2014-07-01

Priorities, CVEs, and CVSS

Even after processes are shored up, there will still be a need to prioritize what needs to be fixed next. Hopefully, with vetted and working processes backing up remediation efforts, this clean up will be manageable.

What to do next? Overwhelming operational areas with a giant list will only create a log jam. But, if we're focused on finding every weakness and trying to establish priorities, is that doing the same to TVM groups?

Stop using your vulnerability scanner for patch auditing!

Patch auditing is important, and you should do it, but your vulnerability scanner or sevice can (and should) do so much more.

Patching is designed to address the things you know about (or should know about). What about the things you haven't considered?

At first, this sounds counter-intuitive, but consider the goal for doing a vulnerability scan: to identify unaddressed weaknesses. If you have a patch management program, you already know about patches. If it has gaps, you need to know that, of course. But, what about security baselines? If you focus on auditing your patch management to the exclusion of all else (the noisiest aspect of vulnerability assessment), you run the risk of exposure due to misconfigurations that can be far worse than the patches you've missed.

2014-06-30

How do I prioritize what to fix?

I spent about six years in vulnerability management before I decided to go be a penetration tester. I was frustrated by having to rely on the analysis of others, and on generalized guesswork to determine what made the biggest threat to the organization. I thought that being able to focus on security research and practical penetration would open my eyes to the realities of offense in a way that would help me make the most sense of security as a discipline.

What I found out was enlightening.

2014-05-18

CarolinaCon X Crypto Challenge Writeup

This year, I offered to run the crypto challenge at CarolinaCon X. I was offered the advice that very complex challenges were often met with frustration during the conference and it was requested that I make something that didn't require advanced mathematical degrees or a history of working with the NSA to solve ;)

This year, I offered to run the crypto challenge at CarolinaCon X. I was offered the advice that very complex challenges were often met with frustration during the conference and it was requested that I make something that didn't require advanced mathematical degrees or a history of working with the NSA to solve ;)

With that in mind, Jaku and Ryan Linn were both very generous and offered to help me. 

The below post is a writeup of the challenge, how it went, a solution, and some lessons learned. Don't scroll past the writeup header if you don't want spoilers.

2014-04-14

Personalizing Data Security Part 3

In parts 1 and 2, we talked about various forms of security testing and evaluation by telling a story about a concerned parent purchasing (and evaluating) a car for the newly licensed teenaged daughter. Now, let's talk about the mechanic for a bit.

You, fortunately, have had a car before, and have had the opportunity to work with this mechanic before. He set your expectations, you’ve seen what he’s done before, and you generally have good reasons to trust him because you know what you want is what he is going to give you. You’ve already got a mutually established language. His services are clearly defined. You know what to expect.

What if you’ve never had a car before, and you don’t know any mechanics? 

Personalizing Data Security Part 2

Previously, we created a story that aligns data security with buying the best car for your only teenaged daughter. Now, let's explore the choice between vulnerability assessment and penetration testing - the consequences of your decision as a parent and car buyer.
Since you're tight on budget, you decide it's best to go with the thorough once-over. After all, if you opt for the test drive, you aren't going to find everything that's wrong, anyway. Your goal is to figure out how you should best spend your money now that you know your car has some flaws. Your objective is to figure out which flaws are the most serious, and address them with your wallet.

Personalizing Data Security Part 1

The problem with data security is that it isn't personal. Those who have the responsibility for security often don't have a personal stake. Sometimes, the issue is with jargon. So, let's have story time. What if your environment were a car? What if it wasn't someone else's data, but your child?

Let’s say you are a concerned parent. Your only daughter has just turned old enough to have her first car. You have shopped around for the right car to meet your needs and your budget, and you’ve bought something. But, now you need to make sure it’s safe. Not only does the law require you to meet certain requirements of auto safety, but would you feel terrible if something bad happened to your only daughter because you chose poorly? What about all of her friends who ride with her, and all the other people on the road?

2014-03-24

Understanding, Underachievement, and the Impact of Conformity

Work smarter, not harder does not mean you can replace all your smart employees with tools and cheap button clickers. The fallacy is, tools are not a 1:1 replacement for people. You have the cost of the tool, the cost of the people who use the tool, and the cost of the people who install, maintain, and support the tool.

You can attract the right talent if you pay them what they are worth, treat them with respect, and enable them to support your organizational mission. Consider that as an alternative to silver bullet solutions with complex back ends and major licensing fees.

I have worked within IT for nearly twenty years, and after sacrificing more of my personal life than was reasonable to long hours and countless weekends spent in support of organizational missions, I decided to stay in information technology and join the information security discipline. I did this because I wanted make things better for the millions of people who daily entrust organizations with our financial and personal details either in naiveté (that we cannot be impacted by the loss of the information we share), or in the belief that these organizations are using the data we give them prudently and with due care to protect it. 

2014-02-20

The Singularity

Every now and then, the conversation resurfaces: when will The Singularity occur, and what will we do when it happens?

A basic question about it is, if only the most talented of us are worthy of power, money, and recognition, and if those things are directly related to quality of life, is it ever in our best interest to enable programs to become better at what we do than we are? Of course this hinges on what people define as talent and worth. In business, value is often determined by rarity of skillset, where rarity is diffused by the availability of less expensive alternatives.

It's an important question for technologists, because most of us have spent our careers writing clever scripts or programs to do the tedious parts of what we do. This cleverness has led to business leaders and opportunists to encourage this trend as a means to reduce that rarity and pay less for technologists, or to justify having fewer of them.

It's a familiar argument to Infosec folks: the magic bullet application that protects all things so businesses can cut expenses on headcount.

So, with this observation, I have a proposal.

2013-12-01

5 Questions to ask before starting a Vulnerability Management Program

Many if not most organizations are already operating at a capacity to sustain the existing work without taking on significant amounts of new work. Since a vulnerability scanning program has the potential to add quite a bit more effort, not only for your security staff but also for operations staff, this makes it fairly important to ask the right questions before you commit.

It's all about the man purse

At this point, I don't think it's unreasonable to expect that cell phones and tablets will ultimately merge into a single device, and that it will take over the role of the Roku and DVR as entertainment providers adapt to the online single-show/single-series subscriber models with devices like Chromecast bridging the gap between tiny screens and larger entertainment center experiences. More frightening is the idea that these will become the new house keys and primary home provisioning devices. Right now, people have coined the term "phablet" to describe this bizarre hybrid device, but I don't think that term is broad enough to describe what this will actually become.