FortiGuard Labs observed "Critical" level of attack attempts to exploit an Authentication Bypass Vulnerability in TBK DVR devices (4104/4216) with upto more than 50,000+ unique IPS detections in the month of April 2023. The 5-year-old vulnerability (CVE-2018-9995) is due to an error when handling a maliciously crafted HTTP cookie. A remote attacker may be able to exploit this flaw to bypass authentication and obtain administrative privileges eventually leading access to camera video feeds.
