Author: Marin Radu
The flag is split in variables and can be read from the strings.
strings
One of the first things you can do to analyze a binary is to run strings on it.
This will show you plaintext strings from the binary that might give you relevant information.
The following one-liner splits the flag into 5 parts:
strings -n3 ./vuln | grep -A4 CSCTF{ | tr -d "\n"| Command | Explanation |
|---|---|
strings -n3 |
lines with at least 3 characters |
grep -A4 |
read 4 lines after we match 'CSCTF{' |
tr -d "\n" |
remove newlines |
Flag:
CSCTF{couldn't_think_of_a_cool_flag_so_there_you_go}