Chris Christiansen
9fcb9c354a
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81 lines
3.3 KiB
Python
81 lines
3.3 KiB
Python
#!/usr/bin/env python
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#
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# tyr/tools/scan_tyr_surface.py - MCP Tool for security surface scanning
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#
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import os
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import json
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import subprocess
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from datetime import datetime
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from google.cloud import secretmanager
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def scan_tyr_surface(p: dict) -> dict:
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"""Scans GCP resources for compliance against key TYR security rules."""
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project_id = os.environ.get(
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"GOOGLE_CLOUD_PROJECT", "propane-will-491900-m5")
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report = {
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"scan_timestamp": datetime.utcnow().isoformat() + "Z",
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"rules_checked": [],
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"findings": []
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}
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# Rule Ω-SEC: Check Secret Manager rotation (< 30 days)
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try:
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report["rules_checked"].append("Ω-SEC")
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client = secretmanager.SecretManagerServiceClient()
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for secret in client.list_secrets(request={"parent": f"projects/{project_id}"}):
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secret_details = client.get_secret(request={"name": secret.name})
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rotation = secret_details.rotation
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if not (rotation and rotation.rotation_period and rotation.rotation_period.seconds <= 2592000):
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report["findings"].append({
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"rule": "Ω-SEC",
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"resource": secret_details.name,
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"message": "Secret does not have a rotation period of 30 days or less."
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})
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except Exception as e:
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report["findings"].append(
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{"rule": "Ω-SEC", "status": "ERROR", "message": str(e)})
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# Rule Ω-ID: Check SPIRE SVID TTLs (< 5 minutes)
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try:
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report["rules_checked"].append("Ω-ID")
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# This is a simplified check. A full implementation would parse all entries.
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cmd = ["./spire-1.15.3/bin/spire-server", "entry", "show"]
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result = subprocess.run(cmd, capture_output=True,
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text=True, check=True, timeout=10)
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if "X509-SVID TTL : default" in result.stdout or "3600" in result.stdout:
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report["findings"].append({
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"rule": "Ω-ID",
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"resource": "spire-server:default-ttl",
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"message": "Default SVID TTL is in use (1 hour). It should be <= 5 minutes."
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})
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except Exception as e:
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report["findings"].append(
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{"rule": "Ω-ID", "status": "ERROR", "message": str(e)})
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# Rule Ω-AUDIT: Check Log Sink
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try:
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report["rules_checked"].append("Ω-AUDIT")
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cmd = ["gcloud", "logging", "sinks", "describe",
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"tyr-audit-sink", "--format=json"]
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result = subprocess.run(cmd, capture_output=True,
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text=True, check=True, timeout=10)
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sink_info = json.loads(result.stdout)
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if not sink_info.get("destination", "").endswith("datasets/tyr_audit_logs"):
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report["findings"].append({
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"rule": "Ω-AUDIT",
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"resource": "tyr-audit-sink",
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"message": "Log sink destination is not tyr_audit_logs."
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})
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if 'cloudaudit.googleapis.com' not in sink_info.get("filter", ""):
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report["findings"].append({
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"rule": "Ω-AUDIT",
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"resource": "tyr-audit-sink",
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"message": "Log sink is not configured to capture Cloud Audit Logs."
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})
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except Exception as e:
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report["findings"].append(
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{"rule": "Ω-AUDIT", "status": "ERROR", "message": str(e)})
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return report
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