+44 (0)203 88 020 88

Menu

Search

Cyber Security News & Articles

 

Cyber Security
News & Articles

Trusted Cyber Security Experts
25+ Years Industry Experience
Ethical, Professional & Pragmatic

Critical 2018 Vulnerability Actively Exploited in TBK

A five-year-old authentication bypass vulnerability present in TBK DVR4104 and DVR4216 TBK Vision devices is being actively exploited in attacks. TBK DVR (digital video recording) devices are sold under other brand names including Novo, CeNova, QSee, Pulnix, XVR 5 in 1, Securus, Night OWL, DVR Login, HVR Login, and MDVR. The wide range of rebrands and the variety of sectors that these TBK DVR devices are supplied to mean these attacks could target individuals who are not even aware they are vulnerable. FortiGuard Labs, the threat research group from Fortinet, have published an Outbreak Alert about the attacks exploiting this unpatched vulnerability. Attackers are able to easily perform these attacks due to proof of concept (PoC) code for this exploit being publicly available on GitHub. 

The vulnerability exploited in these attacks is tracked as CVE-2018-9995. This critical severity flaw has a CVSS base score of 9.8, and has seemingly never had a patch issued for it by the vendor despite being first identified in May 2018. This vulnerability can be exploited by a remote attacker, who can send a specially crafted HTTP cookie to the vulnerable system. This allows them to use a Cookie: uid=admin header to bypass authentication and elevate to administrator level privileges. Once these privileges are obtained, the remote attackers have access to the camera video feeds of the vulnerable devices. FortiGuard Labs researchers have detected a recent spike in IPS detections, which is indicative of these attacks. 

As there is no vendor supplied patch for this flaw, and a range of rebrands have occurred causing the vulnerable systems to be distributed under a range of names, all users of DVR systems should review their devices to find out if they are vulnerable to this form of attack. The IPS signature can be configured to block attacks on vulnerable devices, however this is not a permanent fix. Vulnerable devices should be replaced as soon as possible with updated system to best prevent falling victim to these attacks. 

 

 

Subscribe to our monthly newsletter today

If you’d like to stay up-to-date with the latest cyber security news and articles from our technical team, you can sign up to our monthly newsletter. 

We hate spam as much as you do, so we promise not to bombard you with emails. We’ll send you a single, curated email each month that contains all of our cyber security news and articles for that month.

Why Choose SecureTeam?

Customer Testimonials

“We were very impressed with the service, I will say, the vulnerability found was one our previous organisation had not picked up, which does make you wonder if anything else was missed.”

Aim Ltd Chief Technology Officer (CTO)

"Within a very tight timescale, SecureTeam managed to deliver a highly professional service efficiently. The team helped the process with regular updates and escalation where necessary. Would highly recommend"

IoT Solutions Group Limited Chief Technology Officer (CTO) & Founder

“First class service as ever. We learn something new each year! Thank you to all your team.”

Royal Haskoning DHV Service Delivery Manager

“We’ve worked with SecureTeam for a few years to conduct our testing. The team make it easy to deal with them; they are attentive and explain detailed reports in a jargon-free way that allows the less technical people to understand. I wouldn’t work with anyone else for our cyber security.”

Capital Asset Management Head of Operations

“SecureTeam provided Derbyshire's Education Data Hub with an approachable and professional service to ensure our schools were able to successfully certify for Cyber Essentials. The team provided a smooth end-to-end service and were always on hand to offer advice when necessary.”

Derbyshire County Council Team Manager Education Data Hub

“A very efficient, professional, and friendly delivery of our testing and the results. You delivered exactly what we asked for in the timeframe we needed it, while maintaining quality and integrity. A great job, done well.”

AMX Solutions IT Project Officer

“We were very pleased with the work and report provided. It was easy to translate the provided details into some actionable tasks on our end so that was great. We always appreciate the ongoing support.”

Innovez Ltd Support Officer

Get in touch today

If you’d like to see how SecureTeam can take your cybersecurity posture to the next level, we’d love to hear from you, learn about your requirements and then send you a free quotation for our services.

Our customers love our fast-turnaround, “no-nonsense” quotations – not to mention that we hate high-pressure sales tactics as much as you do.

We know that every organisation is unique, so our detailed scoping process ensures that we provide you with an accurate quotation for our services, which we trust you’ll find highly competitive.

Get in touch with us today and a member of our team will be in touch to provide you with a quotation. 

0

No products in the basket.

No products in the basket.