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yaklang/linux-privilege-escalation

Linux 권한 상승 플레이북입니다. 낮은 권한의 쉘 액세스 권한이 있고 SUID/SGID 바이너리, 기능, 크론 악용, 커널 익스플로잇, 설정 오류 또는 자격 증명 수집을 통해 루트로 권한을 상승해야 할 때 사용합니다.

linux-privilege-escalation란 무엇인가요?

이 스킬은 Linux 시스템에서 낮은 권한의 쉘 액세스 권한을 가진 상황에서 루트 권한을 획득하기 위한 체계적인 플레이북을 제공합니다. SUID/SGID 바이너리, Linux 기능(capabilities), 크론 작업 악용, 커널 취약점, 잘못된 파일 권한 및 설정, 자격 증명 수집 등 다양한 권한 상승 경로를 다룹니다. 각 기술에 대해 탐지 방법, 공격 절차, 실패 시 대체 경로를 포함한 단계별 가이드를 제공하며, 실제 침투 테스트 및 모의 해킹 환경에서 활용할 수 있습니다. 이 스킬은 주로 CLI 기반 도구와 함께 사용되며, yaklang과 같은 스크립트 언어로 작성된 권한 상승 스크립트와 연계하여 자동화된 권한 상승 작업을 지원합니다.

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문서

linux-privilege-escalation은(는) 무엇을 하나요?

Linux 권한 상승 플레이북입니다. 낮은 권한의 쉘 액세스 권한이 있고 SUID/SGID 바이너리, 기능, 크론 악용, 커널 익스플로잇, 설정 오류 또는 자격 증명 수집을 통해 루트로 권한을 상승해야 할 때 사용합니다.

사용 방법

  1. 초기 열거

    • whoami, id, uname -a를 실행하여 현재 사용자 및 시스템 정보를 확인합니다.
    • sudo -l를 실행하여 sudo 권한을 확인합니다.

  2. SUID/SGID 바이너리 찾기

    find / -perm -4000 -type f 2>/dev/null
find / -perm -2000 -type f 2>/dev/null

  3. 크론 작업 확인

    ls -la /etc/cron*
cat /etc/crontab

  4. 커널 익스플로잇 확인

    • /etc/issue, /etc/*release 파일에서 배포판 정보를 확인합니다.
    • 취약한 커널 버전에 대한 공개 익스플로잇을 검색합니다.

  5. 자격 증명 수집

    grep -r "password" /etc/ 2>/dev/null
cat /etc/shadow 2>/dev/null

참고: 권한 상승 시도는 반드시 합법적인 환경에서만 수행하세요. 무단 접근은 법적 처벌을 받을 수 있습니다.

추가 자료

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

yaklang/401-403-bypass-techniques

401/403 bypass playbook. Use when encountering access-denied responses on admin panels, API endpoints, or restricted paths. Covers path manipulation, HTTP method tampering, header injection, protocol downgrade, and automated bypass tools.

yaklang/active-directory-acl-abuse

Active Directory ACL abuse playbook. Use when exploiting misconfigured AD permissions including GenericAll, WriteDACL, DCSync rights, shadow credentials, LAPS reading, GPO abuse, and BloodHound-guided attack paths.

yaklang/active-directory-certificate-services

AD Certificate Services attack playbook. Use when targeting misconfigured AD CS for privilege escalation via ESC1-ESC13 template abuse, NTLM relay to enrollment, CA officer abuse, and certificate-based persistence.

yaklang/active-directory-kerberos-attacks

Kerberos attack playbook for Active Directory. Use when targeting AD authentication via AS-REP roasting, Kerberoasting, golden/silver/diamond tickets, delegation abuse, or pass-the-ticket attacks.

yaklang/ai-ml-security

AI/ML security playbook. Use when assessing model supply chain attacks (pickle RCE, poisoned weights), adversarial examples, model poisoning, model stealing, data privacy attacks (membership inference, model inversion), and autonomous agent security risks.

yaklang/android-pentesting-tricks

Android pentesting playbook. Use when testing Android applications for SSL pinning bypass, exported component abuse, WebView vulnerabilities, intent redirection, root detection bypass, tapjacking, and backup extraction during authorized mobile security assessments.

yaklang/anti-debugging-techniques

Anti-debugging detection and bypass playbook. Use when reversing protected binaries that detect debuggers via ptrace, PEB flags, timing checks, or signal/exception handlers on Linux and Windows.

yaklang/api-auth-and-jwt-abuse

API authentication and JWT abuse playbook. Use when testing bearer tokens, API keys, claim trust, header spoofing, rate limits, and API auth boundary weaknesses.

yaklang/api-authorization-and-bola

API authorization and BOLA testing playbook. Use when APIs expose object identifiers, nested resources, hidden writable fields, or weak function-level authorization.

yaklang/api-recon-and-docs

API reconnaissance and documentation review playbook. Use when discovering endpoints, schemas, versions, OpenAPI specs, hidden docs, and surface area for API testing.

yaklang/api-sec

Entry P1 category router for API security. Use when choosing between API recon, authorization, token abuse, and hidden-parameter workflows before any deeper API topic skill.

yaklang/arbitrary-write-to-rce

Arbitrary write to RCE playbook. Use when you have an arbitrary write primitive (from heap exploitation, format string, or OOB write) and need to convert it into code execution by targeting GOT, hooks, _IO_FILE vtable, exit_funcs, TLS_dtor_list, modprobe_path, .fini_array, or C++ vtables.

yaklang/authbypass-authentication-flaws

Authentication bypass testing playbook. Use when assessing login flows, password reset logic, account recovery, MFA bypass, token predictability, brute-force resistance, and session boundary flaws.

yaklang/auth-sec

Entry P1 category router for authentication and authorization. Use when testing login flows, sessions, object authorization, JWT, OAuth, CORS, CSRF, and enterprise SSO weaknesses before any deeper auth topic skill.

yaklang/binary-protection-bypass

Binary protection bypass playbook. Use when identifying and bypassing ASLR, PIE, NX/DEP, stack canary, RELRO, FORTIFY_SOURCE, CET, and MTE protections in ELF binaries to enable exploitation.

yaklang/browser-exploitation-v8

Browser and V8 exploitation playbook. Use when exploiting JavaScript engine vulnerabilities including JIT type confusion, incorrect bounds elimination, and V8 sandbox bypass to achieve renderer RCE and sandbox escape in Chrome/Chromium.

yaklang/business-logic-vuln

Entry P1 category router for business logic testing. Use when workflow abuse, race conditions, pricing flaws, or multi-step state attacks matter more than parser-level input injection.

yaklang/business-logic-vulnerabilities

Business logic vulnerability playbook. Use when reasoning about workflows, race conditions, price manipulation, coupon abuse, state machines, and multi-step authorization gaps.

yaklang/classical-cipher-analysis

Classical cipher analysis playbook. Use when encountering substitution ciphers, Vigenere, transposition, XOR, or encoded text in CTF challenges that requires frequency analysis, Kasiski examination, or known-plaintext cryptanalysis.

yaklang/clickjacking

Clickjacking playbook. Use when testing whether target pages can be framed, whether X-Frame-Options or CSP frame-ancestors are properly configured, and whether UI redress attacks can trigger sensitive actions.

관련 스킬

steipete/bluebubbles

Send and manage iMessages via BlueBubbles, including attachments, tapbacks, edits, replies, and groups.

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steipete/eightctl

Control Eight Sleep pods (status, temperature, alarms, schedules).

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steipete/blucli

BluOS CLI (blu) for discovery, playback, grouping, and volume.

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steipete/bear-notes

Create, search, and manage Bear notes via grizzly CLI.

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steipete/camsnap

Capture frames or clips from RTSP/ONVIF cameras.

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steipete/gifgrep

Search GIF providers with CLI/TUI, download results, and extract stills/sheets.

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