[Kimchi-devel] [PATCH v4] [Wok] Bug fix #147: Block authentication request after too many failures
ramonn at linux.vnet.ibm.com
ramonn at linux.vnet.ibm.com
Fri Feb 3 17:34:49 UTC 2017
From: Ramon Medeiros <ramonn at linux.vnet.ibm.com>
To prevent brute force attack, creates a mechanism to allow 3 tries
first. After that, a timeout will start and will be added 30 seconds for
each failed try in a row.
Signed-off-by: Ramon Medeiros <ramonn at linux.vnet.ibm.com>
---
Changes:
v4:
Use API.json for input validation
v3:
Improve error handling on login page
v2:
Set timeout by user, ip and session id. This will avoid trouble with
users using the same ip, like NAT.
src/wok/API.json | 25 +++++++++++++++++-
src/wok/i18n.py | 5 +++-
src/wok/root.py | 69 +++++++++++++++++++++++++++++++++++++++++-------
ui/js/src/wok.login.js | 19 ++++++++-----
ui/pages/i18n.json.tmpl | 5 +++-
ui/pages/login.html.tmpl | 6 ++---
6 files changed, 106 insertions(+), 23 deletions(-)
diff --git a/src/wok/API.json b/src/wok/API.json
index 8965db9..3f7bfd7 100644
--- a/src/wok/API.json
+++ b/src/wok/API.json
@@ -2,5 +2,28 @@
"$schema": "http://json-schema.org/draft-03/schema#",
"title": "Wok API",
"description": "Json schema for Wok API",
- "type": "object"
+ "type": "object",
+ "properties": {
+ "wokroot_login": {
+ "type": "object",
+ "properties": {
+ "username": {
+ "description": "Username",
+ "required": true,
+ "type": "string",
+ "minLength": 1,
+ "error": "WOKAUTH0003E"
+ },
+ "password": {
+ "description": "Password",
+ "required": true,
+ "type": "string",
+ "minLength": 1,
+ "error": "WOKAUTH0006E"
+ }
+ },
+ "additionalProperties": false,
+ "error": "WOKAUTH0007E"
+ }
+ }
}
diff --git a/src/wok/i18n.py b/src/wok/i18n.py
index 935c9c1..5ad5e57 100644
--- a/src/wok/i18n.py
+++ b/src/wok/i18n.py
@@ -40,8 +40,11 @@ messages = {
"WOKAUTH0001E": _("Authentication failed for user '%(username)s'. [Error code: %(code)s]"),
"WOKAUTH0002E": _("You are not authorized to access Wok. Please, login first."),
- "WOKAUTH0003E": _("Specify %(item)s to login into Wok."),
+ "WOKAUTH0003E": _("Specify username to login into Wok."),
+ "WOKAUTH0004E": _("You have failed to login in too much attempts. Please, wait for %(seconds)s seconds to try again."),
"WOKAUTH0005E": _("Invalid LDAP configuration: %(item)s : %(value)s"),
+ "WOKAUTH0006E": _("Specify password to login into Wok."),
+ "WOKAUTH0007E": _("You need to specify username and password to login into Wok."),
"WOKLOG0001E": _("Invalid filter parameter. Filter parameters allowed: %(filters)s"),
"WOKLOG0002E": _("Creation of log file failed: %(err)s"),
diff --git a/src/wok/root.py b/src/wok/root.py
index 080b7f0..9f6b7b3 100644
--- a/src/wok/root.py
+++ b/src/wok/root.py
@@ -1,7 +1,7 @@
#
# Project Wok
#
-# Copyright IBM Corp, 2015-2016
+# Copyright IBM Corp, 2015-2017
#
# Code derived from Project Kimchi
#
@@ -21,7 +21,9 @@
import cherrypy
import json
+import re
import os
+import time
from distutils.version import LooseVersion
from wok import auth
@@ -30,8 +32,8 @@ from wok.i18n import messages
from wok.config import paths as wok_paths
from wok.control import sub_nodes
from wok.control.base import Resource
-from wok.control.utils import parse_request
-from wok.exception import MissingParameter
+from wok.control.utils import parse_request, validate_params
+from wok.exception import UnauthorizedError, WokException
from wok.reqlogger import log_request
@@ -48,7 +50,8 @@ class Root(Resource):
super(Root, self).__init__(model)
self._handled_error = ['error_page.400', 'error_page.404',
'error_page.405', 'error_page.406',
- 'error_page.415', 'error_page.500']
+ 'error_page.415', 'error_page.500',
+ 'error_page.403', 'error_page.401']
if not dev_env:
self._cp_config = dict([(key, self.error_production_handler)
@@ -146,6 +149,7 @@ class WokRoot(Root):
self.domain = 'wok'
self.messages = messages
self.extends = None
+ self.failed_logins = {}
# set user log messages and make sure all parameters are present
self.log_map = ROOT_REQUESTS
@@ -153,24 +157,71 @@ class WokRoot(Root):
@cherrypy.expose
def login(self, *args):
+ def _raise_timeout(user_id):
+ length = self.failed_logins[user_ip_sid]["count"]
+ timeout = (length - 3) * 30
+ details = e = UnauthorizedError("WOKAUTH0004E",
+ {"seconds": timeout})
+ log_request(code, params, details, method, 403)
+ raise cherrypy.HTTPError(403, e.message)
details = None
method = 'POST'
code = self.getRequestMessage(method, 'login')
try:
params = parse_request()
+ validate_params(params, self, "login")
username = params['username']
password = params['password']
- except KeyError, item:
- details = e = MissingParameter('WOKAUTH0003E', {'item': str(item)})
- log_request(code, params, details, method, 400)
- raise cherrypy.HTTPError(400, e.message)
+ except WokException, e:
+ details = e
+ status = e.getHttpStatusCode()
+ raise cherrypy.HTTPError(status, e.message)
+
+ # get authentication info
+ remote_ip = cherrypy.request.remote.ip
+ session_id = str(cherrypy.session.originalid)
+ user_ip_sid = re.escape(username + remote_ip + session_id)
+
+ # check for repetly
+ count = self.failed_logins.get(user_ip_sid, {"count": 0}).get("count")
+ if count > 3:
+
+ # verify if timeout is still valid
+ last_try = self.failed_logins[user_ip_sid]["time"]
+ if time.time() < (last_try + ((count - 3) * 30)):
+ _raise_timeout(user_ip_sid)
+ else:
+ self.failed_logins.pop(user_ip_sid)
try:
status = 200
user_info = auth.login(username, password)
+
+ # user logged sucessfuly: reset counters
+ if self.failed_logins.get(user_ip_sid) != None:
+ self.failed_logins.pop(user_ip_sid)
except cherrypy.HTTPError, e:
- status = e.status
+
+ # store time and prevent too much tries
+ if self.failed_logins.get(user_ip_sid) == None:
+ self.failed_logins[user_ip_sid] = {"time": time.time(),
+ "ip": remote_ip,
+ "session_id": session_id,
+ "username": username,
+ "count": 1}
+ else:
+ # tries take more than 30 seconds between each one: do not
+ # increase count
+ if (time.time() -
+ self.failed_logins[user_ip_sid]["time"]) < 30:
+
+ self.failed_logins[user_ip_sid]["time"] = time.time()
+ self.failed_logins[user_ip_sid]["count"] += 1
+
+ # more than 3 fails: raise error
+ if self.failed_logins[user_ip_sid]["count"] > 3:
+ _raise_timeout(user_ip_sid)
raise
finally:
log_request(code, params, details, method, status)
diff --git a/ui/js/src/wok.login.js b/ui/js/src/wok.login.js
index 666a339..9e2a392 100644
--- a/ui/js/src/wok.login.js
+++ b/ui/js/src/wok.login.js
@@ -19,6 +19,10 @@
*/
wok.login_main = function() {
"use strict";
+ var i18n;
+ wok.getI18n(function(i18nObj){
+ i18n = i18nObj;
+ }, false, "i18n.json", true);
// verify if language is available
var selectedLanguage = wok.lang.get();
@@ -50,7 +54,8 @@ wok.login_main = function() {
var query = window.location.search;
var error = /.*error=(.*?)(&|$)/g.exec(query);
if (error && error[1] === "sessionTimeout") {
- $("#messSession").show();
+ $("#errorArea").html(i18n["WOKAUT0001E"]);
+ $("#errorArea").show();
}
var userNameBox = $('#username');
@@ -82,13 +87,13 @@ wok.login_main = function() {
window.location.replace(window.location.pathname.replace(/\/+login.html/, '') + next_url);
}, function(jqXHR, textStatus, errorThrown) {
if (jqXHR.responseText == "") {
- $("#messUserPass").hide();
- $("#missServer").show();
- } else {
- $("#missServer").hide();
- $("#messUserPass").show();
+ $("#errorArea").html(i18n["WOKAUT0002E"]);
+ $("#errorArea").show();
+ } else if ((jqXHR.responseJSON != undefined) &&
+ ! (jqXHR.responseJSON["reason"] == undefined)) {
+ $("#errorArea").html(jqXHR.responseJSON["reason"]);
+ $("#errorArea").show();
}
- $("#messSession").hide();
$("#logging").hide();
$("#login").show();
});
diff --git a/ui/pages/i18n.json.tmpl b/ui/pages/i18n.json.tmpl
index ba29532..4329ad0 100644
--- a/ui/pages/i18n.json.tmpl
+++ b/ui/pages/i18n.json.tmpl
@@ -1,7 +1,7 @@
#*
* Project Wok
*
- * Copyright IBM Corp, 2014-2016
+ * Copyright IBM Corp, 2014-2017
*
* Code derived from Project Kimchi
*
@@ -39,6 +39,9 @@
"WOKHOST6001M": "$_("Max:")",
+ "WOKAUT0001E": "$_("Session timeout, please re-login.")",
+ "WOKAUT0002E": "$_("Server unreachable")",
+
"WOKSETT0001M": "$_("Application")",
"WOKSETT0002M": "$_("User")",
"WOKSETT0003M": "$_("Request")",
diff --git a/ui/pages/login.html.tmpl b/ui/pages/login.html.tmpl
index f5a4b2d..6f967cf 100644
--- a/ui/pages/login.html.tmpl
+++ b/ui/pages/login.html.tmpl
@@ -1,7 +1,7 @@
#*
* Project Wok
*
- * Copyright IBM Corp, 2014-2016
+ * Copyright IBM Corp, 2014-2017
*
* Code derived from Project Kimchi
*
@@ -104,9 +104,7 @@
<div class="container">
<div id="login-window" class="login-area row">
<div class="err-area">
- <div id="messUserPass" class="alert alert-danger" style="display: none;">$_("The username or password you entered is incorrect. Please try again.")</div>
- <div id="messSession" class="alert alert-danger" style="display: none;">$_("Session timeout, please re-login.")</div>
- <div id="missServer" class="alert alert-danger" style="display: none;">$_("Server unreachable.")</div>
+ <div id="errorArea" class="alert alert-danger" style="display: none;"></div>
</div>
<form id="form-login" class="form-horizontal" method="post">
<div class="form-group">
--
2.10.1 (Apple Git-78)
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