We leverage OSSEC extensively to help monitor and protect our servers. If you are not familiar with OSSEC, it is an open source Intrusion Detection System (HIDS); it has a powerful correlation and analysis engine that integrates log analysis, file integrity monitoring, centralized policy enforcement, rootkit detection, real-time alerting, and active response. It provides complete coverageRead […]
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RSS feed for this sectionThink Global, Peer Local. Peer with CloudFlare at 100 Internet Exchange Points
Internet Exchange Points (IXPs) or Network Access Points (NAPs) facilities are where networks meet, participating in what’s known as peering, which interconnects various parts of the global Internet. At CloudFlare we are dedicated to peering. So much so that we just joined our 100th Internet Exchange point! Image courtesy of Martin Levy What is peering? […]
Flexible, secure SSH with DNSSEC
If you read this blog on a regular basis, you probably use the little tool called SSH, especially its ubiquitous and most popular implementation OpenSSH. Maybe you’re savvy enough to only use it with public/private keys, and therefore protect yourself from dictionary attacks. If you do then you know that in order to configure access […]
Ransomware Strikes Websites
Ransomware is one of the most insidious types of malware that one can come across. These infections will encrypt all files on the target computer as well as any hard drives connected to the machine – pictures, videos, text files – you name it. This means that all of your files are locked. The attackersRead […]
Malicious Pastebin Replacement for jQuery
Website hackers are always changing tactics and borrowing ideas from each other. One of the challenges of website security is staying on top of those threats as they evolve. We wrote in the past about fake jQuery scripts and how hackers use Pastebin.com to host malware. This time, we will show you an attack thatRead […]
Fake Media Download Sites
Your website is a huge part of your brand reputation. It serves as a place to build your audience and helps you get noticed by new visitors from search engines. You spend time working hard to build authority and trustworthiness. When your pages rank high enough, you may find yourself with a whole new setRead […]
How to Talk to Your Parents About Encryption
It’s December 25th, which means most of you are probably at home visiting with family. I asked a few of the security engineers here at CloudFlare how they explain their jobs when they’re home for the holidays, and most of them responded with something along the lines of, “Oh, I stopped trying to do that […]
Using WPScan: Finding WordPress Vulnerabilities
When using WPScan you can scan your WordPress website for known vulnerabilities within the core version, plugins, and themes. You can also find out if any weak passwords, users, and security configuration issues are present. The database at wpvulndb.com is used to check for vulnerable software and the WPScan team maintains the ever-growing list ofRead […]
Why it’s harder to forge a SHA-1 certificate than it is to find a SHA-1 collision
It’s well known that SHA-1 is no longer considered a secure cryptographic hash function. Researchers now believe that finding a hash collision (two values that result in the same value when SHA-1 is applied) is inevitable and likely to happen in a matter of months. This poses a potential threat to trust on the web, […]
A Different Kind of POP: The Joomla Unserialize Vulnerability
At CloudFlare, we spend a lot of time talking about the PoPs (Points of Presence) we have around the globe, however, on December 14th, another kind of POP came to the world: a vulnerability being exploited in the wild against Joomla’s Content Management System. This is known as a zero day attack, where it has […]
