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TUCoPS :: Web :: PHP :: tb12419.htm

PHP < 5.2.3 fnmatch() denial of service



PHP < 5.2.3 fnmatch() denial of service
PHP < 5.2.3 fnmatch() denial of service



Application: PHP < 5.2.3
Web Site: http://php.net 
Platform: unix
Bug: denial of service
fonction: fnmatch()
special condition: default php-memory-limit 
-------------------------------------------------------

1) Introduction
2) Bug
3) Proof of concept
4) Greets
5) Credits
==========1) Introduction
==========
"PHP  is a widely-used general-purpose scripting language that
is especially suited for Web development and can be embedded into HTML."

=====2) Bug
=====
fnmatch() is vulnerable to a denial of service

====3)Proof of concept
====
Proof of concept example :


result:
(gdb) run 2.php
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1215469888 (LWP 11079)]
0xb7970d99 in fnmatch () from /lib/tls/i686/cmov/libc.so.6



=======4)Greets
=======Ivanlef0u,Deimos,benji,soh,and everyones on worldnet: #futurezone & #nibbles

====5)Credits
====
Laurent gaffie
contact : laurent.gaffie@gmail.com 
stay tuned, site comming soon ....


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