Feb
26

CodeGate 2012 Quals Vuln500 Write-up

1.234.41.7:22 ID : yesMan PWD : ohyeah123 Download vulnerable binary. Vuln500 was a hardened format-string vuln with ASLR, NX-stack, no-DTORs, RO .dynamic

Feb
13

IFSF CTF #8 (X98) Write-up

we know it’s about some secret agents , but we need more than that 208.64.122.234 PORT 3000 X98 is a remote CTB task with a shell injection vuln.

Sep
21

Leet More 2010 Jailbreak writeup

Category: CTB A piece of code is currently up @ ctf.ifmo.ru:4004 BTW, here is what’s inside the jail: vos@ms7:~/private_data$ ls -la total 20K d——r-x 2 alice alice 4.0K Aug 21 00:23 . d——r-x 3 alice alice 4.0K Aug 21 00:29 .. ——-r– 1 alice alice 9.0K Aug 21 00:23 key Ok, we have this binary… Continue reading »

Sep
21

Leet More 2010 brainfffuuuuu writeup

Category: CTB This binary is running at ctf.ifmo.ru Are you able to get the key?! Let’s take a look at what the binary is doing (decompilation of its main function begin_the_fucking() will help us): 1. Prints out some prompt 2. Reads 30 bytes 3. Interprets them as Brainfuck code. and here is what the stack… Continue reading »