Cloudflare response to CPDoS exploits

Three vulnerabilities were disclosed as Cache Poisoning Denial of Service attacks in a paper written by Hoai Viet Nguyen, Luigi Lo Iacono, and Hannes Federrath of TH Köln - University of Applied Sciences. These attacks are similar to the cache poisoning attacks presented last year at DEFCON.

Most customers do not have to take any action to protect themselves from the newly disclosed vulnerabilities. Some configuration changes are recommended if you are a Cloudflare customer running unpatched versions of Microsoft IIS and have request filtering enabled on your origin or b) have forced caching of HTTP response code 400 through the use of page rules or Cloudflare Workers.

We have not seen any attempted exploitation of the vulnerabilities described in this paper.

Maintaining the integrity of our content caching infrastructure and ensuring our customers are able to quickly and reliably serve the content they expect to their visitors is of paramount importance to us. In practice, Cloudflare ensures caches serve the content they should in two ways:

1. We build our caching infrastructure to behave in ways compliant with industry standards.
2. We actively add defenses to our caching logic to protect customers from common caching pitfalls. We see our job as Continue reading

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What to Look for When Choosing a VPN

We welcome this guest post from Top10VPN.com, an Organization Member of the Internet Society.

The search for online privacy has driven a quarter of the world’s Internet users to download a Virtual Private Network (VPN). VPN services are now an important tool for anyone concerned about security and privacy on public networks.

There’s a world of difference between VPNs, though. Without clear and unbiased information many users are forced to navigate their choice of VPN without much clarity.

Why is choosing the right VPN provider so important?

Whenever you switch on a VPN you are entrusting its provider with your personal data, browsing activity, and sometimes even your security. For this reason, VPN providers must be held to a higher standard than most products. It’s important you do your due diligence when making a decision.

What should I look out for? 

A good VPN will ensure that no one – even the VPN itself – can see what the user is doing online. Consider the following qualities:

Technical Security

The most secure VPN services will be transparent about the measures they have in place to safeguard their users and their business.

Any VPN worth its salt will offer Continue reading

IDG Contributor Network: The evolution to Secure Access Service Edge (SASE) is being driven by necessity

The WAN consists of network and security stacks, both of which have gone through several phases of evolution. Initially, we began with the router, introduced WAN optimization, and then edge SD-WAN. From the perspective of security, we have a number of firewall generations that lead to network security-as-a-service. In today’s scenario, we have advanced to another stage that is more suited to today’s environment. This stage is the convergence of network and security in the cloud.For some, the network and security trends have been thought of in terms of silos. However, the new market category of secure access service edge (SASE) challenges this ideology and recommends a converged cloud-delivered secure access service edge.To read this article in full, please click here

1Password is changing the way enterprises secure their data

Data breaches are a nightmare for any company. The expenses for mitigation and the loss of trust from customers and clients can be devastating, even putting some companies out of business. That’s why it’s so important to put security at the very core of your enterprise; it shouldn’t be an afterthought. That’s where 1Password Business can help: it’s easy to implement, cost-effective, and can provide a measurable impact on security just days after roll out. 1Password Advanced Protection provides extensive monitoring tools, giving you — and not the malicious actors threatening your business —  control of your security.To read this article in full, please click here

Who DDoS’d Austin?

It was a scorching Monday on July 22 as temperatures soared above 37°C (99°F) in Austin, TX, the live music capital of the world. Only hours earlier, the last crowds dispersed from the historic East 6th Street entertainment district. A few blocks away, Cloudflarians were starting to make their way to the office. Little did those early arrivers know that they would soon be unknowingly participating in a Cloudflare time honored tradition of dogfooding new services before releasing them to the wild.

6th East Street, Austin Texas

Dogfooding is when an organization uses its own products. In this case, we dogfed our newest cloud service, Magic Transit, which both protects and accelerates our customers’ entire network infrastructure—not just their web properties or TCP/UDP applications. With Magic Transit, Cloudflare announces your IP prefixes via BGP, attracts (routes) your traffic to our global network edge, blocks bad packets, and delivers good packets to your data centers via Anycast GRE.

We decided to use Austin’s network because we wanted to test the new service on a live network with real traffic from real people and apps. Continue reading

Junos Policy Based VPNs – Part 4 of 4 – Recap

I figured I would take a moment and recap theses past few posts and talk about the different methods now …

Continue reading →

The post Junos Policy Based VPNs – Part 4 of 4 – Recap appeared first on Fryguy's Blog.

Master the Alternate "Public Cloud Networking" Universe

You probably heard me say “networking engineer encountering a public cloud feels like Alice in Wonderland” - packet forwarding works in a different way in every public cloud, subnets are a mix between routed interfaces and VRFs, you cannot change IP addresses without involving the orchestration system…

We covered the networking aspects of Amazon Web Services and Azure in our cloud webinars, but you might need a bigger picture:

Gartner crystal ball: Looking beyond 2020 at the top IT-changing technologies

ORLANDO –  Forecasting long-range IT technology trends is a little herding cats – things can get a little crazy.But Gartner analysts have specialized in looking forwardth, boasting an 80 percent  accuracy rate over the years, Daryl Plummer, distinguished vice president and Gartner Fellow told the IT crowd at this year’s IT Symposium/XPO.  Some of those successful prediction have included the rise of automation, robotics, AI technology  and other ongoing trends.Now see how AI can boost data-center availability and efficiency Like some of the other predictions Gartner has made at this event, this year’s package of predictions for 2020 and beyond is heavily weighted toward the human side of technology rather than technology itself. To read this article in full, please click here

Gartner crystal ball: Looking beyond 2020 at the top IT-changing technologies

ORLANDO –  Forecasting long-range IT technology trends is a little herding cats – things can get a little crazy.But Gartner analysts have specialized in looking forwardth, boasting an 80 percent  accuracy rate over the years, Daryl Plummer, distinguished vice president and Gartner Fellow told the IT crowd at this year’s IT Symposium/XPO.  Some of those successful prediction have included the rise of automation, robotics, AI technology  and other ongoing trends.Now see how AI can boost data-center availability and efficiency Like some of the other predictions Gartner has made at this event, this year’s package of predictions for 2020 and beyond is heavily weighted toward the human side of technology rather than technology itself. To read this article in full, please click here

How IT pros deal with SD-WAN security concerns

SD-WAN technology is becoming increasingly popular because it's less expensive, more flexible and easier to deploy than MPLS, it provides centralized visibility and management, and it boosts the overall performance of WAN links, which makes employees more productive. But enabling end users in branch offices to connect directly to the public internet and to cloud services raises serious security concerns, which adds another level of complexity and risk to an SD-WAN rollout. To read this article in full, please click here(Insider Story)

Gartner crystal ball: Looking beyond 2020 at the top IT-changing technologies

ORLANDO –  Forecasting long-range IT technology trends is a little herding cats – things can get a little crazy.But Gartner analysts have specialized in looking forwardth, boasting an 80 percent  accuracy rate over the years, Daryl Plummer, distinguished vice president and Gartner Fellow told the IT crowd at this year’s IT Symposium/XPO.  Some of those successful prediction have included the rise of automation, robotics, AI technology  and other ongoing trends.Now see how AI can boost data-center availability and efficiency Like some of the other predictions Gartner has made at this event, this year’s package of predictions for 2020 and beyond is heavily weighted toward the human side of technology rather than technology itself. To read this article in full, please click here

AT&T, Sprint, T-Mobile US, Verizon CTOs Diverge on 5G

Securing open source: a brief look at dependency management

Taking full advantage of all that IT automation and orchestration have to offer frequently involves combining IT infrastructure automation with in-house application development. To this end, open source software is often used to speed development. Unfortunately, incorporating third-party software into your application means incorporating that third-party software’s vulnerabilities, too.

Scanning for, identifying, and patching open source dependencies in an application’s codebase is known as dependency management, and it’s increasingly considered a critical part of modern development. A recent report found that 60% of open source programs audited had a vulnerability that’s already been patched. With 96% of all code using open source libraries, this is a problem that impacts everyone.

There are many dependency management products available; too many to list in a single blog post. That said, we’ll look at some examples of well-known dependency management products that fall into three broad categories: free, open source software; commercial software with a free tier; and commercial software without a free tier.

Some dependency management products rely on open source vulnerability lists (the most famous of which is supplied by the National Institute of Standards and Technology [NIST]). Some products are commercial, and use closed databases (often in combination with the Continue reading

A Look Inside the Groq Approach to AI Inference

If the only thing you really know to date about machine learning chip startup, Groq, is that it is led by one of the creators of Google’s TPU and that will target inference, don’t worry, you didn’t miss anything. …

A Look Inside the Groq Approach to AI Inference was written by Nicole Hemsoth at The Next Platform.

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