full-disclosure - SSL VPNs and security

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Message-ID: <20060609142330.GE3313@sentinelchicken.org>
Date: Fri Jun  9 15:23:42 2006
From: tim-security at sentinelchicken.org (Tim)
Subject: SSL VPNs and security

> That depends on whether the solution tries to solve single-sign-on
> problems as well.  If the vendor is trying to handle SSO in such an
> environment, then they are probably using domain cookies.  The
> problems are exactly the same as the ones Michal listed, plus some
> additional ones specific to domain cookies.

Right, that does make it difficult.  There's probably work arounds, but
they may be browser-specific.  Wildcard cookies, cookies set to other
origins, or somehow setting document.domain back to the base domain
after the initial page load might help, but some would probably present
the same problem.

The web was never designed for complex application development.  At
least, web standards aren't.  Use a real VPN. 

cheers,
tim