Avast blog: Return of the Mirai botnet

Remember Mirai? This four-year old botnet was the scourge of the internet and used as the launching pad for numerous DDoS attacks. It continues to be the basis for new attacks, and I blog about this for Avast here. There are several mitigation measures you can take, including  using a free tool from F-Secure that can check your router for any potential weaknesses. You might also use this to put a more complete program in place to ensure all critical network infrastructure has appropriately complex and unique passwords. 

Lessons learned from the Home Depot breach

You might have forgotten about the massive Home Depot data breach. After all, it happened in 2014. More then 56M customers’ payment card data was exposed as a result of malware being installed on the self-checkout lanes in numerous stores. (While I haven’t been in any store in a while, I do recall those self-checkout lanes to be annoying and spending time rescanning my items.) The malware operated for several months before it was detected and removed. At the time, it was the largest breach on record. The main cause of the breach was stolen third-party credentials. A report that SANS has put together is an excellent analysis of what happened.

The company was fined $17.5M as a result as part of a settlement which was announced this past week with various state and federal officials. Reviewing the press release was quite revealing (for once) because it lists a number of action items that Home Depot had agreed to implement to prevent further breaches. These include:

  • Having a Chief Information Security Officer report to C-level executives and the Board of Directors
  • Providing resources necessary to fully implement the company’s information security program, including a comprehensive security awareness and privacy training program
  • Employing specific security safeguards with respect to logging and monitoring, access controls, password management, two-factor authentication, file integrity monitoring, firewalls, and data encryption controls
  • Regular vulnerability scans of their networks that includes risk assessments, penetration testing, intrusion detection, and vendor account management
  • Appropriate network segmentation of their POS equipment and other sensitive areas

One would hope that in the past six years they have actually done all of these. Yes, our legal system moves quite slowly. But it is a handy reference list for all of us to evaluate the IT security of our own businesses. And it isn’t as simple as turning on all the features of their endpoint protection tool (something that Home Depot didn’t do back in 2014 for some odd reason) but implementing more system-wide efforts that need continuous attention. For example, the POS was running Windows XP, which was outdated and quite vulnerable even in 2014.

IT security isn’t a destination, but an evolutionary process. Take your eyes off the ball and you’ll find yourself in a similar situation to Home Depot.

Network Solutions blog: What is Identity and Access Management and How Does It Protect High-Profile Users?

Microsoft AccountGuard banner Image

My latest blog for Network Solutions is about identity and access management. Our email accounts have become our identity, for better and worse. Hackers exploit this dependency by using more clever phishing lures. Until recently, enterprises have employed very complex and sophisticated mechanisms to manage and protect our corporate identities and control access to our files and other network resources. What has changed recently are two programs from Microsoft and Google that are designed to help combat phishing. They are aimed at helping higher-risk users who want enterprise-grade identity and access management security without the added extra cost and effort to maintain it. The two programs are called AccountGuard (Microsoft) and Advanced Security (Google). In my blog post, I explain what these two programs are all about.

Network Solutions blog: Honeypot Network Security, What It Is and How to Use It Defensively

What is a Honeypot | Honeynets, Spam Traps & more | ImpervaThe original idea behind honeypot security was to place a server on some random Internet link and sit back and wait until some hacker happened by. The server’s sole purpose would be to record the break-in attempt — it would not be part of a normal applications infrastructure. Then a researcher would observe what happened to the server and what exploit was being used. A honeypot is essentially bait (passwords, vulnerabilities, fake sensitive data) that’s intentionally made very tempting and accessible. The goal is to deceive and attract a hacker who attempts to gain unauthorized access to your network.

In this blog for Network Solutions, I describe their role in modern network security, compare the features of various commercial and open source products, and provide a series of tips on how to pick the right kind of deception product to fit your business’ needs.

Book review: Alice and Bob learn appsec by Tanya Janca

If you are looking to boost your career in application security, there is no better place to start than by reading a copy of Tanya Janca’s new book Alice and Bob Learn Application Security. Janca has been doing security education and consulting for years and is the founder of We Hack Purple, an online learning academy, community and weekly podcast that revolves around teaching everyone to create secure software. She lives in Victoria BC, one of my favorite places on the planet, and is one of my go-to resources to explain stuff that I don’t understand. She is a natural-born educator, with a deep well of resources that comes not just from being a practitioner, but someone who just oozes tips and tools to help you secure your stuff.

Take these two examples:

The book is both a crash course for newbies as well as a refresher for those that have been doing the job for a few years. I learned quite a few things and I have been writing about appsec for more than a decade. The audience is primarily for application developers, but it can be a useful organizing tool for IT managers that are looking to improve their infosec posture, especially these days when just about every business has been penetrated with malware, had various data leaks, and could become a target from the latest Internet-based threat. Everyone needs to review their application portfolio carefully for any potential vulnerabilities since many of us are working from home on insecure networks and laptops.

Her rough organizing framework for the book has to do with the classic system development lifecycle  that has been used for decades. Even as the nature of software coding has changed to more agile and containerized sprints, this concept is still worth using, if security is thought of as early in the cycle as possible. My one quibble with the book is that this framework is fine but there are many developers who don’t want to deal with this — at their own peril, sadly. For the vast majority of folks, though, this is a great place to start.

Alice and Bob are that dynamic duo of infosec that are often foils for good and bad practices, are used as teaching examples that reek of events drawn from Janca’s previous employers and consulting gigs.

For example, you’ll learn the differences between pepper and salt: not the condiments but their security implications. “No person or application should ever be able to speak directly to your database,” she writes. The only exceptions are your apps or your database admins. What about applications that make use of variables placed in a URL string? Not a good idea, she says, because a user could see someone else’s account, or leave your app open to a potential injection attack. “Never hard code anything, ever” is another suggestion  because by doing so you can’t trust the application’s output, and the values that are present in your code could compromise sensitive data and secrets.

“When data is sensitive, you need to find out how long your app is required to store it and create a plan for disposing of it at the end of its life.” Another great suggestion for testing the security of your design is to look for places where there is implied trust, and then remove that trust and see what breaks in your app.

Never write your own security code if you can make use of ones that are part of your app dev framework. And spend time on improving your “soft skills” as a developer: meaning learning how to communicate with your less-technical colleagues. “This is especially true, when you feel that the sky is falling and you aren’t getting any management buy-in for your ideas.”

One topic that she returns to frequently is what she calls technical debt. This is a sadly too-often situation, whereby programmers make quick and dirty development decisions. It reflects the implied costs of reworking the code in your program due to taking shortcuts, shortcuts that eventually will catch up with you and have major security implications. She talks about how to be on the lookout and how to avoid this style of thinking.

What endpoint protection solutions are available today (conference talk)

We are experiencing a changing nature of cyberattacks, especially as the world has moved towards more working from home. These attacks have evolved with the changing nature of our enterprise networks. Back when everyone was working from well-defined offices, we could definitely state that there was a difference between what was considered “outside” and “inside” the corporate network. But then the Internet happened, and we all became connected. Even before the pandemic, there was little difference. With the advent of the cloud, and definitely since the pandemic began, we are now all considered out. We are all working from home, using devices that aren’t necessarily ones that IT has purchased and sharing them with other family members. In my talk talk, I want to identify some trends that have changed the endpoint detection and response marketplace, and examine a few of the EDR products and show how they have evolved as well to meet these new collection of threats.

In this talk, which I gave at the Work From Anywhere conference sponsored by 1e in London, I describe some of the challenges and compare 1e’s Tachyon with two other endpoint tools, Tanium and Carbon Black.

FIR B2B podcast #143: Mitch Ratcliffe On How COVID is Making All Marketing Local Again

Mitch Ratcliffe is a business, product and content marketing leader with 35 years of experience in local media, technology marketing, online and broadcast publishing. Among the successful businesses he’s helped launch are the ON24 conferencing platform and BuzzLogic influencer marketing agency. He’s also served on the founding board of directors of Match.com. Mitch shares our publication lineage with roles at Ziff-Davis, CMP and numerous other publishers. And he has a bionic neck

We spoke to Mitch about this recent post on Metaforce, his current digs. It touches on the changes that COVID-19 has wrought with modern B2B marketing. The new rule, he asserts, is to let no communication be wasted but also let no message waste your customer’s time. Engagement is an exercise in listening and serving, not selling.

One of the lasting effects of the pandem is that customers are embedded in their lives, not our brands.  That means the last marketing mile matters: The local network of SMBs and service providers associated with your brand creates a base of deeply engaged influencers who can work on your behalf. All marketing is going local in COVID’s wake. 

Listen to our 20 minute podcast here.

Avast blog: Understanding and preventing Cross-Site Scripting attacks

You wouldn’t think an attack method that was first found more than 20 years ago would be at the top of anyone’s list of popular current attacks. But that is the case for Cross-Site Scripting (XSS), a method that was first discovered by Microsoft engineers at the turn of the century. Avast’s XSS explainer webpage goes into more detail about the different attack types and some of the more notable attacks and victims down through the years. Top marks were issued by MITRE’s Common Weakness Enumeration group, which also listed 24 other dangerous software weaknesses.

I describe what all is involved with XSS attacks and some of the more notable ones of recent memory, along with how you can prevent them, in my blog post for Avast here.

RSA Blog: your endpoints are the new perimeter

Remember when firewalls first became popular? When enterprises began installing firewalls in earnest, they quickly defined our network’s protective perimeter. Over the years, this perimeter has evolved from a hardware focus to one more defined by software, to where Bruce Schneier officially proclaimed their ultimate death a few years ago.

Part of this evolution is the changing nature of the attacks we experience along with the changing nature of our enterprise networks. In my blog post for RSA today, I review this evolution and talk about how we are all out, as that wise infosec sage Jerry Seinfeld mentions in his first monologue for his TV series above. What we have come to is that endpoint detection and response tools have to do a lot more these days than just scan for malware and compromises.

 

 

Network Solutions blog: Ways to Identify and Prevent Vishing Attacks

In my latest blog post for Network Solutions, I explain vishing, or voice-based phishing attacks. It is a more modern and sophisticated version of a crank call. Only instead of being placed by bored teenagers, it is a very targeted and dangerous call that can get you to do the caller’s bidding. The vishers are getting more clever at constructing their lures and scams. Spoofing isn’t the only tool these guys abuse. Another is the underpinning of any good social engineering effort: collecting as much data about you as possible, to make their request more personal and more believable. My post has several suggestions to keep in mind the next time you get one of these calls.