Bypassing regular expression checks with a line feed
Regular expressions are often used to check if a user input should be allowed for a specific action or lead to an error as it might be malicious.
CTF
Hack the Box Write-up #10: Buff
Write-up of “Buff” from Hack The Box
Hack the Box Write-up #9: Tabby
Write-up of “Tabby” from Hack The Box
Hack the Box Write-up #8: Fuse
Write-up of “Fuse” from Hack The Box
Splitting a binary into chunks on Linux, and re-combining them on Windows
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)
To boot Linux without Data Execution Prevention, so that the OS doesn’t mark certain memory regions as non-executable, we…
Exploiting Python pickles
How unpickling untrusted data can lead to remote code execution.
Hack the Box Write-up #7: Bart
Write-up of “Bart” from Hack The Box
Hack the Box Write-up #6: Kotarak
Write-up of “Kotarak” from Hack The Box
Hack the Box Write-up #5: TartarSauce
Write-up of “TartarSauce” from Hack The Box
Hack the Box Write-up #4: Cronos
Write-up of “Cronos” from Hack The Box
Hack the Box Write-up #3: Netmon
Write-up of “Netmon” from Hack The Box
Hack the Box Write-up #2: Networked
Write-up of “Networked” from Hack The Box
Hack the Box Write-up #1: Jerry
Write-up of “Jerry” from Hack The Box