hunting-adcs-certificate-template-abuse SKILL.md skillA

hunting-adcs-certificate-template-abuse from unboundcompute/security-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add unboundcompute/security-agent-skills/hunting-adcs-certificate-template-abuse@git:20260908.e3ae18a

Pins git:20260908.e3ae18a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
unboundcompute/security-agent-skills
Path
skills/hunting-adcs-certificate-template-abuse/SKILL.md
Versions recorded
1
Latest version
git:20260908.e3ae18a, committed Sep 8, 2026
Size
10,541 bytes
Repository stars
26
License
MIT

Hunt privilege escalation through Active Directory Certificate Services template and enrollment misconfiguration, where a low-privileged principal can enroll for a certificate that authenticates as a more privileged account, because a template lets the enrollee supply the subject, allows a client authentication use, has weak enrollment permissions, or the certificate authority accepts a requester-set identity. Use when a certificate authority issues templates for domain authentication and a…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Hunting ADCS certificate template abuse: when a standard user enrolls as a domain admin

A certificate authority in a Windows domain issues certificates that clients then use to authenticate, and
the identity a certificate carries is whatever the authority put in it. That is safe only when the authority
decides the identity from the authenticated enrollee, never from what the enrollee asked for. A template that
lets the requester supply the subject alternative name, combined with a use that permits client
authentication and enrollment rights granted to ordinary users, lets a standard user request a certificate
naming a domain administrator and then authenticate as that administrator. Other template settings weaken the
same boundary: a flag that carries the requester's identity into the issued certificate, or enrollment
permissions loose enough that any user obtains a template meant for privileged roles. The bug is a certificate
whose identity the low-privileged enrollee, not the authority, decided. You hunt these by reading each
template's enrollment rights, subject source, and permitted uses.

## When to use
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add unboundcompute/security-agent-skills/hunting-adcs-certificate-template-abuse@sha256:629dc6da066dff10

The line at the top of this page pins the label git:20260908.e3ae18a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_2yzfh66fafbgm7h4.svg)](https://markdownregistry.com/a/art_2yzfh66fafbgm7h4)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 8, 2026.

versioncommittedcommitsizeaudit
git:20260908.e3ae18a latest2026-09-08 e3ae18a 10,541 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10541 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

unboundcompute/security-agent-skills · 26 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2yzfh66fafbgm7h4
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/hunting-adcs-certificate-template-abuse
GET https://markdownregistry.com/api/v1/blob/629dc6da066dff10ca20140de64136ffa4a33abbda994bffc10211bcaf18cfc7

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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