Today, we’re going to revisit our Q&A series. If you have any questions about malware, blacklisting, or security in general, send them to us at: [email protected]. For all the “Ask Sucuri” answers, go here. Question: How do I know who is logging into my WordPress site? Answer: One of the most basic and important security […]
Making code better with reviews
In the past we’ve written about how CloudFlare isn’t afraid to rip out and replace chunks of code that have proved to be hard to maintain or have simply reach end of life. For example, we wrote a brand new DNS server and replaced our old DNS infrastructure with it. Doing so was greatly helped […]
Remote File Upload Vulnerability in WordPress MailPoet Plugin (wysija-newsletters)
Marc-Alexandre Montpas, from our research team, found a serious security vulnerability in the MailPoet WordPress plugin. This bug allows an attacker to upload any file remotely to the vulnerable website (i.e., no authentication is required). This is a serious vulnerability, The MailPoet plugin (wysija-newsletters) is a very popular WordPress plugin (over 1,700,000 downloads). This vulnerability […]
TimThumb WebShot Code Execution Exploit (0-day)
If you are still using Timthumb after the serious vulnerability that was found on it last year, you have one more reason to be concerned. A new 0-day was just disclosed on TimThumb’s “Webshot” feature that allows for certain commands to be executed on the vulnerable website remotely (no authentication required). With a simple command, […]
SPAM Hack Targets WordPress Core Install Directories
Do you run your website on WordPress? Have you checked the integrity of your core install lately for SPAM like “Google Pharmacy” stores or other fake stores? We have been tracking and analyzing a growing trend in SEO Spam (a.k.a., Search Engine Poisoning (SEP)) attacks in which thousands of compromised WordPress websites are being used […]
Disclosure: Remote Code Execution Vuln in Disqus
We recently found a security vulnerability in the Disqus Comment System plugin for WordPress. It could, under very specific conditions, allow an attacker to perform arbitrary remote code execution (RCE). In other words, an attacker can do anything he wants with a vulnerable website. While the flaw itself is very dangerous, it may only be […]
Case Study: Complexities of “simple” malware
You know when you pull a string on a sweater and it just keeps going and going? You wonder when or if it will ever stop? From time to time, that’s how malware can feel. Even if you’re not a website security expert, it’s important to understand just how complicated hackers are willing to make […]
Q&A with Ryan Lackey
Lackey being hoisted onto Sealand in the North Sea circa 2000 How did you get into computer security? I started using the Internet when I was young—in the early 1990s, before I was a teenager. I was drawn to security for two main reasons: First, I was interested in how individuals could stand up to […]
CloudFlare Acquires CryptoSeal
We’re excited to announce that CloudFlare has acquired the Trusted Computing and virtual private network (VPN) as a service company CryptoSeal. CryptoSeal was founded by Ryan Lackey, a well-known engineer in the security community whom we’ve admired for some time. The company was funded by Y Combinator and angel investors from the security community. At […]
Is my website hacked? If you have to ask then, “Yes.”
The problem with phishing, and therefore the reason so many people have trouble with it, is that the code is fairly benign and can be very difficult to spot because it usually looks almost exactly like legitimate code. Oftentimes, a website owner won’t know their site is hacked with a phishing scam until site visitors […]
