Neagu Ștefan-Claudel nstefan13

IERAE CTF 2024 - Intel CET Bypass Challenge

IERAE CTF had one of the coolest pwn challenges I've done in the while. It was written by hugeh0ge.

Here's the full source:

// gcc chal.c -fno-stack-protector -static -o chal
#include <stdio.h>
#include

Mojang Meta URLs

Piston Meta

Minecraft Java Edition Versions

Dungeons

dungeons/windows-x64

How to sync Obsidian with Git on Android

Limitations

If Termux is closed in the background by Android, the cron service will stop updating your repository and you must open Termux again. Refer to instructions for your device model to disable the killing of certain background applications.
This may negatively affect your devices battery life. I'm not entirely sure yet.

Setup

Install Termux – Apps on Google Play

Oh my zsh.

Install ZSH.

sudo apt install zsh-autosuggestions zsh-syntax-highlighting zsh

Install Oh my ZSH.

Windows SSH Server with Password-less Key Authentication and Default WSL2 Shell

Disclaimer: I am not a Windows Admin and I'm not even that good with PowerShell.

I wanted to be able to SSH into my Windows laptop directly into Linux. I also wanted to disable password authentication and only allow public key (RSA in my case) authentication.

Scott Hanselman wrote a blog post on how to make your default WSL2 distro your default shell for SSH. Windows OS Hub published an article on using public key

Dissecting Go Binaries
Go: Overview of the Compiler
Go compiler internals: adding a new statement to Go - Part 1
Go compiler internals: adding a new statement to Go - Part 2
Reversing GO binaries like a pro
How a Go Program Compiles down to Machine Code
Analyzing Golang Executables
Go Reverse Engineering Tool Kit
go-internals book
[Reconstructing Program Semantics from Go Binaries](http://home.in.tum.de/

Google dork cheatsheet

Search filters

Filter	Description	Example
allintext	Searches for occurrences of all the keywords given.	`allintext:"keyword"`
intext	Searches for the occurrences of keywords all at once or one at a time.	`intext:"keyword"`
inurl	Searches for a URL matching one of the keywords.	`inurl:"keyword"`
allinurl	Searches for a URL matching all the keywords in the query.	`allinurl:"keyword"`
intitle	Searches for occurrences of keywords in title all or one.	`intitle:"keyword"`

	# Apple Silicon laptops with firmware > 13.0 have a native charge threshold that does not required any userspace daemon running.
	# This native limit works even when the laptop is sleeping or powered off therefore it is preferable to the userspace daemon.
	# Nonetheless, it only works with fixed thresholds (80% as upper limit and 70% as lower limit).
	# CHWA key is the one used to enable/disable the native limit. 01 = 80% limit, 00 = no limit
	##
	typeset -g smc_command="/usr/local/bin/smc"
	typeset -g smc_charge_limit_key="CHWA"
	typeset -g smc_charge_limit_status_on="01"
	typeset -g smc_charge_limit_status_off="00"

	# This script automatically handles Syncthing conflicts on text files by applying a
	# git three-way merge between the previously synced version and each divergent version.

	# It depends on the watchdog package and git.

	# For automatic dependency installation when running with ´uv run --script deconflicter.py´:
	# /// script
	# requires-python = ">=3.10"
	# dependencies = [
	# "watchdog",

	csrutil disable
	sudo nvram boot-args="intcoproc_unrestricted=1 kext-dev-mode=1 amfi_allow_any_signature=1 amfi_unrestrict_task_for_pid=1 PE_i_can_has_debugger=1 cs_enforcement_disable=1 amfi_get_out_of_my_way=1 amfi=0xff cs_debug=1 ipc_control_port_options=0"
	sudo spctl --global-disable
	sudo defaults write /Library/Preferences/com.apple.security GKAutoRearm -bool NO
	sudo defaults write /Library/Preferences/com.apple.security.coderequirements Entitlements -string always
	sudo defaults write /Library/Preferences/com.apple.security.coderequirements AllowUnsafeDynamicLinking -bool YES
	sudo defaults write /Library/Preferences/com.apple.security.libraryvalidation.plist DisableLibraryValidation -bool YES
	defaults write com.apple.loginwindow DisableScreenLockImmediate -bool yes