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Hackthebox: Grammar Walkthrough
Hackthebox Grammar is based on the MAC [Message Authentication Code] and how PHP handles the MAC strings also called as typejuggling. PHP tries to evaluate the MAC based on the starting strings, if it is valid numeric then it is used otherwise the value will be 0. https://www.php.net/manual/en/language.types.type-juggling.php https://www.owasp.org/images/6/6b/PHPMagicTricks-TypeJuggling.pdf Let’s get to the walkthrough: Once…