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Re: [Full-disclosure] Security Advisory - phpBB 2.0.15 PHP-code injectio

from [Tatercrispies] Network Security [Permanent Link]
Subject: Re: [Full-disclosure] Security Advisory - phpBB 2.0.15 PHP-code injection bug
Date: Wed, 29 Jun 2005 08:41:41 -0500 
Why is this ability even present in PHP's regular expression
functions? What kind of decision making concludes that regular
expression functions should be able to execute inline code? I just
can't get my head around this.

Are there any other PHP functions that bizarrely mate EVAL ability
with seemingly unrelated functions?






The highlighting code uses the preg_replace() function on line 1110
in viewtopic.php. It uses the special modifier "e" which causes PHP
to evaluate the replacement string as PHP code. Below is a PHP code
example of what actually happens:


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