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HTB: Challenge - Armaxis

Armaxis chains an IDOR in the password-reset flow to seize the admin account, then abuses a markdown image parser that shells out to an unquoted curl for OS command injection — a single injected cat reads the flag, where the author’s intended route uses curl’s file:// LFI.

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HTB: Linux - Reset

Reset chains a password-reset oracle and SQLi-leaked admin hash into an authenticated dashboard, an LFI that is weaponised through Apache log poisoning for RCE as www-data, a misconfigured /etc/hosts.equiv r-services trust that pivots laterally to two separate users, and finally an lxd group membership that mounts the host filesystem for root.

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HTB: Linux - Trick

Trick is an Easy Linux machine built around enumeration. A misconfigured DNS zone transfer plus virtual-host fuzzing reveal hidden subdomains, an LFI on one of them leaks an SSH key, and a user in the security group abuses a writable fail2ban action directory to get root once a ban fires.