diff --git a/integrations/feed-nvd/manifest.yaml b/integrations/feed-nvd/manifest.yaml new file mode 100644 index 0000000..51c3de8 --- /dev/null +++ b/integrations/feed-nvd/manifest.yaml @@ -0,0 +1,45 @@ +id: feed_nvd +name: NVD CVE Feed +version: 1.0.0 +description: "NIST National Vulnerability Database (NVD) feed connector — pull recently-published CVEs from the NVD 2.0 API and emit normalized IOCs (CVE + type, with description/CVSS/status) for import into the Threat Indicator Manager. Works without a key; an optional free NVD API key raises the rate limit. Stdlib-only, no extra Python dependencies." +changelog: "1.0.0 — Initial release: fetch recent CVEs from the NVD 2.0 API." +category: feed + +# The NVD 2.0 API is free. An optional API key (sent as the apiKey header) +# raises the request rate limit. +config_schema: + properties: + api_key: + type: string + description: "Optional NVD API key (free — raises the rate limit)" + x-soar-sensitive: true + days: + type: number + description: "Look-back window in days for recently-published CVEs (default 7, max 120)" + default: 7 + insecure: + type: boolean + description: "Trust any TLS certificate (not secure)" + default: false + required: [] + +commands: + - id: fetch_indicators + name: feed-nvd-fetch-indicators + description: "Fetch recently-published CVEs from NVD and return normalized indicators." + risk: read + inputs_schema: + properties: + days: { type: number, description: "Look-back window in days (overrides config, max 120)" } + max_indicators: { type: number, description: "Max indicators to return (0 = API page size 2000, default 0)" } + required: [] + outputs_schema: { properties: {} } + + - id: test_connection + name: feed-nvd-test-connection + description: "Verify the NVD API is reachable (used by the Test button)." + risk: read + inputs_schema: + properties: {} + required: [] + outputs_schema: { properties: {} } diff --git a/integrations/feed-nvd/scripts/fetch_indicators.py b/integrations/feed-nvd/scripts/fetch_indicators.py new file mode 100644 index 0000000..61432e6 --- /dev/null +++ b/integrations/feed-nvd/scripts/fetch_indicators.py @@ -0,0 +1,110 @@ +import json, os, sys, ssl, datetime, urllib.parse, urllib.request, urllib.error + +BASE = "https://services.nvd.nist.gov/rest/json/cves/2.0" + + +def _cfg(): + return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}")) + + +def _inputs(): + return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}")) + + +def _ctx(cfg): + if cfg.get("insecure"): + c = ssl.create_default_context() + c.check_hostname = False + c.verify_mode = ssl.CERT_NONE + return c + return None + + +def _headers(cfg): + h = {"User-Agent": "Riposte-SOAR", "Accept": "application/json"} + k = cfg.get("api_key") + if k: + h["apiKey"] = str(k) + return h + + +def _get(url, cfg): + req = urllib.request.Request(url, headers=_headers(cfg)) + with urllib.request.urlopen(req, timeout=120, context=_ctx(cfg)) as r: + return r.read() + + +def _run(fn): + try: + print(json.dumps(fn(_cfg(), _inputs()))) + except urllib.error.HTTPError as e: + print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")})) + sys.exit(1) + except Exception as e: + print(json.dumps({"error": str(e)})) + sys.exit(1) + + +def _cvss(metrics): + for key in ("cvssMetricV31", "cvssMetricV30", "cvssMetricV2"): + arr = metrics.get(key) + if arr and isinstance(arr, list) and isinstance(arr[0], dict): + d = arr[0].get("cvssData", {}) + return d.get("baseScore"), d.get("baseSeverity") or arr[0].get("baseSeverity") + return None, None + + +def main(cfg, inputs): + days = int(inputs.get("days") or cfg.get("days") or 7) + days = max(1, min(days, 120)) + + end = datetime.datetime.now(datetime.timezone.utc) + start = end - datetime.timedelta(days=days) + fmt = "%Y-%m-%dT%H:%M:%S.000" + + per = int(inputs.get("max_indicators") or 0) or 2000 + per = max(1, min(per, 2000)) + + params = { + "pubStartDate": start.strftime(fmt), + "pubEndDate": end.strftime(fmt), + "resultsPerPage": per, + } + url = BASE + "?" + urllib.parse.urlencode(params) + raw = _get(url, cfg) + data = json.loads(raw) if raw else {} + + maxn = int(inputs.get("max_indicators") or 0) + out = [] + for v in data.get("vulnerabilities", []): + cve = v.get("cve", {}) if isinstance(v, dict) else {} + cid = cve.get("id") + if not cid: + continue + desc = "" + for d in cve.get("descriptions", []): + if d.get("lang") == "en": + desc = d.get("value") + break + score, severity = _cvss(cve.get("metrics", {})) + out.append({ + "value": cid, + "type": "cve", + "description": desc, + "cvss": score, + "severity": severity, + "published": cve.get("published"), + "status": cve.get("vulnStatus"), + }) + if maxn and len(out) >= maxn: + break + + return { + "source": "nvd:recent", + "count": len(out), + "indicators": out, + "total_results": data.get("totalResults"), + } + + +_run(main) diff --git a/integrations/feed-nvd/scripts/test_connection.py b/integrations/feed-nvd/scripts/test_connection.py new file mode 100644 index 0000000..1ee56b4 --- /dev/null +++ b/integrations/feed-nvd/scripts/test_connection.py @@ -0,0 +1,55 @@ +import json, os, sys, ssl, urllib.parse, urllib.request, urllib.error + +BASE = "https://services.nvd.nist.gov/rest/json/cves/2.0" + + +def _cfg(): + return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}")) + + +def _inputs(): + return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}")) + + +def _ctx(cfg): + if cfg.get("insecure"): + c = ssl.create_default_context() + c.check_hostname = False + c.verify_mode = ssl.CERT_NONE + return c + return None + + +def _headers(cfg): + h = {"User-Agent": "Riposte-SOAR", "Accept": "application/json"} + k = cfg.get("api_key") + if k: + h["apiKey"] = str(k) + return h + + +def _get(url, cfg): + req = urllib.request.Request(url, headers=_headers(cfg)) + with urllib.request.urlopen(req, timeout=60, context=_ctx(cfg)) as r: + return r.read() + + +def _run(fn): + try: + print(json.dumps(fn(_cfg(), _inputs()))) + except urllib.error.HTTPError as e: + print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")})) + sys.exit(1) + except Exception as e: + print(json.dumps({"error": str(e)})) + sys.exit(1) + + +def main(cfg, inputs): + url = BASE + "?" + urllib.parse.urlencode({"resultsPerPage": 1}) + raw = _get(url, cfg) + data = json.loads(raw) if raw else {} + return {"ok": True, "total_results": data.get("totalResults")} + + +_run(main)