Eno Leriand | Ctf WriteUps

Ctf WriteUps

May 19, 2021
Cyberthon 2021 Finals - APCDB (pwn)
We've found a network service that seems to be posing as a fake directory of APOCALYPSE members…
December 26, 2017
confusion bug in ChakraCore
Introduction Chakrazy is a browser CTF challenge created by team PPP for the 2017 PlaidCTF event. It…
December 15, 2017
33C3 CTF feuerfuchs challenge
Introduction So I've been playing with the browser exploitation recently, by studying some browser…
July 16, 2017
MeePwn CTF 2017 -- Brainfuck 1 & 2
Category: Pwnable Both binaries are 64 bit ELF, No RELRO, No canary, PIE & NX enabled. Brainfuck1 Th…
July 16, 2017
MeePwn CTF 2017 - Old School
Category: Pwnable 64 bit ELF, Partial RELRO, NX enabled, No PIE, has canary. -------- BookStore ----…
July 16, 2017
MeePwn CTF 2017 - anotherarena
Category: Pwnable 64 bit ELF, Partial RELRO, canary & NX enabled, No PIE. The program is a simple…
May 02, 2017
DEFCON CTF 2017 Quals - badint
Category: Potent Pwnables 64 bit ELF, Partial RELRO, NX enabled, No canary & PIE. libc not provided.…
December 30, 2016
33C3 CTF 2016 - babyfengshui
Category: pwn Points: 150 32 bit ELF, with Partial RELRO, canary & NX enabled, No PIE program menu:…
December 29, 2016
33C3 CTF 2016 - ESPR
Category: pwn Points: 150 This time there's no binary or libc.so provided, only an image looks like…
December 12, 2016
SECCON CTF 2016 - checker
Category: Exploit Points: 300 64 bit ELF with Full RELRO, stack canary, NX enabled, No PIE. A quick…
December 12, 2016
SECCON CTF 2016 - chat
Category: Exploit Points: 500 64 bit ELF with Partial RELRO, stack canary & NX enabled, No PIE. The…
October 10, 2016
HITCON CTF 2016 Quals - Hackpad
Category: Crypto & Forensics Points: 150 I did not look at this challenge at first, until I found…
October 10, 2016
HITCON CTF 2016 Quals - ROP
Category: Reverse Points: 250 The challenge gave us a file call rop.iseq. By checking the file…
October 10, 2016
HITCON CTF 2016 Quals - Secret Holder
Category: pwn Points: 100 I did not finish the challenge during the contest, but was able to solve…
October 10, 2016
HITCON CTF 2016 Quals - Shelling Folder
Category: pwn Points: 200 64 bit ELF, with all the protection enabled. The program is a simple file…
October 10, 2016
HITCON CTF 2016 Quals - flame
Category: PPC ( more like Reverse ) Points: 150 We were given a 32 bit PowerPC ELF. Fortunately I've…
September 13, 2016
ASIS CTF Finals 2016 - car market
Category: pwn Points: 177 64 bit ELF, with Partial RELRO, Canary & NX enabled, no PIE. libc.so was…
September 12, 2016
MMA 2nd CTF 2016 - greeting
Category: pwn Points: 150 After a long period of time without playing any CTF, I finally finished my…
October 22, 2015
Hackdotlu CTF 2015 - secret library
Category: Reversing Points: 200 64 bit ELF This service is a some kind of weird library system…
September 22, 2015
CSAW CTF 2015 - FTP & FTP2
Category: Reversing (FTP) & Exploitable (FTP2) Points: 300 (FTP) & 300 (FTP2) 64 bit ELF. It's a…
September 21, 2015
CSAW CTF 2015 - Hacking Time
Category: Reversing Points: 200 This challenge gave us a NES ROM. After we launch it with NES…
May 23, 2015
ASIS CTF 2015 Quals - Saw this (1 & 2)
Category: pwn Points: 100 (Saw this-1), 400 (Saw this-2) Survive and get the flag! Note: This…
May 23, 2015
DEFCON CTF 2015 Quals - catwestern
Category: Coding Challenge Points: 1 meow catwestern_631d7907670909fc4df2defc13f2057c.quals…
May 23, 2015
ASIS CTF 2015 Quals - grids
Category: Programming Points: 300 In each stage send the maximun size of area that can be covered…
May 23, 2015
DEFCON CTF 2015 Quals - mathwhiz
Category: Baby's First Points: 1 mathwhiz_c951d46fed68687ad93a84e702800b7a.quals.shallweplayaga.me…
May 23, 2015
DEFCON CTF 2015 Quals - wibbly wobbly timey wimey
Category: Pwnable Points: 2 Wibbly Wobbly Timey Wimey Don't blink! wwtw…
May 22, 2015
VolgaCTF 2015 Quals - math problem
Category: PPC Points: 300 nc mathproblem.2015.volgactf.ru 8888 This problem remind me of HITCON…
May 22, 2015
VolgaCTF 2015 Quals - my little pwnie
Category: Pwn Points: 250 Just another pwn task. Break in! nc pwnie.2015.volgactf.ru 7777 my_little…
May 07, 2015
BackdoorCTF 2015 - Binary + Misc
BackdoorCTF 2015 For me, this is a challenge for CTF beginners. Most of the challenges are easy to…
May 05, 2015
0CTF 2015 Quals - (Baby)PolyQuine
Different people see different me. But I am always myself. <202.112.26.114:12321> Make the output…
May 05, 2015
0CTF 2015 Quals - geo newbie
Talentyange gives lots of tedious apks and you know how bad he is now. Let's try some interesting…
December 08, 2014
SCTF 2014 - Code400
Code400 gave us a python script import json import hashlib import os import base64 from Crypto…
December 08, 2014
SCTF 2014 - Pwn200
SCTF is a CTF contest hold by XCTF ( seems like a Chinese version's CTFtime.org ). Teaming up with my labmates, we have a lot of fun solving the challenges, and scored 2161 pts with the final rank 13/659.
December 08, 2014
SCTF 2014 - Pwn400
Similar with Pwn200, Pwn400 gave us a binary file, but no libc.so. Open it with IDA Pro and analyze it, we found some information:
October 15, 2014
ASIS CTF Finals 2014 - TicTac
Description: Find flag in this file After extracting data in the compressed file, we found a .pcap…
October 14, 2014
ASIS CTF Finals 2014 - How much exactly + Lottery
Both challenges are kind of easy, so I decide to put their writeups together. Description: 4046925:…
October 14, 2014
ASIS CTF Finals 2014 - SATELLITE
Description: Connect here and find the flag: nc asis-ctf.ir 12435 After we connect to the server, it…
September 25, 2014
CSAW CTF - Exploitation 200 pybabbies
CSAW CTF 2014 is the second CTF contest I've attended ( the first one was the HITCON CTF 2014 ) . Si…
September 25, 2014
CSAW CTF 2014 - Exploitation 400 saturn
First the challenge gave us a binary file (ELF for Intel-386). But we can't execute it, cause we don…