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Category Archives for "Networking"

Risky Business #381 — Samy Kamkar on his outlaw days

On this week's show we're chatting with hacker superstar and YouTube phenomenon Samy Kamkar. Samy is a security researcher of note -- his recent hardware hacks have been coming thick and fast. This week I spoke to him about his brush with the law following his unleashing of the Samy worm on MySpace a decade ago, some of his recent research and his plans for the future.

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How Complex Is Your Data Center?

Sometimes it seems like the networking vendors try to (A) create solutions in search of problems, (B) boil the ocean, (C) solve the scalability problems of Google or Amazon instead of focusing on real-life scenarios or (D) all of the above.

Bryan Stiekes from HP decided to do a step in the right direction: let’s ask the customers how complex their data centers really are. He created a data center complexity survey and promised to share the results with me (and you), so please do spend a few minutes of your time filling it in. Thank you!

Take the survey

For future wearables, the network could be you

People who wear networked gadgets all over their bodies may someday become networks themselves.Researchers at the University of California, San Diego, have found a way for wearables to communicate through a person's body instead of the air around it. Their work could lead to devices that last longer on smaller batteries and don't give away secrets as easily as today's systems do. The proliferation of smartphones, smart watches, health monitoring devices and other gear carried close to the body has led to so-called personal area networks that link the gadgets together and provide a path to the Internet through one that has a Wi-Fi or cell radio. Today, those PANs use short-range over-the-air systems like Bluetooth.To read this article in full or to leave a comment, please click here

8 in 10 Internet-connected baby monitors receive ‘F’ grade for security flaws

Despite the negative and wide spread publicity around baby monitor hacks, sadly you shouldn’t expect an end to baby cam hacker stories any time soon. Today Rapid7 publicly disclosed 10 new vulnerabilities in baby monitors made by nine different manufacturers. On a grading scale, eight of the 10 Internet-connected baby monitors scored an “F” and one received a “D” grade.If you were curious about some redactions in the slides during Mark Stanislav’s “The Hand that Rocks the Cradle: Hacking IOT Baby Monitors” presentation at Def Con’s IOT Village, it was due to several new vulnerabilities he uncovered. Stanislav and Tod Beardsley have published a hacking IOT case study on baby monitors (pdf).To read this article in full or to leave a comment, please click here

MPBGP Configuration

Hi everyone, JP here. You know as CCIE candidates, we are faced with one of the most difficult, and grueling, exams the networking world has to offer – the CCIE lab exam. As you may or may not be aware, Frame-Relay was replaced with L3VPN and DMVPN in the R&S Version 5 blueprint update. This means not only will we need to understand our IGP’s, MPLS, and VRF Lite, but we will need to fully understand how to configure MPBGP in order to transport our VPN labels and prefixes across the service provider’s network.

Using a topology from one of our mock labs, let’s have a look into the configuration of MP-BGP and make sure we understand it. Preview the diagram in HD here.

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In a Layer 3 VPN we are driven by the need to advertise customer prefixes across a service provider network, while keeping these customers isolated from one another. To do this using L3VPN, we need to carry more than just the IPv4 unicast address, which is all standard BGP is capable of. Additional information like the MPLS label, VPN label, and route-distinguisher need to be carried from one point of the network to the other. Let’s Continue reading

The unintended consequences of a RASP-focused application security strategy

Runtime application self-protection (RASP) is a promising solution for strengthening the security posture of an application while supporting faster development, but RASP can introduce serious unintended risks, particularly if developers are not producing quality code from the start.

RASP is a technology approach being evangelized by Joseph Feiman, a research vice president and fellow at Gartner. Last fall, in a report entitled “Stop Protecting Your Apps: It’s Time for Apps to Protect Themselves,” Feiman noted that application self-protection must be a CISO’s top priority because “modern security fails to test and protect all apps. Therefore, apps must be capable of security self-testing, self-diagnostics and self-protection.”

To read this article in full or to leave a comment, please click here

CIOs embrace hybrid cloud and software-defined data centers

SAN FRANCISCO – Companies building mobile and Web applications to support their digital businesses depend on a mix of private and public clouds to exchange data, said Bill Fathers, VMware's executive vice president and general manager of cloud services, at the company’s VMworld customer event here Monday. Fathers said companies are struggling to deal with a "fundamental shift in application deployment patterns,” That's forced CIOs to think about "network architecture and data residency." In short: how data is moving back and forth between various on-premises systems and cloud environments the apps connect to. VMware is aiming to address these challenges with its unified hybrid cloud, which includes server, storage and network resources designed to enable companies to run any application on any device. The company announced several new software products in support of this initiative.To read this article in full or to leave a comment, please click here

Despite reports of hacking, baby monitors remain woefully insecure

Disturbing reports in recent years of hackers hijacking baby monitors and screaming at children have creeped out parents, but these incidents apparently haven't spooked makers of these devices.A security analysis of nine baby monitors from different manufacturers revealed serious vulnerabilities and design flaws that could allow hackers to hijack their video feeds or take full control of the devices.The tests were performed by researchers from security firm Rapid7 during the first half of this year and the results were released Tuesday in a white paper. On a scale from A to F that rated their security functionality and implementation, eight of the devices received an F and one a D.To read this article in full or to leave a comment, please click here

The RMS Titanic and cybersecurity

Little known fact: Yesterday was the 30th anniversary of Bob Ballard’s discovery of the RMS Titanic, several hundred miles off the coast of Newfoundland Canada. I’ve recently done some research into the ship, its builders, and its ultimate fate and believe that lessons learned from Titanic may be useful for the cybersecurity community at large. The Titanic tragedy teaches us of: The dangers of technology hubris. The Titanic was designed with the latest technology at the time to withstand severe storms in the north Atlantic. Because of this, the shipbuilders at Harland and Wolff decided to market the ship as “unsinkable.” Likewise, our industry has this absolute love affair with technology. I’m constantly briefed on the latest and greatest prevention or detection engine designed to withstand anything hackers can throw at it. Like the “unsinkable” Titanic, this is nothing but hot air. Bad guys will find ways around all of our defenses over time. Strong security demands people, process, and technology so the industry love affair with technology alone is counterproductive and leaves us susceptible to a sea of cybersecurity icebergs. The need for organizational coordination. There were two inquiries into the Titanic disaster, one in the U.S. Continue reading

How to get security right when embracing rapid software development

Accelerated software development brings with it particular advantages and disadvantages. On one hand, it increases the speed to market and allows for fast, frequent code releases, which trump slow, carefully planned ones that unleash a torrent of features at once. Continuous release cycles also allow teams to fine-tune software. With continuous updates, customers don’t have to wait for big releases that could take weeks or months.

Embracing failure without blame is also a key tenet of rapid acceleration. Teams grow faster this way, and management should embrace this culture change. Those who contribute to accidents can give detailed accounts of what happened without fear of repercussion, providing valuable learning opportunities for all involved.

To read this article in full or to leave a comment, please click here

Check Point’s SandBlast sandbox spells R.I.P for ROP attacks

Check Point is upgrading its sandboxing technology so it catches attacks earlier in the process and makes it harder for adversaries to evade detection.Called SandBlast, the new software monitors CPU activity looking for anomalies that indicate that attackers are using sophisticated methods that would go unnoticed with traditional sandboxing technology, according to Nathan Shuchami, head of threat prevention sales for Check Point.Traditional sandboxes, including Check Point’s, determine whether files are legitimate by opening them in a virtual environment to see what they do. To get past the sandboxes attackers have devised evasion techniques, such as delaying execution until the sandbox has given up or lying dormant until the machine it’s trying to infect reboots.To read this article in full or to leave a comment, please click here

Automating New Network Build – Part 2 (BGP)

In this post we’ll have a look at how to automate a typical BGP setup. This is where configuration may get particularly messy especially in presence of backdoor links and complex routing failover policies. However, as I will show, it is still possible to create a standard set of routing manipulation policies and selectively apply them to the required adjacencies to achieve the desired effect.

Continue reading

Micromanaging networks considered harmful: on (k)nerd knobs

Nerd Knobs (or as we used to call them in TAC, knerd knobs) are the bane of the support engineer’s life. Well, that and crashes. And customer who call in with a decoded stack trace. Or don’t know where to put the floppy disc that came with the router into the router. But, anyway…

What is it with nerd knobs? Ivan has a great piece up this week on the topic. I think this is the closest he gets to what I think of as the real root cause for nerd knobs —

Instead of using cookie-cutter designs, we prefer to carefully craft unique snowflakes that magically integrate the legacy stuff that should have been dead years ago with the next-generation technologies… and every unique snowflake needs at least a nerd knob or two to make it work.

Greg has a response to Ivan up; again, I think he gets close to the problem with these thoughts —

Most IT managers have lost the ability to recognise technical debt and its impacts … Nerd Knobs are symptoms of much deeper problems/technical debt in the networking market and treat the cause not the symptom.

A somewhat orthogonal article caught my eye, Continue reading

Intel’s pint-sized Compute Stick PC powered up with Core M processor

Intel announced a Core M-based version of its Compute Stick pocket PC at the IFA show, part of a small coterie of unexpected announcements Intel made at the trade show here.As expected, Intel formally announced Skylake, its sixth-generation Core processor. Kirk Skaugen, a senior vice president at Intel, called the chip its “best processor ever.”Skylake can scale from over 90 watts down to just 4.5 watts, the power consumed by the Core M, now rebranded as the Core m. That makes it ideal for two-in-ones and even tiny devices like Intel’s Compute Stick, which had used an earlier version of Intel’s Atom processor when it debuted. Intel didn’t announce a price or a ship date for the new Compute Stick, however.To read this article in full or to leave a comment, please click here

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