Module: Msf::Exploit::Remote::HTTP::Splunk::Login

Included in:
Msf::Exploit::Remote::HTTP::Splunk
Defined in:
lib/msf/core/exploit/remote/http/splunk/login.rb

Overview

Module with Splunk login related methods

Instance Method Summary collapse

Instance Method Details

#splunk_default_creds ⇒ Array?

Return the default credentials if found

Returns:

  • (Array, nil) —

    username, password if found, nil otherwise



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# File 'lib/msf/core/exploit/remote/http/splunk/login.rb', line 64

def splunk_default_creds
  p = %r{Splunk's default credentials are </p><p>username: <span>(.+)</span><br />password: <span>(.+)</span>}
  res = send_request_raw({ 'uri' => target_uri.path })
  user, pass = res.body.scan(p).flatten
  return [user, pass] if user && pass
end

#splunk_is_auth_required? ⇒ Boolean

The free version of Splunk does not require authentication. Instead, it’ll log the user right in as ‘admin’. If that’s the case, no point to brute-force, either.

Returns:

  • (Boolean) —

    true if auth is required, false otherwise



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# File 'lib/msf/core/exploit/remote/http/splunk/login.rb', line 51

def splunk_is_auth_required?
  cookie = splunk_helper_extract_token
  res = send_request_raw({
    'uri' => splunk_home,
    'cookie' => cookie
  })

  !(res && res.body =~ /Logged in as (.+)/)
end

#splunk_login(username, password, timeout = 20) ⇒ String?

performs a splunk login

Parameters:

  • username (String) —

    Username

  • password (String) —

    Password

  • timeout (Integer) (defaults to: 20) —

    The maximum number of seconds to wait before the request times out

Returns:

  • (String, nil) —

    the session cookies as a single string on successful login, nil otherwise



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# File 'lib/msf/core/exploit/remote/http/splunk/login.rb', line 11

def (username, password, timeout = 20)
  # gets cval cookies
  cookie = splunk_helper_extract_token(timeout)
  if cookie.nil?
    vprint_error('Unable to extract login tokens')
    return nil
  end

  cval_value = cookie.match(/cval=([^;]*)/)[1]
  # login post, should get back the splunkd_port and splunkweb_csrf_token_port cookies
  res = send_request_cgi({
    'uri' => ,
    'method' => 'POST',
    'cookie' => cookie,
    'vars_post' =>
      {
        'username' => username,
        'password' => password,
        'cval' => cval_value
      }
  }, timeout)

  unless res
    vprint_error("FAILED LOGIN. '#{username}' : '#{password}' returned no response")
    return nil
  end

  unless res.code == 303 || (res.code == 200 && res.body.to_s.index('{"status":0}'))
    vprint_error("FAILED LOGIN. '#{username}' : '#{password}' with code #{res.code}")
    return nil
  end

  print_good("SUCCESSFUL LOGIN. '#{username}' : '#{password}'")
  return cookie << " #{res.get_cookies}"
end

#splunk_login_with_default_creds ⇒ String?

Extract and test the default credentials, if found

Returns:

  • (String, nil) —

    the session cookies as a single string on successful login, nil otherwise



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# File 'lib/msf/core/exploit/remote/http/splunk/login.rb', line 74

def 
  user, pass = splunk_default_creds
  (user, pass) if user && pass
end