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www.waraxe.us Forum Index -> Newbies corner -> Change extension
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Change extension
PostPosted: Thu Mar 06, 2008 11:24 am Reply with quote
Nial
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Joined: Feb 29, 2008
Posts: 103




Hello !

I was wondering if there were a way to change the extension of a file without changing his execution like for exemple exemple.php to exemple.php.jpg or naming the php file exemple.php?id=jpg to be able to upload is a a jpg file...


Last edited by Nial on Mon Mar 24, 2008 10:37 pm; edited 1 time in total
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PostPosted: Thu Mar 06, 2008 12:56 pm Reply with quote
pexli
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Joined: May 24, 2007
Posts: 665
Location: Bulgaria




example.php%00
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PostPosted: Fri Mar 07, 2008 4:36 pm Reply with quote
Nial
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Joined: Feb 29, 2008
Posts: 103




It doesnt seem to work... I've named my file exemple.php%00 and when i want to reach it (in local) on my local server, it doesnt find it...
And is %00 for jpg file or just to change the name of the file?
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PostPosted: Fri Mar 07, 2008 7:18 pm Reply with quote
pexli
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Try on target server to upload shell.php%00 then search shell.php
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PostPosted: Sat Mar 08, 2008 4:38 am Reply with quote
Nial
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Posts: 103




It doesnt work :s
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PostPosted: Mon Mar 24, 2008 10:37 pm Reply with quote
Nial
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Joined: Feb 29, 2008
Posts: 103




I come back :p
There is something i missed with your method. There is an upload script which test if the extension of the file uploaded is .jpg
If i rename my file shell.php%00 it isnt detected as jpg extension. So is there another way to bypass this security?
It doesnt check if the content file is jpg, just the extension.
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Change extension
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