Re: Can we be less forgiving about what we accept?

2011-11-28 Thread Stefan Fritsch
On Monday 28 November 2011, Nick Kew wrote: On 28 Nov 2011, at 00:37, Stefan Fritsch wrote: Hi, while browsing a bit through Michael Zalewski's new Tangled Web book, I was reminded again that we are very forgiving about what we accept as a request. Is this really a good idea in the

Re: Can we be less forgiving about what we accept?

2011-11-28 Thread Tim Bannister
On 28 Nov 2011, at 00:37, Stefan Fritsch wrote: * With 'ProxyRequests off', we accept absolute urls like http://hostname/path for local requests, but we don't check that the hostname contained in it actually matches the Host header if there is one. The hostname from the URI is then used

Can we be less forgiving about what we accept?

2011-11-27 Thread Stefan Fritsch
Hi, while browsing a bit through Michael Zalewski's new Tangled Web book, I was reminded again that we are very forgiving about what we accept as a request. Is this really a good idea in the time of lots of web security issues? Examples include: * in the request line, the protocol may be

Re: Can we be less forgiving about what we accept?

2011-11-27 Thread Nick Kew
On 28 Nov 2011, at 00:37, Stefan Fritsch wrote: Hi, while browsing a bit through Michael Zalewski's new Tangled Web book, I was reminded again that we are very forgiving about what we accept as a request. Is this really a good idea in the time of lots of web security issues? Sounds