Brute-forcing Emailed PDF Paystub Passwords in 30 seconds

A recurring theme in my InfoSec career has been to expose people to how their seemingly-secure practices are actually very insecure. Today I will show one such practice that is quite common. The idea is insidious in that it lulls people into a false sense of security when it takes only a couple minutes to break. This is similar to the security awareness training I provide: I show the audience a physical lock that is heavy and has the words “Secure” engraved in it. Then I show how it can be picked in 8 seconds. Getting over this cognitive barrier – that something isn’t inherently secure just because it looks that way – is tough for people when they first encounter security. ...

May 17, 2019 · 5 min · 1017 words · Scott Brown

What I Do at Unbounce

I am often asked the question at networking events, “What do you do at Unbounce?” and I never have an engaging answer. I am working on why that is (future article?) but since I am much better at writing, this is what I will try to say. Q: “What do you do at Unbounce?” My position is Head of Security, but that’s when most people’s eyes glaze over or envision me as a security guard. So let me explain it with an example. Have you ever visited a website that was selling a cool new toy, book or idea? Let’s say they ask for your name and email address so you can be put on a notification list when the product is available for purchase. There is a good chance that website is hosted on our system, and your personal data you just submitted is now flowing through our servers and being stored there too. ...

March 8, 2019 · 2 min · 306 words · Scott Brown

Relaxation

I’m learning how to relax for the first time in my life. It’s sounds crazy but no one, not even parents, taught me how to relax. And things that could be relaxing (videogames, reading, playing, talking) were given a negative value because they weren’t seen as productive. One of the symptoms of not relaxing is the inability to let go of things. Another is a mind that races when trying to fall asleep. ...

February 22, 2019 · 3 min · 596 words · Scott Brown

Calculating Vulnerability Alerts with the Github API

At work I recently had to show our risk profile with Github vulnerability alerts and display them in Domo. Github’s APIv3 (REST) doesn’t allow you to query the vulnerability alerts, but APIv4 (GraphQL) does. I found the documentation around gathering those results very opaque due to being in Preview status, so here are some examples for pulling out the data you need. Github Vulnerability Alerts can be enabled in the Settings component of a repository. It will scan the dependencies listed in various package managers (requirements.txt, package.json, etc) and build a dependency graph (super cool!). From there, each dependency is checked for CVEs posted on public vulnerability websites. This is useful information but it is difficult to visualize when you have many (in my case, hundreds) of repositories to watch. ...

February 8, 2019 · 3 min · 529 words · Scott Brown

Implementing a Double-Lock for IAM Role Switching

IAM provides a way for users and roles to become another role. This is known as IAM role switching and uses the underlying sts:AssumeRole action. You can restrict IAM role switching in one of two ways, what I like to call the single lock and double lock methods. With any IAM role switch, there involves a two-way handshake. The person (source) switching to the role (target) must be allowed to assume the role, plus the target must allow the source to assume it. That way, an IAM role switch can be used to switch between roles within the same account, or roles within different AWS account (maybe one that you don’t even own). ...

January 24, 2019 · 3 min · 601 words · Scott Brown

2018 Playlist

These are the songs I was listening to this year. Let’s Get Married – Jagged Edge – J.E. Heartbreak Automaton – Jamiroquai – Automaton Cloud 9 - Fred Falke Remix – Jamiroquai, Fred Falke – Cloud 9 Superfresh – Jamiroquai – Automaton Oh My Gosh – Basement Jaxx – The Singles Lady (Hear Me Tonight) – Madjo – Vintage Ibiza Classics Old Thing Back – Matoma, The Notorious B.I.G., Ja Rule, Ralph Tresvant – Old Thing Back I Know You Want Me (Calle Ocho) – Pitbull – Pitbull Starring In Rebelution Where Them Girls At – David Guetta – Nothing but the Beat Delirious (Boneless) – Steve Aoki, Chris Lake, Tujamo, Kid Ink – Delirious Pay My Rent – DNCE – DNCE U Got Me – Room 5 – Music & You U Don’t Know Me – Armand Van Helden – 2 Future 4 U World, Hold On – Bob Sinclair – Dance Grooves, Vol. 3 The Bomb! (These Sounds Fall Into My Mind) – Kenny Dope, The Bucketheads – Heny Street Bombs Vol. 1 Corner Store – Macklemore, Dave B., Travis Thompson – GEMINI Don’t Call Me Baby – Madison Avenue – Don’t Call Me Baby In My Feelings – Drake – Scorpion Girls Like You - Carbi B Version – Maroon 5, Cardi B – Red Pill Blues I Love It – Kanye West, Lil Pump – I Love It Despacito – Luis Fonsi, Daddy Yankee – Shut Up Lets Dance Steal My Sunshine – Len – You Can’t Stop The Bum Rush Pinch Me – Barenaked Ladies – Maroon All Star – Smash Mouth – Astro Lounge Peanut Butter Jelly – Galantis – Pharmacy Do It Right – Martin Solveig, Tkay Maidza – Do It Right Toy – Netta – Toy Water Me – Lizzo – Water Me And that’s it for 2018! See you next year! ...

December 31, 2018 · 2 min · 310 words · Scott Brown

Forget SSH on AWS, Use SSM SessionManager

I don’t often talk of employer, mainly to keep an arm’s length distance between them and the writing on my blog. However, one of the great things about working at Unbounce is the concept of a Professional Development day (Pro-D). This is just like when you were in school and the teachers would take a day for themselves to improve. At Unbounce, every employee gets one day (8 hours) every 2 weeks to educate themselves and elevate their professional and career interests. Some of my best ideas have come out of things I learned on Pro-D day. Today, I decided to take a moment to learn about the AWS Systems Manager Session Manager (whoa, that’s a mouthful). ...

September 21, 2018 · 9 min · 1725 words · Scott Brown

Skills I Offer Companies

Recently, I was speaking with a company about opportunities they have. It’s a regular, casual affair that I do every so often. It keeps me grounded about what the job market is like, and allows me to see if there are other opportunities out there (because if you never look, opportunities never exist). At the end of the day, I like to help people solve problems because it makes me feel valued. ...

May 28, 2018 · 5 min · 1030 words · Scott Brown

Writing Drought is Over

My writing in 2017 and 2018 has been quite sparse, for good reason. Thankfully, this has ended and a raft of articles will be published soon. There were two reasons for the drought, one is personal which I won’t talk about and the other which is technical. The technical impediment was of my own making. This website is built with Middleman and rendered into static HTML files, then uploaded to CloudFront. I like the simplicity of it all, and writing in Ruby still makes me happy. It’s also fast, secure and reliable. ...

May 27, 2018 · 2 min · 418 words · Scott Brown

Enabling an AWS IAM MFA via CLI

NB: Linebreaks (\) have been added to the CLI commands for readability. I am in the process of setting up an AWS account for my family and part of that initial setup is to create users and roles for family members. Everyone receives readonly privileges and has to assume an IAM to gain elevated privileges. The people who are allowed to assume these elevated privileges must have a valid MFA session. ...

May 26, 2018 · 2 min · 320 words · Scott Brown