Re: Pen-Testing VPN

From: Matthew Franz (mdfranzat_private)
Date: Sun Apr 06 2003 - 16:49:46 PDT

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    The presentation is at http://www.io.com/~mdfranz/papers/howsecure.ppt and 
    the last dozen or so slides deal with potential IKE security issues. I 
    don't think the 12 byte issue was in the prezo, but similar malformed 
    IKE/AH/ESP messages can be generated with udpsic and isic.
    
    - mdf
    
    > 	While I don't remember if it included tools, there was a paper on 
    > pen-testing an IPSEC gateway at the Cansecwest conference 2 years ago. The
    > gist of it was that it is possible to cause a (defeatable) denial of service
    > in the first 12 bytes of an initial connection it was otherwise pretty 
    > secure. That of course doesn't necessarily go for the management web interface
    > on the VPN gateway (there was also a paper on penetrating those at the same
    > conference). That should at least give you a place to start poking :-).
    > I believe the web site is www.cansecwest.com (google will find it in any case).
    > 
    > Peter Van Epp / Operations and Technical Support 
    > Simon Fraser University, Burnaby, B.C. Canada
    > 
    > top spam and e-mail risk at the gateway.
    > SurfControl E-mail Filter puts the brakes on spam & viruses
    > and gives you the reports to prove it. See exactly how much
    > junk never even makes it in the door. Free 30-day trial:
    > http://www.securityfocus.com/SurfControl-pen-test
    
    top spam and e-mail risk at the gateway.
    SurfControl E-mail Filter puts the brakes on spam & viruses
    and gives you the reports to prove it. See exactly how much
    junk never even makes it in the door. Free 30-day trial:
    http://www.securityfocus.com/SurfControl-pen-test
    



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