CSAW. Red Team competition. “Babyrev”
Publicado enCTF

CSAW. Red Team competition. “Babyrev”

Babyrev is reversing challenge on CSAW "Red team competition" where have to pass 99 rounds of input 4-digits code based on some check function.  Main graph on IDA:  Disassembly of check(): Dump of assembler code for function check: 0x0000000000400893 <+0>:…
Cybercamp 2018 quals: “Oh my G0d!”
Publicado enCTF

Cybercamp 2018 quals: “Oh my G0d!”

Intro As a frequently player on cybergames and ctf's this year wanted play on prequal of Cybercamp CTF 2018 organized by INCIBE. This allows me to take a snapshot of the maturity and quality of both platforms and challenges, apart from…
Cybercamp 2018 quals: “Unnecessary redundancy”
Publicado enCTF

Cybercamp 2018 quals: “Unnecessary redundancy”

Intro

As a frequently player on cybergames and ctf’s this year wanted play on prequal of Cybercamp CTF 2018 organized by INCIBE. This allows me to take a snapshot of the maturity and quality of both platforms and challenges, apart from having a good time solving some problems (not always played as tunelko :))

Efiens CTF – mediumRE
Publicado enCTF

Efiens CTF – mediumRE

Hi folks. This post is about a Efiens challenge, easy-medium RE that my colleague Cothan publish on twitter as a part of a set of them included on Efiens CTF. As described on his tweet, is an easy ctf that try…