Category: Pwn Points: 10 Description:
Please pwn my plebian password program! Please connect to 220.127.116.11:1700 File here
A case of a buffer overflow attack though not obvious. Firstly, analysing the executable tells us that the buffer is
0x40 bytes long but the
read() reads in
0x80 bytes. Trying to overflow
0x80 bytes crashes the application due to the overwriting of address of a string resulting in it crashing due to being unable to read from a location.
Therefore, the flag is