PT-2020-12767 · Castel · Castel Nextgen Dvr

Published 2020-06-04 · Updated 2021-07-21 · CVE-2020-11679

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Castel NextGen DVR version 1.0.0

Description The issue allows for privilege escalation through the "Adminstrator/Users/Edit/:UserId" functionality. This is due to the failure of Adminstrator/Users/Edit/:UserId to verify that the request was submitted by an Administrator, enabling a normal user to add additional roles to their account and escalate their privileges.

Recommendations For Castel NextGen DVR version 1.0.0, restrict access to the Adminstrator/Users/Edit/:UserId functionality to prevent unauthorized privilege escalation until a proper fix is implemented.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2020-11679

Affected Products

Castel Nextgen Dvr

References · 6

• 🔥 http://seclists.org/fulldisclosure/2020/Jun/8 · Exploit
• 🔥 http://packetstormsecurity.com/files/157954/Castel-NextGen-DVR-1.0.0-Bypass-CSRF-Disclosure.html · Exploit
• 🔥 https://securitymetrics.com/blog/attackers-known-unknown-authorization-bypass · Exploit
• https://osv.dev/vulnerability/CVE-2020-11679 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11679 · Security Note
• https://t.me/cybersecuritytechnologies/1230 · Telegram Post