• Home
  • News
    • Features
    • Latest/Upcoming Tech
    • Product Review
    • Tech Events
  • Technology
    • Computing
      • Hardware
      • Software
    • Mobile
      • Devices
    • Apps
      • Messaging App
  • Innovation
    • Startups
    • Smart Gadgets
    • Augmented Reality
    • Cloud Computing
  • Business
    • Internet Commerce
    • Tech Market
  • Tips & Tricks
  • Miscellaneous
    • Jobs / Career
    • Social Media
TheTechNews
  • Home
  • News
    • Features
    • Latest/Upcoming Tech
    • Product Review
    • Tech Events
  • Technology
    • Computing
      • Hardware
      • Software
    • Mobile
      • Devices
    • Apps
      • Messaging App
  • Innovation
    • Startups
    • Smart Gadgets
    • Augmented Reality
    • Cloud Computing
  • Business
    • Internet Commerce
    • Tech Market
  • Tips & Tricks
  • Miscellaneous
    • Jobs / Career
    • Social Media
Security

BlackNurse: simple way a single laptop knocks large servers offline

by Selene Kyle
-- November 14, 2016
BlackNurse: simple way a single laptop knocks large servers offline

To launch a denial of service attack, it’s not always necessary that you have a huge botnet. Researchers at TDC Security Operations Center have disclosed BlackNurse, a new attack mechanism that can cripple large servers using just one computer (or laptop), along with at least 15Mbps of bandwidth.

One laptop to kill the servers

Unlike another denial of service attacks, you don’t have to bombard a server with traffic; instead, you send low volume ICMP packets, which overwhelm the processors on server firewalls made by Cisco, Zyxel, SonicWall, Palo Alto Networks and others. Result? The firewalls end up dropping a huge amount of data, making the server behind the device unable to communicate with the internet.

BlackNurse

However, the good news is there’re ways to fight against BlackNurse. Researchers at TDC suggest that you should install software filters to prevent this kind of attack. Besides, firewall makers that allow ICMP packets from outside should be concerned. For instance, Palo Alto notes that unless you change their firewall settings and ignore its guidelines for anti-flood protection, you’re safe. Its firewall will automatically drop those kinds of requests. Also, Cisco doesn’t consider it a security threat, either.

However, the danger hasn’t gone yet. There are some businesses that require tweaking their setting to let the ICMP data in. And not all the firewalls are guaranteed to maintain similar rules. BlackNurse is a reminder for all of us that denial of service attack can come in many forms, even from a person using just a laptop at home.

ringid
Related ItemsBlackNurseBotnetCiscodenial of service attackFeaturedFirewallICMPInternetLaptopPalo AltoSecurity
Click to add a comment
Security
November 14, 2016
Selene Kyle

Related ItemsBlackNurseBotnetCiscodenial of service attackFeaturedFirewallICMPInternetLaptopPalo AltoSecurity

More in Security

cyber security-of-RDP-by-microsoft

Defend Your Network With Real-Time Protection!

Emily ForbesFebruary 10, 2021
Read More
securing_data_hackers_the_technews

Innovative Ideas for Protecting Data Privacy!

Emily ForbesJuly 12, 2020
Read More

Reasons Why Your Business Needs a VPN!

Emily ForbesJuly 9, 2020
Read More

What You Need to Know About Cybercriminals!

Emily ForbesJune 3, 2020
Read More
big-data-a-great-way-to-ensure-strong-authentication

Identity Management is Essential for Zero-Trust Security!

Emily ForbesApril 22, 2020
Read More

Complete Cybersecurity Solution for Business And Home

Emily ForbesApril 15, 2020
Read More
broadband_internet_connection_the_technews

VPN Speed Testing – How To Increase It?

Emily ForbesApril 14, 2020
Read More
stronger-network-security-the-tech-news

Why Security Audits are Important to Your Business

Emily ForbesApril 12, 2020
Read More
introducing-fbis-most-wanted-cybercriminals

What to Look at When Examining Different VPNs!

Emily ForbesApril 9, 2020
Read More
Scroll for more
Tap

Join Our Newsletter

Subscribe to our mailing list and get interesting stuff and updates to your email inbox.

Thank you for subscribing.

Something went wrong.

we respect your privacy and take protecting it seriously

Top News

  • ftp-meaning-technews
    5 Factors to Consider Before Starting a Remote Business!
    BusinessFebruary 27, 2021
  • big-data-experts
    Reasons Why Organizations Need Modern Integration Platforms!
    Big DataFebruary 18, 2021
  • best_practices_online_business_the_technews
    Implement Business Analytics and Cut Costs!
    BusinessFebruary 18, 2021
  • Effective SEO Techniques to Drive Traffic to Your Website Today!
    Tips & TricksFebruary 17, 2021
  • The Internet of Things in 2021!
    InnovationFebruary 16, 2021
  • Can You Eliminate Shipping Damage?
    InnovationFebruary 15, 2021
  • SmileDirectClub Partners with MetLife to Democratize Orthodontic Care
    Health & FitnessFebruary 14, 2021
TheTechNews

A technology media that aims at the latest tech news, events, gadgets, tools, innovations, startups and many more.

    NEWS

  • Features
  • Latest/Upcoming Tech
  • Product Review
  • Tech Events
  • Technology
  • Innovation
  • Business

    Hardware & Software

  • Computing
  • Hardware
  • Software
  • Mobile
  • Devices
  • Messaging App
  • Tips & Tricks

    Others

  • Startups
  • Cloud Computing
  • Social Media
  • Internet Commerce

Copyright © 2016 www.thetechnews.com | Pages: ABOUT US | PRIVACY POLICY | TERMS OF USE | CONTACT US

Learn tracking cell phones using a Wi-Fi connection only
This is how you reveal your passwords to Wi-Fi signal with just your finger movements