So, I recently went to my first RSA Conference. It’s something I’ve had on my radar for a while but never had the opportunity to do. However, with Security Field Day coming up later this year I thought it was high time I went to see what everything was about. Here are some ideas that I came up with during my pilgrimage to the big security conference.
Thanks to all who joined us for the Pulse Secure 2018 Next-Gen Data Center Networking Report Webinar: A Trust Model for Multi-Cloud Networks and Applications Beyond Zero Trust.
Yesterday, we published a blog post sharing the news and some initial details about Amazon’s DNS route hijack event to steal Ethereum cryptocurrency from myetherwallet.com. In this post, we’ll explore more details about the incident from the BGP hijack’s perspective.
As noted by Dyn, CloudFlare, and various other entities who monitor Internet routing and health, Amazon’s Route 53 (the DNS service offered by AWS) prefixes were hijacked. A BGP update taken from Isolario suggests that on 24 April, its BGP feeders were correctly receiving 205.251.192.0/23, 205.251.194.0/23, 205.251.196.0/23, 205.251.198.0/23, originated from Amazon (AS16509), until 11:04:00 (UTC). But, at 11:05:41 (UTC), Isolario recorded the first more specific /24 malicious announcements via BGP feeder and the announcements originated from eNET (AS10297) to its peer 1&1 Internet SE (AS8560). Click to enlarge image.
RIPE Stats collected the first more specific malicious advertisement at 11:05:42 (UTC) originating from eNET (AS10297), but this time through peer Hurricane Electric (AS6939).
Exactly at the same time, 11:05:42 (UTC), the Isolario BGP feeder received another update originating from eNET (AS10297) and it was also coming via Hurricane Electric (AS6939). Click to enlarge image.
Hurricane Electric has a worldwide Continue reading
When asked what superhero they want their future network to be associated with, respondents’ No. 1 pick was the Hulk.
Big Switch’s data center monitoring fabric will add support for public cloud environments including AWS and Azure later this year.
Last week at RSA, more than 30 global companies came together to sign the Cybersecurity Tech Accord “to protect and empower civilians online and to improve the security, stability and resilience of cyberspace.” It is an example of collaboration, which demonstrates the commitment and focus of the signatory companies to take action in order to tackle the significant security threats we are currently facing. It is this type of collective action we have promoted as part of our collaborative security
The Tech Accord is a positive step by large corporations across the globe involved in security to come together in the name of collaboration and make security commitments that resonate with the demands of Internet users everywhere. Per the Accord’s website, there are four main tenets of the Tech Accord:
Another BGP hijacking event is in the news today. This time, the event is affecting the Ethereum cryptocurrency. (Read more about it here, or here.) Users were faced with an insecure SSL certificate. Clicking through that, like so many users do without reading, they were redirected to a server in Russia, which proceeded to empty the user’s wallet. DNSSEC is important to us, so please check out the Deploy360 DNSSEC resources to make sure your domain names are protected. In this post, though, we’ll focus on the BGP hijacking part of this attack.
First, here’s a rundown of routing attacks on cryptocurrency in general – https://btc-hijack.ethz.ch/.
In this case specifically, the culprit re-routed DNS traffic using a man in the middle attack using a server at an Equinix data center in Chicago. Cloudflare has put up a blog post that explains the technical details. From that post:
“This [hijacked] IP space is allocated to Amazon(AS16509). But the ASN that announced it was eNet Inc(AS10297) to their peers and forwarded to Hurricane Electric(AS6939).
“Those IPs are for Route53 Amazon DNS servers. When you query for one of their client zones, those servers Continue reading
Over the few last hours, a dozen news stories have broken about how an attacker attempted (and perhaps managed) to steal cryptocurrencies using a BGP leak.
CC BY 2.0 image by elhombredenegro
The Internet is composed of routes. For our DNS resolver 1.1.1.1 , we tell the world that all the IPs in the range 1.1.1.0
to 1.1.1.255
can be accessed at any Cloudflare PoP.
For the people who do not have a direct link to our routers, they receive the route via transit providers, who will deliver packets to those addresses as they are connected to Cloudflare and the rest of the Internet.
This is the normal way the Internet operates.
There are authorities (Regional Internet Registries, or RIRs) in charge of distributing IP addresses in order to avoid people using the same address space. Those are IANA, RIPE, ARIN, LACNIC, APNIC and AFRINIC.
The broad definition of a BGP leak would be IP space that is announced by somebody not allowed by the owner of the Continue reading
Cyber warfare and cryptomining dominated RSA Conference keynotes and talks with technologists, who advocated a back-to-basics approach to network security.
In this SDxCentral eBrief, we look at the types of security threats that are becoming more prevalent and examine some of the latest techniques and tools that enterprises are employing to make sure that their business assets in the cloud are secure.
We use Cloudflare Access to secure our own internal tools instead of a VPN. As someone that does a lot of work on the train, I can attest this is awesome (though I might be biased). You can see it in action below. Instead of having to connect to a VPN to reach our internal jira, we just login with our Google account and we are good to go:
Before today, you could setup Access if you used GSuite, Okta or Azure AD to manage your employee accounts. Today we would like to announce support for two more Identity Providers with Cloudflare Access: Centrify and OneLogin.
We launched Cloudflare Access earlier this year and have been overwhelmed by the response from our customers and community. Customers tell us they love the simplicity of setting up Access to secure applications and integrate with their existing identity provider solution. Access helps customers implement a holistic solution for both corporate and remote employees without having to use a VPN.
If you are using Centrify or OneLogin as your identity provider you can now easily integrate them with Cloudflare Access and have your team members login with their accounts to securely reach your internal Continue reading
ZTE might look to judicial remedies after the U.S. ban; Huawei lays off its Washington, D.C. liason; and Twitter bans ads from Kaspersky Labs.
As AI and ML begin to reach their full potential, the race is on between network administrators and attackers to implement the technologies into their procedures, for better or for worse.
“The views and opinions expressed are those of the author and not necessarily the positions of the U.S. Army, Department of Defense, or the U.S. Government.” <- I sincerely hope so…— the grugq (@thegrugq) April 22, 2018
“the cyber guns of August” https://t.co/xdybbr5B0E
Traditional security solutions are designed to protect the perimeter. As applications and data are becoming increasingly distributed, they are often spanning not only multiple sites, but also multiple clouds. This is making it harder to identify where the perimeter actually is in order to secure it. But even if the perimeter can be reliably identified, securing it alone is not enough. The east-west traffic inside of the environment must be secured as well. VMware NSX makes security an intrinsic part of the infrastructure that applications and data live on, rather than a bolted-on afterthought; security is built in Day 0.
VMware created a Micro-segmentation Starter Kit to help you get started with securing your network from Planning to Enforcement to Troubleshooting. Each kit includes 6 CPUs of both NSX ADV and vRealize Network Insight ADV at 25% off the global list price.
Breaking into an industry isn’t easy. When you look at the amount of material that is necessary to learn IT skills it can be daunting and overwhelming. Don’t let the for-profit trade school ads fool you. You can’t go from ditch digger to computer engineer in just a few months. It takes time and knowledge to get there.
However, there is one concept in non-technical job roles that feels very appropriate to how we do IT training, specifically for security. And that’s the apprenticeship.
Apprenticeship is a standard for electricians and carpenters. It’s the way that we train new people to do the work of the existing workforce. It requires time and effort and a lot of training. But, it also fixes several problems with the current trend of IT certification:
Cloudflare’s team of security analysts monitor for upcoming threats and vulnerabilities and where possible put protection in place for upcoming threats before they compromise our customers. This post examines how we protected people against a new major vulnerability in the Drupal CMS, nicknamed Drupalgeddon 2.
Two weeks after adding protection with WAF rule ID D0003 which mitigates the critical remote code execution Drupal exploit (SA-CORE-2018-002/CVE-2018-7600), we have seen significant spikes of attack attempts. Since the 13th of April the Drupal security team has been aware of automated attack attempts and it significantly increased the security risk score of the vulnerability. It makes sense to go back and analyse what happened in the last seven days in Cloudflare’s WAF environment.
The vulnerability potentially allows attackers to exploit multiple attack vectors on a Drupal site, which could make a site completely compromised.
Drupal introduced renderable arrays, which are a key-value structure, with keys starting with a ‘#’ symbol, that allows you to alter data during form rendering. These arrays however, did not have enough input validation. This means that an attacker could inject a custom renderable array on one of these keys in the form structure.
An integrated SD-WAN security product would likely involve at least three Cisco technologies: Viptela SD-WAN, Meraki network automation, and Umbrella cloud security.