Question

Locked

How Secure is VPN over unencrypted wifi networks?

By madflyguy ·
I've tried googling similar arguments several times, and all I ever find are people's opinions and speculation. I want to know if someone has objectively tried cracking passwords and other sensitive data being sent via vpn over an unencrypted wifi network. I personally am not savvy enough to do this - I can capture packets but wouldn't know where to begin decrypting passwords, etc...

If you know of a site that has done this, or have personally done such work, let me know or please point me in the right direction. Thank you.

This conversation is currently closed to new comments.

3 total posts (Page 1 of 1)  
Thread display: Collapse - | Expand +

All Answers

Collapse -

Security will never be totally black or white.

Security is a matter of degrees and layers. The more appropriately applied layers, the more secure the network is. I also look at security requirements for each individual situation using a RoI business perspective. Meaning I always try to have the value of protected product be substantially less than the cost required to obtain the protected product.

George Ou has a good article about this very subject and for what it's worth I agree with its tenets.

http://blogs.zdnet.com/Ou/?p=489

The article states the importance of using multiple layers of security and best practices. Which in most circumstances will make VPNs over secured/encrypted Wi-Fi links an acceptable risk. I also think that actual documentation as to processes will not be helpful as pen tests are situationally specific.

Collapse -

VPN over wifi

by SYNner In reply to How Secure is VPN over un ...

as long as you have a tunnel from your workstation to a VPN server, then the traffic inside the tunnel is secure even over wifi.

Collapse -

Programs

by nvious22 In reply to VPN over wifi

Try Ethereal and Cain&Able. These are pretty good sniffing and cracking tools.

Back to Networks Forum
3 total posts (Page 1 of 1)  

Related Discussions

Related Forums