BlackNurse DoS Attack – Daily Security Byte

Security researchers have given a marketing name to an old ICMP-based denial of service (DoS) vulnerability that affects some modern firewalls. Watch Friday’s Daily Security Byte video to learn more about how BlackNurse works, and why it doesn’t affect WatchGuard Firebox appliances.

Episode Runtime: 3:38

Direct YouTube Link: https://www.youtube.com/watch?v=U7_p6Mc7UzQ

EPISODE REFERENCES:

• Low bandwidth BlackNurse DoS attack affects some firewalls – Security Week
• TDC researcher’s BlackNurse whitepaper report [PDF] – TDC
• Proof of concept (PoC) exploit for BlackNurse – Github
• SANS handler’s blog post on BlackNurse vulnerability – SANS

— Corey Nachreiner, CISSP (@SecAdept)