cloud-and-infra

name	cloud-and-infra
description	Cloud-native service fingerprints, Kubernetes/container exposure, CI/CD platform exposure, TLS deep audit, and favicon hash pivot for authorized infrastructure recon.
version	1.1.0
triggers	["cloud native fingerprint","Lambda function URL","Cloud Run","kubernetes exposure","kubelet","etcd","CI CD exposure","Jenkins recon","GitLab self-hosted","GitHub Actions secrets","TLS deep audit","JA3 JA4","container registry","Docker API","Argo CD","favicon hash"]

Cloud & Infrastructure OSINT

Sub-skill of offensive-osint. Load osint-methodology for pipeline and triage context. Authorized targets only.

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BEHAVIORAL CONTRACT

When triggered: Cloud-native service fingerprinting, Kubernetes/container exposure, CI/CD platform exposure, TLS deep audit, or container registry leak hunting is needed.

Execute:

1. For each discovered subdomain/IP, match against cloud-native URL patterns (§1). Classify provider and service type.
2. Check public-vs-auth-required on each cloud function endpoint (HEAD/GET).
3. For K8s/container exposure: probe ports from §2 table (Docker 2375/2376, kubelet 10250, etcd 2379, K8s API 6443/8443). Anonymous access = CRITICAL.
4. Check CI/CD platforms (§3) for unauthenticated access.
5. Run TLS deep audit (§4) on every HTTPS endpoint in scope.
6. Check public container registries (§2) for target-owned images.
7. For each finding, emit per osint-methodology §3 schema.

Output: Infrastructure findings with provider, service type, auth posture, severity. All per osint-methodology §3 schema.

Severity rules: Inline per section tables. Docker API unencrypted = CRITICAL. Open kubelet = CRITICAL. Open etcd = CRITICAL. K8s API anonymous = HIGH. TLS 1.0/1.1 = MEDIUM.

Gating rules: Active port probing is HIGH detectability — confirm authorization. Container image pulls generate logs — note detectability.

Chain to: Feed discovered cloud endpoints to web-surface for HTTP checks. Feed K8s findings to analysis-and-reporting for attack-path hints. For ASN/BGP lookups, use recon-asset-discovery.

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1. Cloud-Native Service Fingerprints

Provider	URL pattern	Notes
AWS Lambda Function URL	*.lambda-url.<region>.on.aws	Direct invocation; check IAM auth posture
AWS App Runner	*.<region>.awsapprunner.com	Managed container
AWS API Gateway	*.execute-api.<region>.amazonaws.com	REST/HTTP/WebSocket; check authorizer
AWS CloudFront	d{14}\.cloudfront\.net	Distribution; find origin via docs/methods/cdn-bypass-techniques.md
AWS ALB / ELB	*.elb.<region>.amazonaws.com	Behind = EC2 / ECS
AWS Amplify	*.amplifyapp.com	Static + Lambda backend
Google Cloud Run	*.run.app (and *.<region>.run.app)	Check public-vs-IAM auth
Google Cloud Functions	*.cloudfunctions.net	Serverless
Google App Engine	*.appspot.com	Older serverless
Azure Functions	*.azurewebsites.net	Function App; also App Service
Azure Container Apps	*.azurecontainerapps.io	Containers
Vercel	*.vercel.app, *.now.sh (legacy)	Frontend + serverless
Netlify	*.netlify.app, *.netlify.com	Frontend + functions
Cloudflare Workers	*.workers.dev	Edge functions
Cloudflare Pages	*.pages.dev	Static + functions
Heroku	*.herokuapp.com	Dynos
Render	*.onrender.com	Container/static
Railway	*.railway.app	App platform
DigitalOcean App Platform	*.ondigitalocean.app	Static + container

Per-platform checks:

• Confirm public vs auth-required (HEAD / GET).
• Check CORS posture.
• Lambda Function URLs / Cloud Run / Cloud Functions: anonymous invocation = HIGH finding.
• Static + functions hybrids (Vercel/Netlify): function paths usually /api/*; enumerate via JS extraction.

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2. Container & Kubernetes Exposure

Target	Port	Probe	Severity
Docker API (unencrypted)	2375	curl -sk -m 5 http://${IP}:2375/v1.40/info	CRITICAL
Docker API (TLS)	2376	curl -sk -m 5 https://${IP}:2376/v1.40/info	HIGH
Kubernetes API server	6443 / 8443	curl -sk -m 5 https://${IP}:6443/api	HIGH if anonymous non-403
kubelet	10250 (HTTPS)	curl -sk -m 5 https://${IP}:10250/pods	CRITICAL (no auth = pod exec)
etcd	2379 (client)	curl -sk -m 5 https://${IP}:2379/v2/keys/	CRITICAL (cluster state + secrets)
Kubernetes Dashboard	8001 / 9090 / 30000+	curl -sk -m 5 http://${IP}:8001/api/v1/namespaces/kube-system/services/kubernetes-dashboard	HIGH
kube-controller-manager	10257	curl https://${IP}:10257/metrics	MEDIUM
kube-scheduler	10259	curl https://${IP}:10259/metrics	MEDIUM
Helm Tiller (Helm 2, deprecated but found)	44134	helm --host ${IP}:44134 list	HIGH

Container registries to check for leaks:

Registry	Search pattern
Docker Hub	https://hub.docker.com/search?q=<target-keyword>&type=image
Quay (Red Hat)	https://quay.io/search?q=<target-keyword>
GitHub Container Registry	https://api.github.com/orgs/<org>/packages?package_type=container
Amazon ECR Public	https://gallery.ecr.aws/?searchTerm=<keyword>
Google Container Registry (GCR)	https://gcr.io/v2/<project-id>/tags/list (also try us.gcr.io, eu.gcr.io, asia.gcr.io)
Azure Container Registry (ACR)	https://<registry>.azurecr.io/v2/_catalog (anonymous pull if enabled)

Per-image scan workflow:

docker pull <registry>/<image>:<tag>
docker save <image> -o /tmp/img.tar
# Extract layers; run secret catalog over files
docker history <image>   # inspect build args + COPY of secrets

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3. CI/CD Platform Exposure

Platform	Common exposure	Probe
Jenkins	/script (Groovy console = RCE if no auth), /asynchPeople/	curl -sk -m 10 "${T}/script"
GitLab self-hosted	Version in HTML; /api/v4/version	curl -sk -m 10 "${T}/api/v4/version"
TeamCity	/login.html; CVE-2024-27198 (KEV)	curl -sk -m 10 "${T}/login.html" | grep -i TeamCity
Argo CD	/api/version; anonymous-auth posture	curl -sk -m 10 "${T}/api/version"
Bamboo	/rest/api/latest/info	curl -sk -m 10 "${T}/rest/api/latest/info"
Drone CI	/api/info	curl -sk -m 10 "${T}/api/info"
Spinnaker	/gate/info, /applications	curl -sk -m 10 "${T}/gate/info"
CircleCI	/api/v2/me (token leak → project enum), public build logs	curl -sk -m 10 "${T}/api/v2/me" -H "Circle-Token: ${TOKEN}"

GitHub Actions secret-leak anti-patterns:

# Anti-pattern: secret echoed to log
run: echo "${{ secrets.MY_API_KEY }}"

# Anti-pattern: pull_request_target with fork code checkout (CVE class)
on: pull_request_target
jobs:
  test:
    steps:
      - uses: actions/checkout@v3
        with:
          ref: ${{ github.event.pull_request.head.sha }}  # checks out fork code with secrets in env

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4. TLS Deep Audit

Beyond cert SAN + JARM — inspect cipher suites, protocols, and config quality.

# sslyze (most thorough — install: see docs/reference/tooling-install.md)
sslyze --regular target.example:443
sslyze --json_out=tls.json target.example:443

# testssl.sh (thorough + readable)
docker run --rm -ti drwetter/testssl.sh https://target.example
testssl.sh --jsonfile-pretty=tls-report.json target.example:443

# nmap (lighter)
nmap --script ssl-enum-ciphers,ssl-cert -p 443 target.example

Issues to check:

Issue	Severity
TLS 1.0 / 1.1 supported	MEDIUM (PCI-DSS forbids TLS 1.0)
SSL 3.0 / 2.0 supported	HIGH
Weak ciphers (RC4, 3DES, CBC modes)	MEDIUM
Anonymous DH	HIGH
Weak key size (<2048 RSA, <256 ECDSA)	HIGH
Heartbleed (CVE-2014-0160)	CRITICAL
ROBOT (CVE-2017-13099)	HIGH
Ticketbleed (CVE-2016-9244)	HIGH (F5-specific)
HSTS not present on /login	HIGH
Self-signed cert on production	MEDIUM
Expired cert	MEDIUM

JA3/JA4 reference databases:

• ja3er.com — JA3 → client-software mapping.
• Shodan ssl.jarm:<hash> to find shared infrastructure / origin candidates.

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5. Favicon mmh3 Hash Pivot

python3 -c "
import urllib.request, codecs, mmh3
data = urllib.request.urlopen('https://target.example/favicon.ico').read()
print(mmh3.hash(codecs.encode(data, 'base64')))"
shodan search "http.favicon.hash:<hash>" --fields ip_str,port,org

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Note: For ASN/BGP and internet measurement, see recon-asset-discovery. For reverse DNS sweep and IPv6 enumeration scripts, see docs/methods/active-sweep-scripts.md.