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Run npx skillmds@latest add quality-max/iac-misconfig-scan in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

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Quality-Max (@quality-max) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Iac Misconfig Scan by quality-max — Agent Skill

Name: Iac Misconfig Scan
Author: Quality-Max

Iac Misconfig Scan

Scan infrastructure-as-code — Dockerfiles, Compose, Terraform, and GitHub Actions — for security misconfigurations like running as root, world-writable files, unpinned actions, and hardcoded secrets. Pure Claude Code, no signup.

Quality-Max Updated Sep 21, 2026

File contents

IaC Misconfig Scan

Catch insecure infrastructure-as-code before it ships. Read-only: it flags misconfigurations with file:line, it doesn't change anything.

Prerequisites

None. Pure Claude Code — reads IaC files directly, no MCP required.

Trigger

"Scan my Dockerfile / Terraform / workflows for misconfigs"
"Is my infrastructure-as-code secure?"
"IaC security review"

Workflow

Find IaC files: Dockerfile, docker-compose*.yml, *.tf, and .github/workflows/*.yml.
Review each against the checks below; report file:line, severity, and the fix.

Containers (Dockerfile / Compose)

Misconfiguration	Why it's risky
No `USER` / runs as root	Container compromise becomes host-level risk
World-writable file modes (e.g. `0777`)	Tampering and privilege issues
`:latest` or unpinned base image	Non-reproducible, unreviewed updates
Download-and-execute build step (remote script piped into a shell)	Unverified remote code in the image
Hardcoded secrets / credentials in `ENV` or `ARG`	Secret leakage in image layers
`privileged: true`, host network, or host path mounts (Compose)	Container escape / host exposure
`ADD` with a remote URL	Silent, unverified remote fetch (prefer `COPY`)

Terraform

Misconfiguration	Why it's risky
Public object storage / open ingress (`0.0.0.0/0`)	Data exposure / open attack surface
Hardcoded secrets in `.tf` or state	Credential leakage
Unencrypted storage / disabled logging	Data-at-rest and audit gaps

GitHub Actions

Misconfiguration	Why it's risky
Actions pinned to a tag, not a commit SHA	Supply-chain tampering
Broad `permissions` (or none set)	Excess token scope
Secrets echoed or used in `pull_request_target` with checkout of PR code	Secret exfiltration

Output a severity-ranked report:

## IaC Misconfig Scan

**1 high, 2 medium**

### HIGH
- Dockerfile:1 — base image uses ":latest"; pin to a digest for reproducible,
  reviewable builds.

### MEDIUM
- .github/workflows/ci.yml:7 — action pinned to a tag, not a commit SHA.
- docker-compose.yml:12 — service runs without a non-root USER.

Diagnostic only. Want IaC and SAST checks enforced on every PR? See QualityMax — qualitymax.io

---name: iac-misconfig-scandescription: Scan infrastructure-as-code — Dockerfiles, Compose, Terraform, and GitHub Actions — for security misconfigurations like running as root, world-writable files, unpinned actions, and hardcoded secrets. Pure Claude Code, no signup.---# IaC Misconfig ScanCatch insecure infrastructure-as-code before it ships. Read-only: it flags misconfigurations with `file:line`, it doesn't change anything.## Prerequisites- **None.** Pure Claude Code — reads IaC files directly, no MCP required.## Trigger- "Scan my Dockerfile / Terraform / workflows for misconfigs"- "Is my infrastructure-as-code secure?"- "IaC security review"## Workflow1. Find IaC files: `Dockerfile`, `docker-compose*.yml`, `*.tf`, and `.github/workflows/*.yml`.2. Review each against the checks below; report `file:line`, severity, and the fix.### Containers (Dockerfile / Compose)| Misconfiguration | Why it's risky ||------------------|----------------|| No `USER` / runs as root | Container compromise becomes host-level risk || World-writable file modes (e.g. `0777`) | Tampering and privilege issues || `:latest` or unpinned base image | Non-reproducible, unreviewed updates || Download-and-execute build step (remote script piped into a shell) | Unverified remote code in the image || Hardcoded secrets / credentials in `ENV` or `ARG` | Secret leakage in image layers || `privileged: true`, host network, or host path mounts (Compose) | Container escape / host exposure || `ADD` with a remote URL | Silent, unverified remote fetch (prefer `COPY`) |### Terraform| Misconfiguration | Why it's risky ||------------------|----------------|| Public object storage / open ingress (`0.0.0.0/0`) | Data exposure / open attack surface || Hardcoded secrets in `.tf` or state | Credential leakage || Unencrypted storage / disabled logging | Data-at-rest and audit gaps |### GitHub Actions| Misconfiguration | Why it's risky ||------------------|----------------|| Actions pinned to a tag, not a commit SHA | Supply-chain tampering || Broad `permissions` (or none set) | Excess token scope || Secrets echoed or used in `pull_request_target` with checkout of PR code | Secret exfiltration |3. Output a severity-ranked report:```## IaC Misconfig Scan**1 high, 2 medium**### HIGH- Dockerfile:1 — base image uses ":latest"; pin to a digest for reproducible, reviewable builds.### MEDIUM- .github/workflows/ci.yml:7 — action pinned to a tag, not a commit SHA.- docker-compose.yml:12 — service runs without a non-root USER.```Diagnostic only. **Want IaC and SAST checks enforced on every PR?** See QualityMax — qualitymax.io

Frequently asked questions