Hey all! My husband’s company recently did an internal (commercial) CTF, and as a CTF nerd I got suckered into helping him. I thought one of the challenges had a pretty interesting solution - at least, something I hadn’t done before - and I thought I’d do a little write-up! Because it’s a commercial CTF, I wrote my own vulnerability binary, which you can grab here. It’s much, much simpler, but has all the components I wanted. They also provided libc.so, but since I’m not actually ...
