So Meta

Problem

Find the flag in this picture. You can also find the file in /problems/so-meta_3_6dc950904c3ee41f324ae8d9f142f2b8.

• Image

Solution

1. The flag is hidden in the EXIF data of the image. Use exiftool and grep:

    $ exiftool pico_img.png | grep Artist
    Artist                          : picoCTF{s0_m3ta_43f253bb}

2. Katana can solve this challenge:

    Target completed in 0.21 seconds after 1847 unit cases
    grep(/data/targets/pico_img.png) ➜ 
    picoCTF{s0_m3ta_43f253bb} - (copied)

Flag

picoCTF{s0_m3ta_43f253bb}