Class: Yawast::Scanner::Plugins::Http::FilePresence

Inherits:
Object
  • Object
show all
Defined in:
lib/scanner/plugins/http/file_presence.rb

Class Method Summary collapse

Class Method Details

.check_all(uri, common_files) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 30

def self.check_all(uri, common_files)
  # first, we need to see if the site responds to 404 in a reasonable way
  unless Yawast::Shared::Http.check_not_found(uri, true)
    puts 'Site does not respond properly to non-existent file requests; skipping some checks.'

    return
  end

  check_source_control uri
  check_cross_domain uri
  check_sitemap uri
  check_wsftp_log uri
  check_trace_axd uri
  check_elmah_axd uri
  check_readme_html uri
  check_release_notes_txt uri
  check_change_log_txt uri

  if common_files
    puts ''
    puts 'Checking for common files (this will take a few minutes)...'
    check_common uri
  end

  puts ''
end

.check_change_log_txt(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 97

def self.check_change_log_txt(uri)
  check_path(uri, '/CHANGELOG.txt', false)
  check_path(uri, '/core/CHANGELOG.txt', false)
end

.check_common(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 102

def self.check_common(uri)
  begin
    @search_list = []

    File.open(File.dirname(__FILE__) + '/../../../resources/common_file.txt', 'r') do |f|
      f.each_line do |line|
        @search_list.push line.strip
      end
    end

    pool_size = 16
    @jobs = Queue.new
    @results = Queue.new

    # load the queue, starting at /
    base = uri.copy
    base.path = '/'
    load_queue base

    workers = (pool_size).times.map do
      Thread.new do
        begin
          while (check = @jobs.pop(true))
            process check
          end
        rescue ThreadError
          #do nothing
        end
      end
    end

    results = Thread.new do
      begin
        while true
          if @results.length.positive?
            out = @results.pop(true)
            Yawast::Utilities.puts_info out
          end
        end
      rescue ThreadError # rubocop:disable Lint/HandleExceptions
        # do nothing
      end
    end

    workers.map(&:join)
    results.terminate
  rescue => e # rubocop:disable Style/RescueStandardError
    Yawast::Utilities.puts_error "Error searching for files (#{e.message})"
  end
end

.check_cross_domain(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 65

def self.check_cross_domain(uri)
  check_path(uri, '/crossdomain.xml', false)
  check_path(uri, '/clientaccesspolicy.xml', false)
end

.check_elmah_axd(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 84

def self.check_elmah_axd(uri)
  check_path(uri, '/elmah.axd', false)
end

.check_path(uri, path, vuln) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 10

def self.check_path(uri, path, vuln)
  # note: this only checks directly at the root, I'm not sure if this is what we want
  # should probably be relative to what's passed in, instead of overriding the path.
  check = uri.copy
  check.path = path.to_s
  code = Yawast::Shared::Http.get_status_code(check)

  if code == '200'
    msg = "'#{path}' found: #{check}"

    if vuln
      Yawast::Utilities.puts_vuln msg
    else
      Yawast::Utilities.puts_warn msg
    end

    puts ''
  end
end

.check_readme_html(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 88

def self.check_readme_html(uri)
  check_path(uri, '/readme.html', false)
end

.check_release_notes_txt(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 92

def self.check_release_notes_txt(uri)
  check_path(uri, '/RELEASE-NOTES.txt', false)
  check_path(uri, '/docs/RELEASE-NOTES.txt', false)
end

.check_sitemap(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 70

def self.check_sitemap(uri)
  check_path(uri, '/sitemap.xml', false)
end

.check_source_control(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 57

def self.check_source_control(uri)
  check_path(uri, '/.git/', true)
  check_path(uri, '/.hg/', true)
  check_path(uri, '/.svn/', true)
  check_path(uri, '/.bzr/', true)
  check_path(uri, '/.csv/', true)
end

.check_trace_axd(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 80

def self.check_trace_axd(uri)
  check_path(uri, '/Trace.axd', false)
end

.check_wsftp_log(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 74

def self.check_wsftp_log(uri)
  # check both upper and lower, as they are both seen in the wild
  check_path(uri, '/WS_FTP.LOG', false)
  check_path(uri, '/ws_ftp.log', false)
end

.load_queue(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 153

def self.load_queue(uri)
  @search_list.each do |line|
    check = uri.copy

    begin
      check.path = "/#{line}"

      # add the job to the queue
      @jobs.push check
    rescue # rubocop:disable Lint/HandleExceptions
      # who cares
    end
  end
end

.process(uri) ⇒ Object 



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# File 'lib/scanner/plugins/http/file_presence.rb', line 168

def self.process(uri)
  begin
    res = Yawast::Shared::Http.head uri

    if res.code == '200'
      @results.push "'#{uri.path}' found: #{uri}"
      Yawast::Shared::Output.log_append_value 'http', 'http_file', uri
    end
  rescue => e # rubocop:disable Style/RescueStandardError
    unless e.message.include?('end of file') || e.message.include?('getaddrinfo')
      Yawast::Utilities.puts_error "Error searching for file '#{uri.path}' (#{e.message})"
    end
  end
end