0CTF/TCTF 2018


CTF Archive

Welcome to 0CTF/TCTF 2018

0CTF/TCTF 2018 is an annual online jeopardy-style CTF organized by 0ops and Tencent Keenlab.

CTF games often touch on many other aspects of information security: cryptography, stego, binary analysis, reverse engineering, mobile security and others. Good teams generally have strong skills and experience in all these issues.

Original Date: Sat, 31 March 2018, 01:00 UTC — Mon, 02 April 2018, 01:00 UTC
Original URL: https://ctf.0ops.sjtu.cn/
CTFtime Entry: 0CTF/TCTF 2018 Quals
Organization Team: 0ops and eee and Keenlab


Challenges

Bypass the protections!

Author: 0ops and eee and Keenlab

Hack the heap!

Author: 0ops and eee and Keenlab

Can get the flag from a black hole?

By the way, here is a so called return-to-csu method which you may want to know :P (though personally thought this should be well-known in 2018)

In memory of Stephen William Hawking (1942–2018).

Author: 0ops and eee and Keenlab

Subtracting Integrers to get the secret!

Author: 0ops and eee and Keenlab

A buggy file system…

Please run the challenge as: sudo /challenge/zerofs

Author: 0ops and eee and Keenlab

Storm is coming.

No more fastbins this time. Would you be the savior of the broken, the beaten and the damned?

Author: 0ops and eee and Keenlab


30-Day Scoreboard:

This scoreboard reflects solves for challenges in this module after the module launched in this dojo.

7-Day | 30-Day | All-Time

Rank Hacker Badges Score