The Basics of Exploit Development 4: Unicode Overflows
Andy Bowden, Consultant, Coalfire Labs
If you have read the previous articles in this series, welcome back and keep reading. If not, I would encourage you to read those first before proceeding, as this article builds on concepts laid down in the previous installments. In this article, we will be covering a technique similar to the one in the second installment of this series but with the twist of the character encoding of the input being in Unicode. In order to demonstrate how to get around this impediment, we will be writing parts of the payload and doing some stack realignment manually. Read more
Successful DevSecOps begins with a cultural shift
Jason McAllister, Senior Consultant, Cloud Solutions Engineering, Coalfire
A successful DevSecOps approach fosters cohesive collaboration between Development, Security, and Operations teams for the cultivation of outcomes that improve security while also maintaining the goals of DevOps. Within DevSecOps, security is an additional foundational component in the process toward improving delivery outcomes. Furthermore, security is introduced as an integral and continuous component of the application lifecycle. With DevSecOps, the role of and emphasis on security occur much earlier in the lifecycle with a goal of producing better protected and perhaps more resilient applications.
Baselining PassGAN: Adventures in the rhubarb
Aaron Jones, Consultant, Penetration Testing
Cracking is a complex topic full of misunderstandings, confusing terminology and weird people. This blog post is front-loaded with some terminology, some explanations, and maybe some apologies.
Password cracking: This is fundamentally one thing: guessing. We’re not reversing, or talking to spirits or anything—we are picking a password candidate, running it through a hash algorithm and comparing the output to a target hash. In other words, math.
IoT Part 3: Fire!
Dan McInerney, Senior Security Consultant, Coalfire
When we left off in Part 2 of our blog series, we had just identified the max temperature variable and set it to a much higher number. Our celebrations quickly ended, however. Upon flashing the firmware with the new edited max temperature variable, we realized that the printer would get up to around 261o Celsius then suddenly stop heating and cool back down to room temperature. At least one more security feature must have been implemented to prevent thermal runaway. Tracking this down was significantly harder than tracking down a variable with a known value.
Coalfire statement on racial injustice
Tom McAndrew, Chief Executive Officer, Coalfire
In honor of Juneteenth, I wanted to reflect and share my thoughts. At Coalfire, we are committed to living our values: Respect, Excellence, Leadership, Integrity, Teamwork, and Enthusiasm. As a result, Coalfire stands against racism, violence, and hate. We stand with fairness, equity, and justice.