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Group: CybICS CTF - Add Reverse Engineering CTF Category#194

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Group: CybICS CTF - Add Reverse Engineering CTF Category#194
pulcinella-x wants to merge 1 commit into
mniedermaier:mainfrom
pulcinella-x:add/reverse-training

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@pulcinella-x pulcinella-x commented May 8, 2026

Adds two reverse engineering challenges to the CybICS CTF platform (reverse_engineering category in ctf_config.json).

  • plc_auth (150 pts, Easy): recover a XOR-obfuscated password from a PLC maintenance binary
  • hmi_validator (200 pts, Medium): invert a rolling keyed byte transform to derive a valid auth code

Binaries are statically compiled ELF x86-64 and served as static files; no new container needed. Makefiles included for rebuilding from source.

Introduce two RE challenges integrated into the existing CTF
system via the ctf_config.json. Binaries are served as static files;
no additional container needed. Binaries can also be compiled as part
of a automated process, as Makefile exists.

Team: CybICS CTF
@pulcinella-x pulcinella-x force-pushed the add/reverse-training branch from ac36379 to f09c04c Compare May 10, 2026 09:15
@pulcinella-x pulcinella-x changed the title [WIP] [DONT MERGE] Add/reverse training Add Reverse Engineering CTF Category May 10, 2026
@pulcinella-x pulcinella-x changed the title Add Reverse Engineering CTF Category Group: CybICS - Add Reverse Engineering CTF Category May 10, 2026
@pulcinella-x pulcinella-x changed the title Group: CybICS - Add Reverse Engineering CTF Category Group: CybICS CTF - Add Reverse Engineering CTF Category May 10, 2026
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