<p>DissPair is an open-source Bluetooth security toolkit for auditing <b>Bluetooth Classic (RFCOMM)</b> and <b>Bluetooth Low Energy (BLE)</b> devices you own or are authorized to test. Instead of trusting what a device advertises, it actively probes how the device really behaves. Two CVEs have been found with it (CVE-2026-31280, CVE-2025-67133).</p> <p><b>Discovery</b></p> <ul> <li>Scan Classic (BR/EDR) and BLE devices, plus already-paired devices</li> <li>Device class tags, RSSI and filters for unnamed and paired devices</li> </ul> <p><b>Bluetooth Classic (RFCOMM)</b></p> <ul> <li>Sweep RFCOMM channels 1-30 and see which accept unpaired (insecure) or paired connections</li> <li>Send AT commands and OBEX payloads, with automatic HFP handshake handling</li> <li>Flood test to stress a channel's buffer handling</li> </ul> <p><b>BLE advertisement inspector (GAP)</b></p> <ul> <li>Decodes every advertising field: flags, service UUIDs, names, TX power, appearance, service and manufacturer data</li> <li>Vendor formats: Apple Continuity (iBeacon, AirDrop, Handoff, Nearby Info, Find My), Eddystone, Google Fast Pair</li> <li>Privacy checks: public vs rotating addresses, identifiers in device names, tracker beacons (Find My, SmartTag, Tile)</li> <li>Advertising interval estimate, RSSI graph, legacy/extended PDU, PHY and connectable flags</li> </ul> <p><b>BLE GATT analysis</b></p> <ul> <li>Full service and characteristic map with standard and vendor names</li> <li>Read and write (with or without response), hex or text</li> <li>Subscribe to notifications and indications with a live log</li> <li>Automatic maximum MTU negotiation</li> </ul> <p><b>GATT access audit</b></p> <ul> <li>One tap tests what every characteristic allows without pairing: read, subscribe and write</li> <li>Results marked OPEN, AUTH, ENC, AUTHZ, KEY or DENY</li> <li>Optional write test: echo the value just read, or commit a chosen payload</li> <li>Exportable text report for vendor disclosure</li> </ul> <p