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Kali Linux CTF Blueprints by Cameron Buchanan

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Flag placement and design

Flags are useful because they provide definite objectives for your testers. The difficulty with flags is that while your testers need to be able to identify them, you should also want to simulate a real penetration test or hack as closely as possible. By this logic, a flag should be easily identifiable but not in your face. This can be handled carefully in a number of different ways, as mentioned in the following list:

  • Location: You can place the file in a directory commonly associated with loot. I mean, sensitive files is a good way to go. This will teach your testers good habits while also not taxing their brain cells excessively. Examples are shown in the next section.
  • Filename: The name Flag.txt is self-explanatory, ...

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