Catalog/INFRASTRUCTURE/subdomain-watchtower
SCAN-ID: SUBDOMAIN-WATCHTOWERREVISION 2026.4
INFRASTRUCTURECVSS 6.4 (MEDIUM)

Subdomain Watchtower & Asset Discovery

Continuously map subdomains, staging endpoints, and legacy microservices that could present unknown attack surfaces.

Technical Scope & Verification Behavior

Discovers active subdomains via certificate transparency, DNS permutations, and passive search to inventory all internet-facing company assets.

Automated Inspection Checks (12)
Passive URL parameter fuzzing
Non-destructive boundary tests
Header & cookie flag assertions
Differential latency timing

Proof of Concept (PoC) Vector

Canonical test payload dispatched during security surface audits.

staging-api.example.com exposed with debug mode enabled

Probe Execution Simulator

Watch the probe engine test this signature in an isolated sandbox.

probe-runner (isolated ephemeral container)
Click 'Simulate Check' to watch the headless audit engine test this vector.

Remediation Patch

Protect Staging with Basic Auth / VPN

patch.diff (nginx)
--- a/handler.nginx (Vulnerable)
# Staging open to public web
+++ b/handler.nginx (Remediated)
auth_basic "Internal Staging Only";
auth_basic_user_file /etc/nginx/.htpasswd;

Place non-production staging environments behind zero-trust access tunnels or HTTP basic authentication.

AI Agent Prompt (Cursor · Claude · Copilot)

Copy and paste into your editor to refactor this issue automatically.

"Restrict public access to this staging subdomain using Cloudflare Zero Trust or HTTP basic authentication."

Run Isolated Check

Test your public domain specifically for Subdomain Watchtower & Asset Discovery.

100% passive • No server load

Specification Details

CVSS Score
6.4 / 10.0
Severity Level
MEDIUM
Category
INFRASTRUCTURE
Test Vectors
12 automated
Execution SLA
< 2.5 seconds
False Positive Defense
Strict assertion
Related Standards
#Discovery#Subdomains#Inventory#Assets

Run continuous monitoring for Subdomain Watchtower & Asset Discovery

Audit your site across all 41 vectors automatically on every deploy.

Back to Catalog