Re: [tahoe-dev] report of an unsuccessful assault on our fortress

2010-07-26 Thread Zooko O'Whielacronx
Okay, your post deserves a thorough response and probably a few updates to our issue tracker, but it is way past my bed-time and I'm just going to fire off what comes to mind. On Sun, Jul 25, 2010 at 11:01 PM, Chris Palmer ch...@noncombatant.org wrote: Did you/he try to create a file that loads

Re: [tahoe-dev] report of an unsuccessful assault on our fortress

2010-07-26 Thread Chris Palmer
Zooko O'Whielacronx writes: Okay, your post deserves a thorough response and probably a few updates to our issue tracker, but it is way past my bed-time and I'm just going to fire off what comes to mind. Fair enough; I did my bug-hunting in the same spirit. :) Did you/he try to create a

Re: [tahoe-dev] report of an unsuccessful assault on our fortress

2010-07-26 Thread Brian Warner
The unguessable caps make the attack payload trickier than the usual trivial-pwnage payload, but not impossible. Yeah, it means that the attacker cannot acquire authority (the ability to read or write a tahoe file) by merely guessing at a URL: they have to steal one from a tab which already

[tahoe-dev] report of an unsuccessful assault on our fortress

2010-07-25 Thread Zooko O'Whielacronx
Wade Simmons told me that he spent several hours trying to exploit Tahoe-LAFS in order to create and win the Fourth I Hacked Tahoe-LAFS! T-Shirt, but that he couldn't figure out how to do it. I work with Wade at SimpleGeo and I have a high opinion of his engineering skill. He explored what

Re: [tahoe-dev] report of an unsuccessful assault on our fortress

2010-07-25 Thread Chris Palmer
Zooko O'Whielacronx writes: I had thought, based on what a few web security experts had told me, that it would be easy for the attacker to take advantage of this situation, but Wade reported that he was unable to do it. He was using Safari 5 for testing. Did you/he try to create a file that