Spectre and Meltdown Chip Flaws Back From the Dead as ‘Variant 4’
Microsoft and Google security researchers disclosed the new bugs, which affect Intel, AMD, and ARM processors.
Lavelle Networks’ Shyamal Kumar Discusses SD-WAN and the Principles of B4
In this interview with Lavelle Networks CEO Shyamal Kumar he shares his views on SD-WAN and how Lavelle has incorporated some of the principles of B4 to create a pure networking software solution.
SafeKeeper: protecting web passwords using trusted execution environments
SafeKeeper: protecting web passwords using trusted execution environments Krawiecka et al., WWW’18
(If you don’t have ACM Digital Library access, the paper can be accessed either by following the link above directly from The Morning Paper blog site, or from the WWW 2018 proceedings page).
Today’s paper is all about password management for password protected web sites / applications. Even if we assume that passwords are salted and hashed in accordance with best practice (NIST’s June 2017 digital identity guidelines now mandate the use of keyed one-way functions such as CMAC), an adversary that can obtain a copy of the back-end database containing the per-user salts and the hash values can still mount brute force guessing attacks against individual passwords.
SafeKeeper goes a lot further in its protection of passwords. What really stands out is the threat model. SafeKeeper keeps end user passwords safe even when we assume that an adversary has unrestricted access to the password database. Not only that, the adversary is able to modify the content sent to the user from the web site (including active content such as client-side scripts). And not only that! The adversary is also able to read all Continue reading
SD-WAN: Managed or DIY?
In this eBrief from SDxCentral, we compare the pros and cons of using a managed SD-WAN service vs. the DIY model. In addition, we talk to one enterprise about its SD-WAN experience.
masscan, macOS, and firewall
One of the more useful features of masscan is the "--banners" check, which connects to the TCP port, sends some request, and gets a basic response back. However, since masscan has it's own TCP stack, it'll interfere with the operating system's TCP stack if they are sharing the same IPv4 address. The operating system will reply with a RST packet before the TCP connection can be established.The way to fix this is to use the built-in packet-filtering firewall to block those packets in the operating-system TCP/IP stack. The masscan program still sees everything before the packet-filter, but the operating system can't see anything after the packet-filter.
Note that we are talking about the "packet-filter" firewall feature here. Remember that macOS, like most operating systems these days, has two separate firewalls: an application firewall and a packet-filter firewall. The application firewall is the one you see in System Settings labeled "Firewall", and it controls things based upon the application's identity rather than by which ports it uses. This is normally "on" by default. The packet-filter is normally "off" by default and is of little use to normal users.
Also note that macOS changed packet-filters around version 10.10. Continue reading
NSX Workshop: Secure App Infrastructure and Multi-Site Cloud Networking
[Summer 2018] Free NSX Training Workshop near you!
Secure Application Infrastructure and Multi-Site Cloud Networking
What: Attend a half-day lecture and lab designed to get you started with Micro-segmentation and Multi-Site Cloud Networking (Disaster Recovery).
Why: Not only will you get a business and technical overview of NSX Data Center, you’ll also receive hands-on experience with the products. We’ll make sure you leave knowing how NSX can help secure and extend your network across multiple sites, and into the cloud.
Sneak peek (full agenda in registration links):
- Security: Understand your network traffic flows and intelligently create security groups and policies, leveraging vRNI, Service Composer, and Application Rule Manager to secure your network.
- Disaster Recovery: Deep dive into multi-site NSX Data Center topologies, learn how to architect your network overlays, and gain visibility across your virtual and physical networks – all so you can build a resilient and flexible network.
RSVP your spot today (click below):
Rigado Packages IoT-Focused Edge-as-a-Service Platform
The platform relies on Canonical's Ubuntu Core OS and Snaps application packaging system.
Short Take – Security As A Tradeoff
In this episode Russ White talks about how security absolutism is actually detrimental to securing important data and systems, and how shifting our view of security to a balance of tradeoffs would be a much better approach.
Russ White
The post Short Take – Security As A Tradeoff appeared first on Network Collective.
Cisco’s New Security Guru Talks About How to Kill Complexity in 3 Steps
Gee Rittenhouse says security needs to be simpler. The complexity that today's security professionals deal with is overwhelming.
RIPE 76 Sees Strong Focus on Routing Security
The RIPE 76 meeting is happening this week in Marseille, France, held at the fantastic location of the Palais du Pharo overlooking Marseille’s Old Port. And it’s also another record attendance with over 850 people registered.
The first couple of days have primarily been devoted to plenary sessions, and there’s been a big focus on routing security. Erik Bais (A2B Internet) kicked off the discussion with a presentation on ‘Why are we still seeing DDoS traffic?‘, which highlighted that DDoS attacks are still originating from the same networks. Looking at the list of the worst offenders, there’s even one amongst the regular RIPE attendees, and he called for networks to clean up their acts. This was also a good opportunity to highlight the MANRS initiative, which of course includes measures to mitigate amplification attacks, and encourages networks to make good routing practices the norm.
Alexander Azimov (Qrator Labs) reinforced this message by outlining the current problems with BGP, including the ongoing route leaks and hijacks affecting the Internet. There are currently only moral obligations to not use other providers’ address space or to support anti-spoofing policies, yet major providers (including Tier 1 providers) continue to both originate Continue reading
Barracuda Drops Cloud-Delivered Web Application Firewall Service
Verizon’s annual data breach report found web applications had the most breaches in 2017.
Why I’m Joining Cloudflare
I love working as a Chief Security Officer because every day centers around building something that makes people safer. Back in 2002, as I considered leaving my role as a cybercrime federal prosecutor to work in tech on e-commerce trust and safety, a mentor told me, “You have two rewarding but very different paths: you can prosecute one bad actor at a time, or you can try to build solutions that take away many bad actors' ability to do harm at all.” And while each is rewarding in its own way, my best days are those where I get to see harm prevented—at Internet scale.
In 2016, while traveling the United States to conduct hearings on the condition of Internet security as a member of President Obama's cyber commission, my co-commissioners noticed I had fallen into a pattern of asking the same question of every panelist: “Who is responsible for building a safer online environment where small businesses can set up shop without fear?” We heard many answers that all led to the same “not a through street” conclusion: Most law enforcement agencies extend their jurisdiction online, but there are no digital equivalents to the Department of Continue reading
Trump Axes Top Cybersecurity Role, Kaspersky Moves to Switzerland
A new U.S. cybersecurity strategy calls on government agencies to work more closely with private sector companies to reduce risks.
You get TLS 1.3! You get TLS 1.3! Everyone gets TLS 1.3!
It's no secret that Cloudflare has been a big proponent of TLS 1.3, the newest edition of the TLS protocol that improves both speed and security, since we have made it available to our customers starting in 2016. However, for the longest time TLS 1.3 has been a work-in-progress which meant that the feature was disabled by default in our customers’ dashboards, at least until all the kinks in the protocol could be resolved.
With the specification finally nearing its official publication, and after several years of work (as well as 28 draft versions), we are happy to announce that the TLS 1.3 feature on Cloudflare is out of beta and will be enabled by default for all new zones.
For our Free and Pro customers not much changes, they already had TLS 1.3 enabled by default from the start. We have also decided to disable the 0-RTT feature by default for these plans (it was previously enabled by default as well), due to its inherent security properties. It will still be possible to explicitly enable it from the dashboard or the API (more on 0-RTT soon-ish in another blog post).
Our Business and Continue reading
Cryptojacking Is the New Black, Cloud Security Reports Say
One report found that 25 percent of organizations currently have illicit cryptomining activity in their cloud environments.
ADVA Drives Cloud-Native Encryption Into ConnectGuard Platform
The cloud-native update also bolsters the platform's ability to protect against the Spectre and Meltdown processor vulnerabilities.
Tap the Full Potential of Failsafe SD-WAN Q&A
Thanks to all who joined us for the Talari Networks DemoFriday, Tap the Full Potential of Failsafe SD-WAN. During the webinar, Talari Networks demonstrated the latest innovations, product feature updates and UI enhancements to its award-winning SD-WAN platform. After the demo, we took questions from the audience. Below is the full Tap the Full Potential of Failsafe SD-WAN Q&A.
Will Intel White Box uCPE Pass Service Providers’ Taste Tests?
A handful of OEMs are already building products based on the new reference architecture for uCPE.
Encryption Isn’t Perfect, That’s Why Choices Are Important
Encryption is a critical building block for online trust, but it’s never perfect. Any encryption you use is the product of many steps. Encryption methods have to be defined; protocols for implementation have to be specified; and then the protocols have to be implemented. Each step is handled by different people and potentially introduces vulnerabilities along the way. Even with the best lock design in the world, if someone builds the lock with variations in the design (either intentionally or accidentally), it might be easily picked.
When you own a broken lock, you have it fixed or use a different one – encryption is no different.
Yesterday (14 May 2018), the Internet security community was alerted to newly discovered vulnerabilities in the secure email ecosystem, dubbed “EFAIL”. EFAIL can make the content of emails encrypted with PGP and S/MIME readable to an attacker. While there are some fixes users and companies can make to mitigate EFAIL, cases like this underscore the importance of choice when it comes to secure communications.
How does the EFAIL attack work?
EFAIL abuses a combination of vulnerabilities in the OpenPGP and S/MIME specifications and the way that many email clients render remote content in Continue reading