offensive-bluetooth-classic — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited offensive-bluetooth-classic (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
Older than BLE, less commonly attacked today, but still present in cars, industrial sensors, audio gear, and legacy enterprise hardware. Many of the well-known historic attacks (BlueSnarf, BlueBug) are mitigated; KNOB and the BlueBorne family remain relevant against unpatched devices.
hcitool / bluetoothctl / redfang# Modern adapter (built-in or USB Bluetooth 4.0+)
sudo hciconfig hci0 up
sudo hcitool inq # inquiry
sudo hcitool scan --length=12 # 12-second scan
# bluetoothctl interactive
bluetoothctl
> scan on
> devices
# Discoverable-mode-only devices appear; non-discoverable need address brute
sudo redfang -r 00:00:00:00:00:00-FF:FF:FF:FF:FF:FF
# (very slow — ~7 hours per OUI prefix)# List all services on a device
sdptool browse AA:BB:CC:DD:EE:FF
sdptool records AA:BB:CC:DD:EE:FFCommon profiles and their attack relevance:
| Profile | UUID | Attack |
|---|---|---|
| OBEX Object Push (OPP) | 0x1105 | BlueSnarf/BlueBug on legacy phones (mostly extinct) |
| OBEX File Transfer (FTP) | 0x1106 | Browse / write filesystem on legacy devices |
| Headset (HSP/HFP) | 0x1108 / 0x111E | Eavesdrop active call audio |
| Serial Port Profile (SPP) | 0x1101 | Industrial/IoT debug ports — often unauthenticated |
| HID | 0x1124 | Keyboard/mouse impersonation |
| Audio Sink/Source (A2DP) | 0x110B / 0x110A | Audio injection/eavesdrop |
The Serial Port Profile (SPP) tunnels arbitrary data over Bluetooth as a virtual COM port. Industrial / IoT devices use it for debug or telemetry, often without authentication.
# Connect to SPP service, channel typically 1
sudo rfcomm bind /dev/rfcomm0 AA:BB:CC:DD:EE:FF 1
sudo screen /dev/rfcomm0 9600
# Then interact with the device's CLI / debug menuForces Bluetooth pairing to negotiate a 1-byte encryption key — making the link key trivially brute-forceable.
# Test with internalblue (requires Broadcom firmware patch)
git clone https://github.com/seemoo-lab/internalblue
internalblue
> log keys
# Patch firmware to allow 1-byte key; pair with target; observe weak keyPatched in firmware on most modern devices. Still works against:
A family of buffer overflows / info leaks in major Bluetooth stacks (Linux BlueZ, Android, Windows, iOS). Mostly patched 2017–2018, but unpatched embedded Linux devices are common.
# Armis blueborne-scanner — checks for patch-level
git clone https://github.com/ArmisSecurity/blueborne
python blueborne_scanner.py AA:BB:CC:DD:EE:FFIf pairing succeeds via Just Works or weak PIN, you can register as a HID device — keystroke injection on an unattended Bluetooth-paired host.
# bdaddr + HID example — register custom HID on rfcomm
hcitool dev
hciconfig hci0 class 0x000540 # HID device class
sdptool add HID
# Use a HID descriptor crafted as keyboard, send keystrokesIf a target has Bluetooth headset paired and active, and you can re-pair (PIN brute or KNOB):
# 1. Discover
sudo hcitool inq
# 2. Enumerate services per device
sdptool browse <MAC>
# 3. SPP (industrial/IoT) — connect and explore
sudo rfcomm bind /dev/rfcomm0 <MAC> 1
sudo screen /dev/rfcomm0 9600
# 4. Patch-level scan
python blueborne_scanner.py <MAC>
# 5. KNOB testing (with adapter that supports internalblue)
internalblue → log keys → re-pair target
# 6. Document profiles, auth state, exposed commands per device~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.