Similar with Pwn200, Pwn400 gave us a binary file, but no libc.so. Open it with IDA Pro and analyze it, we found some information:
SCTF is a CTF contest hold by XCTF ( seems like a Chinese version’s CTFtime.org ). Teaming up with my labmates, we have a lot of fun solving the challenges, ...
Description: Find flag in this file
Description: Connect here and find the flag: nc asis-ctf.ir 12435
Both challenges are kind of easy, so I decide to put their writeups together.