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PresentationsCTFWriteups

Writeups

A collection of some writeups written by TJCSC

Darin Mao

redpwnCTF 2021 - gelcode-2 (pwn)

7/12/20212 minute read
Shellcode golfing
Darin Mao

redpwnCTF 2021 - devnull-as-a-service (pwn)

7/12/20217 minute read
ret2dlresolve on 64-bit binaries with huge pages
Darin Mao

picoMini by redpwn 2021 - Darin's Challenges

6/21/20218 minute read
Author writeups for picoMini by redpwn
Diana Lin

picoMini by redpwn 2021 - not-crypto (rev)

5/12/20211 minute read
Writeup for not-crypto (rev)
Diana Lin

picoMini by redpwn 2021 - notepad (web)

5/12/20213 minute read
Writeup for notepad (web)
Anna Hsu

picoMini by redpwn 2021 - advanced-potion-making (forensics)

5/11/20211 minute read
Fixing a corrupt PNG file
Anna Hsu

picoMini by redpwn 2021 - login (web)

5/11/20211 minute read
Client side login seems like a bad idea
Darin Mao

ångstromCTF 2021 - wallstreet (pwn)

4/15/20212 minute read
An unusual trick for format string exploitation
Darin Mao

ångstromCTF 2021 - Jar/Snake/Ekans

4/15/20218 minute read
Exploiting heavily restricted pickle deserialization
Darin Mao and Daniel Wang

picoCTF 2021 - BitHug (web)

4/5/20212 minute read
Exploiting SSRF in a complex web application
Darin Mao

picoCTF 2021 - Stonk Market (pwn)

3/31/20214 minute read
Tricky format string exploitation
Darin Mao

picoCTF 2021 - Bizz Fuzz (pwn)

3/30/20212 minute read
Automated analysis of a large binary
Darin Mao

justCTF 2020 - Pinata (pwn)

1/30/202110 minute read
Blind exploitation of nginx from justCTF 2020
Darin Mao, Saigautam Bonam, and Autin Mitra

TJCSC Winter Contest 2020

12/16/202014 minute read
Solutions to selected problems from the 2020 Winter Contest
Darin Mao and Stephen Huan

NACTF 2020

11/4/20202 minute read
Required writeups for winning teams.
Darin Mao

CSAW CTF 2020 Qualifier - blox (rev/pwn)

11/3/20206 minute read
This was a two-part series from the 2020 CSAW CTF Qualifier involving a small Tetris-like game.
Darin Mao

DamCTF 2020 - guess (pwn)

10/12/20201 minute read
This is my writeup for the challenge "guess" in the pwn category from OSUSEC's DamCTF 2020.
Darin Mao

CSAW RED 2020 Qualifier (crypto)

9/29/20202 minute read
Solutions for crypto challenges from the CSAW RED 2020 Qualification Round.
Darin Mao

CSAW RED 2020 Qualifier (misc)

9/29/20205 minute read
Solutions for misc challenges from the CSAW RED 2020 Qualification Round.
Darin Mao

CSAW RED 2020 Qualifier (web)

9/29/20201 minute read
Solutions for web challenges from the CSAW RED 2020 Qualification Round.
Darin Mao

CSAW RED 2020 Qualifier (rev)

9/29/20207 minute read
Solutions for rev challenges from the CSAW RED 2020 Qualification Round.
Darin Mao

CSAW RED 2020 Qualifier (pwn)

9/29/20206 minute read
Solutions for pwn challenges from the CSAW RED 2020 Qualification Round.
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