TISC 2021 - 1865 Text Adventure (Creator’s Writeup)
This challenge was created for The InfoSecurity Challenge (TISC) 2021 organised by the Centre for Strategic Infocomm Technologies (CSIT). It was the 9th leve...
Stickied Posts
NUS Greyhats at CDDC 2015 and (Almost) Epic Mass Exploitation
The Cyber Defenders Discovery Camp 2015 is an introductory computer security workshop slash competition targeted at students at the JC and IHL levels. This i...
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PoliCTF 2012 - Bin-Pwn 400
Alien Technologies.
PoliCTF 2012 - Bin-Pwn 200
Play with this amazing calculator: calc.challenges.polictf.it:4000
PoliCTF 2012 - Bin-Pwn 100
Retrieve the key.
CSCAMP CTF 2012 - Exploit 400
We solved the post-patch version of this binary.
CSCAMP CTF 2012 - Exploit 200
This binary is vulnerable to a buffer overflow in the strncpy function called in the main function with user supplied input. It takes in two arguments, argum...
CSCAMP CTF 2012 - Exploit 100
This was more of a reversing puzzle than an exploitation one. The binary accepts a parameter as a password. It checks if the password is correct and cats the...
CSCAMP CTF 2012 - Web300
In this challenge, an image divided into blocks has its blocks scrambled not unlike a sliding block puzzle (http://en.wikipedia.org/wiki/Sliding_puzzle). The...