with WPA-Personal, but not WPA2-Enterprise.

Answer

LEAP’s use of MS-CHAPv2 is only secure when combined with WEP.

ABC Corporation is evaluating the security solution for their existing WLAN. Two of their supported solutions include a PPTP VPN and 802.1X/LEAP…

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