Posts
Scavenger Security
Cancel

NorzhCTF 2021 - S1de Ch4nnel

NOTE: The following is a writeup for the solution we developed for this challenge after the end of the competition. Our thanks go to 0xShikoRuma for explaining the intended solution on Discord. S1...

OMH 2021 CTF - GRUB [Reversing]

GRUB is a reversing challenge that got 20 solves. We are given a bootable GRUB file called grub.iso: $ file grub.iso grub.iso: DOS/MBR boot sector; GRand Unified Bootloader, stage1 version 0x79, b...

WPICTF 2021 - Strong ARM [Pwn]

In this challenge we have an ELF binary that has been compiled for the aarch64 architecture. We do not need to reverse engineer the file because the source is already provided. First of all, we ex...

RITSEC 2021 - Baby Graph [Pwn]

In this challenge we are given an ELF64 binary. The challenge consists of getting remote code execution and reading the flag. We need to determine whether a given graph is Eulerian to get a prize (...

UMassCTF 2021 - Chains [Reversing]

Chains is a reversing challenge that got 20 solves. We are given a stripped aarch64 (ARM 64 bit) ELF binary called chains: $ file chains chains: ELF 64-bit LSB pie executable, ARM aarch64, versio...

Securinets CTF Quals 2021 - RUN! [Reversing]

RUN! is a reversing challenge that got 15 solves. We are a provided a Windows PE binary called wamup.exe and the following description: keygenme now! nc bin.q21.ctfsecurinets.com 2324 If we...

Codefest 2020 - Anime Is Love [Forensics]

Anime is love was one of the forensics challenges in Codefest CTF 2020. The challenge description reads: You know what to do. Author:pseudo_bot#7514 file: anime.jpg The file we are given looks ...

Codefest 2020 - telephone [Forensics]

telephone was one of the forensics challenges in codefest ctf 2021. The challenge has some forensics elements but is mostly stego. We get a PNG image named telephone.png: From here we run the ...

NahamCon 2021 - ddr [Scripting]

For this challenge we are given the following image and asked to find a flag with the format flag{something_here}: Since is a scripting challenge, let’s start parsing the image. import cv2 import...

Codefest 2020 - tooeasy [Reversing]

tooeasy is a reversing challenge with 17 solves. The description reads: I mean lets get to basics, I have my tried to get in how real malware authors would hide there stuff but still this chall ...