Rules 2023

Figure 1: The challenge description.

The hint suggests that Ctrl – F will not work. This suggests that the flag is either not a string object, or be exposed to client-side interface but only available in the developer tools section of the browser.

The following is the webpage listing the rules for 2023’s PicoCTF Challenge.

Figure 2: The section of the website holding the flag.

As predicted, the flag is an image object sneakily added to a paragraph. Whilst this can’t be located with the search shortcut, it can be found using Ctrl – F in the HTML section within developer tools on Chromium.

The alt attribute is the text that displays when image fails to load and in this case that’s the flag.

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