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competition-kerberos-delegation

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Internal downstream skill for ctf-sandbox-orchestrator. CTF-sandbox workflow for Kerberos delegation, SPN trust edges, S4U abuse, RBCD, constrained or unconstrained delegation, and service-ticket acceptance. Use when the user asks about constrained delegation, unconstrained delegation, RBCD, S4U, SPNs, ticket acceptance, or how a Kerberos trust edge turns into effective privilege under sandbox assumptions. Use only after `$ctf-sandbox-orchestrator` has already established sandbox assumptions and routed here.

CTF-Sandbox-Orchestrator/competition-kerberos-delegation/SKILL.md

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Last checked
Nov 9, 2026

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Sep 22, 2026
License
MIT

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# Competition Kerberos Delegation

Use this skill only as a downstream specialization after `$ctf-sandbox-orchestrator` is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to `$ctf-sandbox-orchestrator` first.

Use this skill when the hard part is not "is there Kerberos here," but which delegation edge exists, which ticket is being minted, and which service really accepts it.

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## Quick Start

1. Write the trust chain first: principal -> delegation edge -> ticket type -> target SPN -> accepting service -> resulting privilege.
2. Separate ticket possession from accepted privilege.
3. Keep SPNs, delegation mode, PAC/group data, encryption type, and service acceptance in one compact evidence block.
4. Reproduce one minimal delegation chain before broadening into variants.
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