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VolgaCTF 2015 Quals -- my little pwnie

Category: Pwn Points: 250 Just another pwn task. Break in! nc pwnie.2015.volgactf.ru 7777 my_little_pwnie I solve the challenge after the end of the CTF, because I think this is a great ...

VolgaCTF 2015 Quals -- math problem

Category: PPC Points: 300 nc mathproblem.2015.volgactf.ru 8888 This problem remind me of HITCON CTF 2014 – 24 The server gave us 5 numbers v1, v2, v3, v4 & v5, and ask us to use +, -, *...

BackdoorCTF 2015 -- Binary + Misc

BackdoorCTF 2015 For me, this is a challenge for CTF beginners. Most of the challenges are easy to solve, although some of them require some “imagination”… In this writeup, I’ll post the solutions...

0CTF 2015 Quals -- geo-newbie

Talentyange gives lots of tedious apks and you know how bad he is now. Let’s try some interesting geography knowledge. nc 202.112.26.111 29995 / nc 202.112.28.118 29995 So basically we j...

0CTF 2015 Quals -- (Baby)PolyQuine

Different people see different me. But I am always myself. <202.112.26.114:12321> Make the output of your program exactly the same as your source code. All 5 correct required to get thi...

SCTF 2014 -- Code400

Code400 gave us a python script import json import hashlib import os import base64 from Crypto.Cipher import AES fp = open("secret.json", "r") secret = json.load(fp) fp.close() if type(secret["...

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: First, there’s a data structure ( let’s call it node ) which loo...

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 ...

ASIS CTF Finals 2014 -- TicTac

Description: Find flag in this file After extracting data in the compressed file, we found a .pcap file. Analyze the file with Wireshark, we found there’re lots of ICMP packets in it. After chec...

ASIS CTF Finals 2014 -- SATELLITE

Description: Connect here and find the flag: nc asis-ctf.ir 12435 After we connect to the server, it show us the following message: hi all, You must send a string for each level that would make...