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Your friend thought using a JPG was a great way to remember how to login to their private server. Can you find the flag?
Here we are given a .png to download. If we open the image, we see that it is a picture of a city skyline. We can try inspecting the metadata of the image to see if there is anything useful to be found using exiftool. ExifTool is a powerful and versatile command-line tool used for reading, writing, and editing metadata information in various types of files, primarily image and multimedia files. It can be installed like so:
sudo apt-get install libimage-exiftool-perl
and then inspect the file with the command:
exiftool PXL_20230922_231845140_2.jpg
Inspecting the output from the command we find some base64 encoding in the Description, and are able to decode that and retrieve the flag!
