Margaret Hamilton
This is a writeup of the forensics challenge Margaret Hamilton from the CyberHeroines(https://cyberheroines.ctfd.io/) CTF
Level: Easy, Score: 100
Premise
[Margaret Elaine Hamilton](https://en.wikipedia.org/wiki/Margaret_Hamilton_(software_engineer) (née Heafield; born August 17, 1936) is an American computer scientist, systems engineer, and business owner. She was director of the Software Engineering Division of the MIT Instrumentation Laboratory, which developed on-board flight software for NASA’s Apollo program. She later founded two software companies—Higher Order Software in 1976 and Hamilton Technologies in 1986, both in Cambridge, Massachusetts. - [Wikipedia Entry](https://en.wikipedia.org/wiki/Margaret_Hamilton_(software_engineer)
Chal: Return the flag to NASAs first software engineer.
Author: Rusheel
Challenge files:
Apollo-Mystery.jpg
Observations
Upon viewing the challenge file, we see the following image:
Which when viewing doesn’t lead us anywhere at first glance, so we investigate further. Opening the file in a hex editor, we can see the following text:
Which is a link to https://www.youtube.com/shorts/y3I-mbNCC80, which is a youtube short about the namegiver of the challenge, Margaret Hamilton.
Scrolling to the bottom of the file, we get the following data:
Where PK indicates some form of zipped file, which coincidentally happens to be named margaret_flag.png so of course we’d like to access this file.
Solution
Using the tool binwalk by running the command binwalk -e Apollo-Mystery.jpg, we get a folder with the extracted files. (the -e flag is to extract any found contents of the file)
Within the folder of extracted files, we find a single zip file. Upon unzipping the file, we’re greeted with the following image:
Giving us our flag
chctf{i_wr1t3_code_by_h4nd}
Additionally, I manage to solve this challenge quick enough to achieve the following: 