On Wed, Jul 7, 2010 at 10:54 AM, BlackHawk <hawkgot...@gmail.com> wrote: > Hi list, i recently discovered a very small Windows XP bug, kind of > useless alone but that could be usefull in some scenarios. > > Explanation: > > when you try to access a non existing directory though shell command > "cd", XP returns an error (obviously), but if you cd to a non-existing > & move one directory up, you'll not get any error. > > Example: > --- > C:\>cd ./somerandomchars <-- Will give an error > Impossibile trovare il percorso specificato. > > C:\>cd ./somerandomchars/../ <-- Everything is ok > > C:\> > --- > > PoC on how to make this thing usefull: > http://www.scribd.com/doc/28080332/Podcast-Generator-1-3-Arbitrary-File-Download-Windows > > Hope this could be useful for you in some way.. > > -- > BlackHawk - hawkgot...@gmail.com > > Sent with Gmail > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > Hosted and sponsored by Secunia - http://secunia.com/ >
Never seen this before. But, it's very obvious, as you are 'changing directory'(cd thisdoesntexist/) to a non existing folder and then getting out of it(../). But, there is difference with evaluation/calculation in windows and linux. Here is how... On Windows Box... C:\>cd thisdoesntexist/ The system cannot find the path specified. C:\>cd thisdoesntexist/../ C:\>cd thisdoesntexist/thisonetoo/../ The system cannot find the path specified. C:\>cd thisdoesntexist/thisonetoo/../../ C:\> On Linux box... o...@ubuntubox:~$ cd thisdoesntexist/ -bash: cd: thisdoesntexist: No such file or directory o...@ubuntubox:~$ cd thisdoesntexist/../ -bash: cd: thisdoesntexist/../: No such file or directory o...@ubuntubox:~$ -- Thanks, Sagar Belure Security Analyst Secfence Technologies www.secfence.com _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/