Tags: format-string rev
Rating:
# format
**Category:** Binary Exploitation
**Points:** 120
**Solves:** 374
**Description:**
Go to `/problems/format` on the shell server and tell me what is in `flag.txt`.
[File](format)
## Write-up
![screen_0_format](screen_0_format.png)
![screen_1_format](screen_1_format.png)
By trial and error, we found that we need enter %p 7 times.
![screen_2_format](screen_2_format.png)
![screen_3_format](screen_3_format.png)
Flag is: **easyctf{p3sky_f0rm4t_s7uff}**