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competition-linux-credential-pivot

Trace SSH keys, tokens, and other credentials in Linux CTF environments. Connect each recovered artifact to the service that accepts it, then document the resulting privileges or movement to another host.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

원문원문 설명 보기

Internal downstream skill for ctf-sandbox-orchestrator. CTF-sandbox workflow for Linux credential artifacts, service tokens, SSH material, cloud and container secrets, socket-level trust, and host-to-host pivot chains. Use when the user asks to trace Linux auth artifacts, accepted token or key replay, socket or service-account trust edges, sudo or capability abuse, or explain lateral movement across Linux challenge nodes. Use only after `$ctf-sandbox-orchestrator` has already established sandbox assumptions and routed here.

zhaoxuya520/reverse-skill
설치 방법 보기

이럴 때 유용합니다

  • Trace where recovered SSH keys and tokens are accepted
  • Document privilege gains through sockets or sudo
  • Explain movement between Linux challenge hosts
  • Build a minimal reproducible credential-to-access chain

포함된 파일(3)

  • SKILL.md2.8 KB
  • agents/openai.yaml373 B
  • references/linux-credential-pivot.md928 B

SKILL.md(원문)

설치하기 전에 에이전트에게 전달되는 지시 내용을 확인할 수 있습니다.

Competition Linux Credential Pivot

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 decisive edge is Linux credential material and where that material is accepted.

Reply in Simplified Chinese unless the user explicitly requests English.

Quick Start

  1. Separate credential storage from accepted privilege.
  2. Record user, process, namespace, socket, key file, and service trust boundary before conclusions.
  3. Keep artifact recovery, replay path, and resulting capability in one chain.
  4. Distinguish local escalation from lateral host pivot.
  5. Reproduce one minimal artifact-to-accepted-access path.

Workflow

1. Map Credential And Trust Artifacts

  • Record SSH keys, agent sockets, kubeconfigs, cloud tokens, service-account secrets, env vars, config files, and process memory clues.
  • Note sudoers rules, capabilities, setuid binaries, systemd unit context, and namespace boundaries.
  • Keep each artifact tied to owner, scope, and expected accepting service.

2. Prove Replay And Pivot

  • Show where key, token, socket, or secret is accepted: SSH, API, Unix socket, container runtime, or control-plane endpoint.
  • Record host target, protocol, principal, and resulting session or privilege.
  • Distinguish authentication success from useful capability gain.

3. Reduce To Decisive Linux Pivot Chain

  • Compress to: recovered artifact -> accepted replay path -> pivot host or privilege transition -> resulting capability.
  • State whether root cause is weak key handling, token leakage, socket trust, sudo or capability abuse, or namespace crossover.
  • If the chain pivots into kernel exploit boundaries, hand off to kernel container escape skill.

Read This Reference

  • Load references/linux-credential-pivot.md for artifact checklists, replay matrix, and evidence packaging.

What To Preserve

  • Artifact path, owner, scope, accepting service, and resulting principal
  • Exact pivot order with protocol and target host or namespace
  • One minimal replayable chain proving capability gain

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