Welcome!

Containers Expo Blog Authors: Robert Reeves, Pat Romanski, Flint Brenton, Elizabeth White, Anders Wallgren

Related Topics: SDN Journal, Java IoT, Microservices Expo, Microsoft Cloud, Containers Expo Blog, Cloud Security

SDN Journal: Blog Feed Post

SDN and Security: Network versus Applications

As attackers move up the stack, so must defenders

That attackers are moving "up the stack", toward the application layer, should be no surprise. Increasingly, network layer attacks are a distraction; a means to engage security professionals attention while the real target - an application - is attacked. Even when this is not the case, the tendency to attack at the application layers is increasing because honestly it's cheaper in terms of resources to take out an application using application layer attacks than it is to do so at the network layers. Sure, an attacker might not be able to completely eradicate a company's presence from the Internet, but it can take out critical applications that make it appear as if they've disappeared, which has pretty much the intended effect - costly downtime due to loss of revenue, brand damages, and probably a few blown aneurisms due to stress.

Don't take my word for it, though. Here's a sampling of warnings and predictions from around the industry:

“An increasing number of application-layer attacks, which older DDoS detection and mitigation infrastructure can’t identify and block, are forcing companies to make new investments in DDoS solutions.”1

"The challenge with application-layer attacks is to distinguish human traffic from bot traffic, so DDoS mitigation providers often use browser fingerprinting techniques like cookie tests and JavaScript tests to determine if requests actually come from real browsers. Launching DDoS attacks from hidden, but real browser instances running on infected computers makes this type of detection very hard.

“We’ve been seeing more and more usage of application-layer attacks during the last year,” Gaffan said, adding that evasion techniques are also adopted rapidly."2

"In a report titled, “Arming Financial and E-Commerce Services Against Top 2013 Cyberthreats,” Gartner forecasts that 25% of ALL DDoS attacks in 2013 will be application-based."3

The inevitably of application layer attacks on your very own applications is why it's increasingly important to understand the difference between network security and application security. The two are not the same, and they require very different solutions.

Increasingly, it is posited that SDN is well-suited to answer the ever presence and growing challenge attackers present to security ops. Given its dynamic and software-defined (separated control plane) nature, that makes sense - when we're talking about the network, at least.

SDN and Security
It is important - very important - to remember that SDN architectures, by design, only provide the visibility and control required to implement security at the lower order layers of the network stack. Specifically, layers 2-4. That's data link, IP, and TCP (and sometimes UDP) for the uninitiated.

Note that nowhere in that list is "application" mentioned. The application layer is way up at the top - at layer 7 - and in 64% of applications4 that means HTTP.

Interestingly, there's nothing stopping an SDN "application" from inserting itself into the SDN controller (via the northbound API) and providing application layer security by acting as a full proxy and inspecting every single packet. Well, nothing except for scalability and performance of the SDN controller, which was not designed to be a part of the active data path. The architecture was designed to focus on the network, on forwarding packets and managing flows, not inspecting application layer transport protocols and the data it carries. But that's exactly what's necessary to provide the kind of application layer defenses required in this brave, new application attack-based environment. Inspection of payloads, not packets. Evaluation of clients, not connections.

network-versus-application-security

This is not to say that an overarching SDN architecture can't provide for both network and application layer security.  An integrated solution comprising both network and application-layer elements will ultimately provide the comprehensive top-to-bottom (of the stack) security desperately needed to defend against attackers. What you won't see are SDN applications that provide true application-layer security. For that, you'll need focused data path elements and, most likely, an application service management and orchestration component to control those elements. The application service management  and orchestration component then integrates with the SDN controller (control plane) and executes via service chaining (data plane) to enable defense of the entire network - and applications.

sdn-big-picture

What's most important to remember is that network security is not application security. Whether you're trying to figure out how SDN is going to fit into the larger information security architecture or just trying to prepare for the next wave of attacks, evaluate your readiness for both types of security measures and policies.

1. Application-layer attacks sparking new investments in DDoS solutions

2.  Application-layer DDoS attacks are becoming increasingly sophisticated

3. Gartner: Application Layer DDoS Attacks to Increase in 2013

4. Based on F5 iHealth statistics from 55,270 BIG-IP systems (Aug 2013)

More Stories By Lori MacVittie

Lori MacVittie is responsible for education and evangelism of application services available across F5’s entire product suite. Her role includes authorship of technical materials and participation in a number of community-based forums and industry standards organizations, among other efforts. MacVittie has extensive programming experience as an application architect, as well as network and systems development and administration expertise. Prior to joining F5, MacVittie was an award-winning Senior Technology Editor at Network Computing Magazine, where she conducted product research and evaluation focused on integration with application and network architectures, and authored articles on a variety of topics aimed at IT professionals. Her most recent area of focus included SOA-related products and architectures. She holds a B.S. in Information and Computing Science from the University of Wisconsin at Green Bay, and an M.S. in Computer Science from Nova Southeastern University.

@ThingsExpo Stories
You think you know what’s in your data. But do you? Most organizations are now aware of the business intelligence represented by their data. Data science stands to take this to a level you never thought of – literally. The techniques of data science, when used with the capabilities of Big Data technologies, can make connections you had not yet imagined, helping you discover new insights and ask new questions of your data. In his session at @ThingsExpo, Sarbjit Sarkaria, data science team lead ...
In his session at @ThingsExpo, Chris Klein, CEO and Co-founder of Rachio, will discuss next generation communities that are using IoT to create more sustainable, intelligent communities. One example is Sterling Ranch, a 10,000 home development that – with the help of Siemens – will integrate IoT technology into the community to provide residents with energy and water savings as well as intelligent security. Everything from stop lights to sprinkler systems to building infrastructures will run ef...
SYS-CON Events announced today that Peak 10, Inc., a national IT infrastructure and cloud services provider, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Peak 10 provides reliable, tailored data center and network services, cloud and managed services. Its solutions are designed to scale and adapt to customers’ changing business needs, enabling them to lower costs, improve performance and focus inter...
Artificial Intelligence has the potential to massively disrupt IoT. In his session at 18th Cloud Expo, AJ Abdallat, CEO of Beyond AI, will discuss what the five main drivers are in Artificial Intelligence that could shape the future of the Internet of Things. AJ Abdallat is CEO of Beyond AI. He has over 20 years of management experience in the fields of artificial intelligence, sensors, instruments, devices and software for telecommunications, life sciences, environmental monitoring, process...
Increasing IoT connectivity is forcing enterprises to find elegant solutions to organize and visualize all incoming data from these connected devices with re-configurable dashboard widgets to effectively allow rapid decision-making for everything from immediate actions in tactical situations to strategic analysis and reporting. In his session at 18th Cloud Expo, Shikhir Singh, Senior Developer Relations Manager at Sencha, will discuss how to create HTML5 dashboards that interact with IoT devic...
So, you bought into the current machine learning craze and went on to collect millions/billions of records from this promising new data source. Now, what do you do with them? Too often, the abundance of data quickly turns into an abundance of problems. How do you extract that "magic essence" from your data without falling into the common pitfalls? In her session at @ThingsExpo, Natalia Ponomareva, Software Engineer at Google, will provide tips on how to be successful in large scale machine lear...
The IoTs will challenge the status quo of how IT and development organizations operate. Or will it? Certainly the fog layer of IoT requires special insights about data ontology, security and transactional integrity. But the developmental challenges are the same: People, Process and Platform. In his session at @ThingsExpo, Craig Sproule, CEO of Metavine, will demonstrate how to move beyond today's coding paradigm and share the must-have mindsets for removing complexity from the development proc...
SYS-CON Events announced today that Ericsson has been named “Gold Sponsor” of SYS-CON's @ThingsExpo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. Ericsson is a world leader in the rapidly changing environment of communications technology – providing equipment, software and services to enable transformation through mobility. Some 40 percent of global mobile traffic runs through networks we have supplied. More than 1 billion subscribers around the world re...
You deployed your app with the Bluemix PaaS and it's gaining some serious traction, so it's time to make some tweaks. Did you design your application in a way that it can scale in the cloud? Were you even thinking about the cloud when you built the app? If not, chances are your app is going to break. Check out this webcast to learn various techniques for designing applications that will scale successfully in Bluemix, for the confidence you need to take your apps to the next level and beyond.
There is an ever-growing explosion of new devices that are connected to the Internet using “cloud” solutions. This rapid growth is creating a massive new demand for efficient access to data. And it’s not just about connecting to that data anymore. This new demand is bringing new issues and challenges and it is important for companies to scale for the coming growth. And with that scaling comes the need for greater security, gathering and data analysis, storage, connectivity and, of course, the...
SYS-CON Events announced today that Fusion, a leading provider of cloud services, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Fusion, a leading provider of integrated cloud solutions to small, medium and large businesses, is the industry's single source for the cloud. Fusion's advanced, proprietary cloud service platform enables the integration of leading edge solutions in the cloud, including cloud...
Digital payments using wearable devices such as smart watches, fitness trackers, and payment wristbands are an increasing area of focus for industry participants, and consumer acceptance from early trials and deployments has encouraged some of the biggest names in technology and banking to continue their push to drive growth in this nascent market. Wearable payment systems may utilize near field communication (NFC), radio frequency identification (RFID), or quick response (QR) codes and barcodes...
The increasing popularity of the Internet of Things necessitates that our physical and cognitive relationship with wearable technology will change rapidly in the near future. This advent means logging has become a thing of the past. Before, it was on us to track our own data, but now that data is automatically available. What does this mean for mHealth and the "connected" body? In her session at @ThingsExpo, Lisa Calkins, CEO and co-founder of Amadeus Consulting, will discuss the impact of wea...
SYS-CON Events announced today that DatacenterDynamics has been named “Media Sponsor” of SYS-CON's 18th International Cloud Expo, which will take place on June 7–9, 2016, at the Javits Center in New York City, NY. DatacenterDynamics is a brand of DCD Group, a global B2B media and publishing company that develops products to help senior professionals in the world's most ICT dependent organizations make risk-based infrastructure and capacity decisions.
The IoT has the potential to create a renaissance of manufacturing in the US and elsewhere. In his session at 18th Cloud Expo, Florent Solt, CTO and chief architect of Netvibes, will discuss how the expected exponential increase in the amount of data that will be processed, transported, stored, and accessed means there will be a huge demand for smart technologies to deliver it. Florent Solt is the CTO and chief architect of Netvibes. Prior to joining Netvibes in 2007, he co-founded Rift Technol...
We’ve worked with dozens of early adopters across numerous industries and will debunk common misperceptions, which starts with understanding that many of the connected products we’ll use over the next 5 years are already products, they’re just not yet connected. With an IoT product, time-in-market provides much more essential feedback than ever before. Innovation comes from what you do with the data that the connected product provides in order to enhance the customer experience and optimize busi...
SYS-CON Events announced today that Stratoscale, the software company developing the next generation data center operating system, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Stratoscale is revolutionizing the data center with a zero-to-cloud-in-minutes solution. With Stratoscale’s hardware-agnostic, Software Defined Data Center (SDDC) solution to store everything, run anything and scale everywhere...
Angular 2 is a complete re-write of the popular framework AngularJS. Programming in Angular 2 is greatly simplified – now it's a component-based well-performing framework. This immersive one-day workshop at 18th Cloud Expo, led by Yakov Fain, a Java Champion and a co-founder of the IT consultancy Farata Systems and the product company SuranceBay, will provide you with everything you wanted to know about Angular 2.
SYS-CON Events announced today that Men & Mice, the leading global provider of DNS, DHCP and IP address management overlay solutions, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. The Men & Mice Suite overlay solution is already known for its powerful application in heterogeneous operating environments, enabling enterprises to scale without fuss. Building on a solid range of diverse platform support,...
Whether your IoT service is connecting cars, homes, appliances, wearable, cameras or other devices, one question hangs in the balance – how do you actually make money from this service? The ability to turn your IoT service into profit requires the ability to create a monetization strategy that is flexible, scalable and working for you in real-time. It must be a transparent, smoothly implemented strategy that all stakeholders – from customers to the board – will be able to understand and comprehe...