hunting-firmware-secrets-and-debug-interfaces SKILL.md skillA
hunting-firmware-secrets-and-debug-interfaces from unboundcompute/security-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add unboundcompute/security-agent-skills/hunting-firmware-secrets-and-debug-interfaces@git:20260821.57dfaf1Pins git:20260821.57dfaf1 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-firmware-secrets-and-debug-interfaces/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260821.57dfaf1, committed Aug 21, 2026
- Size
- 10,301 bytes
- Repository stars
- 26
- License
- MIT
Hunt the attack surface a firmware image ships by mistake: a secret baked into the binary, a debug or diagnostic interface left enabled, a network service exposed by default, or a privileged command or update path reachable with no authentication. Covers a private key, symmetric key, or backdoor credential compiled into the image and used for authentication, a serial or on-chip debug console that drops to a privileged shell without auth, a management or plaintext service bound to every…
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 firmware secrets and debug interfaces: what the shipped image exposes for free A device ships whatever its firmware was built with, and firmware is built under deadline with debug aids, default services, and convenience credentials that were meant to be removed. The result is an attack surface that needs no exploit: a backdoor credential compiled into every unit, a serial console that drops to a root prompt, a management service listening on every interface, a command handler that flashes or executes before it checks who is asking. You hunt these by inventorying the externally reachable interfaces and the privileged actions, then asking, for each action, whether an authentication gate stands between it and the outside, and for each secret, whether it is a private key or credential the image should never have carried. The discipline is separating a real shipped exposure from a public key, a test file that never ships, or a debug aid the production build compiles out. ## When to use - You have firmware source, init or startup scripts, or default configuration for a device. …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/hunting-firmware-secrets-and-debug-interfaces@sha256:e44e26b2ce923f25The line at the top of this page pins the label git:20260821.57dfaf1, 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.
[](https://markdownregistry.com/a/art_rpif6m6ufc3zpoiw)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 21, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10301 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
unboundcompute/security-agent-skills · 26 stars · license MIT · pushed 2026-09-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rpif6m6ufc3zpoiw GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/hunting-firmware-secrets-and-debug-interfaces GET https://markdownregistry.com/api/v1/blob/e44e26b2ce923f252b228add3aad7b1a808d8896807988977bfac6ce67cb2169
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.