root@z2r:~/blog/tags#grep -r "ics" ./posts
<Tag: ics />
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CTF WRITEUPSICS/OT
HTB - Line Tap
Line Tap demonstrates how a forgotten Telnet maintenance interface on an ICS host can be turned into instant, unauthenticated root via CVE-2026-24061 by abusing the NEW-ENVIRON USER=-f root trick, making the challenge a clean lesson in legacy service risk, argument injection, and critical exposure in operational technology environments.