CTF - David Hamann

Splitting a binary into chunks on Linux, and re-combining them on Windows

1 minute read

Recently, I needed to transfer a binary over a very limited network connection allowing only small packets to be sent. I ended up splitting the binary into p...

Disabling NX in Linux via Kernel Parameter (using GRUB)

less than 1 minute read

To boot Linux without Data Execution Prevention, so that the OS doesn’t mark certain memory regions as non-executable, we…

Exploiting Python pickles

22 minute read

How unpickling untrusted data can lead to remote code execution.

Hack the Box Write-up #7: Bart

29 minute read

Write-up of “Bart” from Hack The Box

Hack the Box Write-up #6: Kotarak

51 minute read

Write-up of “Kotarak” from Hack The Box

Hack the Box Write-up #5: TartarSauce

41 minute read

Write-up of “TartarSauce” from Hack The Box

Hack the Box Write-up #4: Cronos

19 minute read

Write-up of “Cronos” from Hack The Box

Hack the Box Write-up #3: Netmon

22 minute read

Write-up of “Netmon” from Hack The Box

Hack the Box Write-up #2: Networked

29 minute read

Write-up of “Networked” from Hack The Box

Hack the Box Write-up #1: Jerry

11 minute read

Write-up of “Jerry” from Hack The Box