An application that is accessed over a network such as the Internet or an intranet using a browser.

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-1
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0answers
16 views

Is it secure to use intermediate files for login and other files?

I am developing a web application. At some point, I am using intermediate files. For example, user loads login page. After submitting, it redirects to direct.asp or direct.php file. After that direct ...
0
votes
2answers
40 views

How can a keylogger gather & transmit data from a client-only webapp run from file?

For a client-side only webapp run from file, how can a keylogger gather data and then transmit it? In this scenario, please limit the scope to the client code only, that an attacker somehow has ...
0
votes
1answer
142 views

How were hackers able to alter the text of my pages without a form or querystring?

I maintain a small site that runs old-fashioned classic ASP pages with an Access backend. Recently, the site got hacked. The attacker managed to add a large quantity of code to the index.asp page. ...
-1
votes
2answers
42 views

How to prevent accessing secure cross-domain data store

I have a client that needs to be able to secure a data site from hackers. This is the methodology we currently are looking at: server.com (web server) —> HTTP JSON API request —> dataStore.net (data ...
0
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0answers
23 views

Secure access of web application on a newly created AWS instance using the associated keypair

I create an AWS instance using a private AMI (Linux) with an embedded web application (Jetty) which is activated on instance start. As soon as the instance is launched first time, I want the ...
0
votes
2answers
80 views

How to ensure that only my single page app can make requests to an API

I have a REST API that can potentially serve multiple web clients. I want to ensure that only my single page app on my-one-and-only-web-cleint.com can make requests to my API. How do I do this? ...
1
vote
2answers
73 views

Database compromised and some passwords cracked

I run an MMORPG game and today while moving from one server to another, apache failed and listed some of the data on the server including a back-up of all the source code + database which a few people ...
0
votes
1answer
32 views

Secure Django Application

What are some of the recommended configuration settings to secure your Django application? i.e. best practices for settings.py file. I researched and came across some: SESSION_COOKIE_SECURE = True ...
2
votes
1answer
104 views

How can I avoid Canvas Fingerprinting?

Canvas Fingerprinting has been getting a lot of press these last few days. Here is a study I read on this topic: 1 and 2 What can I do to keep browsing anonymously and avoid this tracking method?
-3
votes
0answers
22 views

IBM TAM and Webseal for securing web applications [closed]

I have to evaluate which are the best Products to secure numerous web applications that are running in an Organization. I also need to enable SSO for them. The two products that I am considering are ...
-1
votes
0answers
21 views

Allowing third-party clients to authenticate with an app server

I'm working on an app that is planned to be licensed to OEMs, who would in turn offer it as a service to their users.  We would host the app server and the OEM would optionally host the app's web ...
-2
votes
1answer
50 views

protect files on webserver, allow only internal use

I have a website and it has an audio player to play music files, the music files are hosted in a public directory. Since they are they anyome can point there and use the files on their website. Is ...
2
votes
2answers
67 views

Content sniffing XSS attack?

As a part of work, I've come across content sniffing, and i understand web apps can be vulnerable to xss because of it. There is another post, regarding content sniffing and xss, but didnt quite ...
0
votes
1answer
32 views

Tracking IP address to prevent abuse without logging user metadata

I am trying to balance good security practices against excessive logging of user metadata / Personally Identifiable Information. I am constructing a web app that tracks IP addresses to prevent abuse, ...
1
vote
1answer
110 views

Why use an authentication token instead of the username/password per request?

The author of http://stackoverflow.com/a/477578/14731 recommends: DO NOT STORE THE PERSISTENT LOGIN COOKIE (TOKEN) IN YOUR DATABASE, ONLY A HASH OF IT! [...] use strong salted hashing (bcrypt / ...
0
votes
2answers
55 views

How to securely serve client-side-only web content to mobile with convenience?

For a cryptocurrency client implementation, I am serving a single page webapp to mobile clients. It is a client-side-only page. I would like to serve this page to clients, but I fear tampering by ...
1
vote
1answer
65 views

What is the point of hosting database externally?

Following the breach of avast:forum.avast.com they decided to host the database externally@id.avast.com. My question is, what is the point of hosting the database externally since when you get remote ...
4
votes
5answers
306 views

Should I add protections where I dont understand how hacker can break system?

Lets say there is an AJAX application where the user can submit items - buy them. And there was a code IF ($_POST[items] > 20) { echo 'error'; } else { do_buy($_POST[items]); echo ...
0
votes
0answers
42 views

Authentication for my app

i'm currently building an authentication module and got a question about something, I have setup a server with an api and want my users to authenticate to this server but everything with angular is ...
0
votes
1answer
63 views

A no-login approach to authenticating a certain device, MAC-Address as password?

I have created a REST api, and now i'm thinking about authentication. I want the mobile application's flow for the user to be very simple: only having to enter a username and then this username ...
0
votes
0answers
34 views

Steps for creating a test environment where GUIDs are exploitable?

I have been using GUIDs as un-guessable tokens in various situations for some time. I came across this question/answer which seems to suggest that while this is ok in some situations, it should not ...
3
votes
2answers
104 views

how to scan a web application that uses Captcha

I have a web application I am doing a security assessment on and it uses captcha for both the login and for certain operations inside the app. The interesting thing is that this particular app ...
1
vote
2answers
90 views

Must login and logout action have CSRF protection?

I am making a web application in Django which generates and includes CSRF tokens for sessions (a Django session can be anonymous or a registered user). Should I keep CSRF protection to the controllers ...
0
votes
1answer
26 views

Does ASP.NET guarantee the integrity of a page's controls on a post back?

Say you have an ASP.NET page that lists the prices for certain items in labels. I know it's cringe-worthy, but say you took the price of the item from the label on the page to determine what the user ...
1
vote
2answers
74 views

Creating an application in which all user content is encrypted

Does any one have references or sources on how to approach developing a web application in which the content is encrypted and unreadable for the developers or company owners; I'm referring to content ...
2
votes
1answer
152 views

Is this a bot fishing for security vulnerabilities on my site?

I am running a webpage for my family with a feature to track users and guests. Since its all just family stuff no one ever visits this server, and I hardly see more than 2-3 of us logged on at the ...
0
votes
1answer
29 views

benefits of xinetd for a web server

What are the pros and cons of using xinetd for a web server running on a VPS. Assume the following measures have already been taken to secure the system: system hardening, latest updates, minimal ...
0
votes
0answers
52 views

Industry average for security as a percentage of product budget?

Lets assume the product is pure software or a blend of software and cheap commodity hardware. Is there any work showing what the average industry spending is on just the security aspects as a ...
0
votes
0answers
27 views

Securing user postal address in a database?

I've been assigned a web project that deals with shipping goods between two parties. I am unsure what a secure database scheme (if any) would be for storing the recipient's postal address and whether ...
6
votes
2answers
970 views

Is this an XSS vulnerability?

My company recently had a security assessment done on our website and we had a XSS vulnerability reported. Below are the details of the reported vulnerability: If a user hits a URL like the one ...
0
votes
0answers
36 views

Is opportunistic encryption support optional for HTTP/2?

I'm a little unclear on the subject of opportunistic encryption of the HTTP:// address scheme in HTTP/2. According to the bug report, it looks like it's kinda optional, and an afterthought: ...
5
votes
2answers
127 views

How can I enable opportunistic encryption for my web-site?

As per an honourable mention in an answer for « Why self-signed https is less trustworthy than unencrypted http? », it appears that there are already two post-Snowden drafts that have to ...
4
votes
2answers
221 views

Learning XSS: Why is my javascript ignored?

<a href='mailto:</a><script>/*'></a><script>/*</a>: <br> <hr> <a href='mailto:*/location.href=/*'>*/location.href=/*</a>: <br> ...
3
votes
4answers
256 views

Why self-signed https is less trustworthy than unencrypted http?

It wouldn't be far-fetched to guesstimate that at least 50% of the web traffic can be intercepted in 2014. However, a guesstimate of active interception attacks is likely an order of magnitude ...
1
vote
1answer
120 views

SQL truncation vulnerability

I came to know the SQL truncation vulnerability that I wasn't aware of. It is my understanding that this vulnerability is based on the fact that MySQL truncates the value of an "insert query" whether ...
2
votes
3answers
89 views

Separate log-in panel for administrators?

I have a dispute with my father about the following ... I want to make a website (with MySql database) and use the root/index - page for BOTH the log in entry for normal visitors AND log in for ...
10
votes
4answers
2k views

Authenticating without a database

I've been inspired by a question over on Code Review, which boils down to: What is the proper way to authenticate a user without a database? Would it be the exact same process if you stored ...
5
votes
3answers
590 views

Can allowing a web application to move, copy and/or delete files outside of the server root be a security issue?

I am new at using and programming web applications, so I wanted to ask a question. Is it safe to execute os commands like copy and mv and delete from a web app that is running on an apache, or does it ...
4
votes
2answers
142 views

You've just acquired a newly created CentOS server, what should you do to secure it?

I've just acquired a new CentOS server, which will be hosting a Ruby on rails application, it is public facing. What should I do to secure this server?
0
votes
1answer
56 views

Security of starbucks gift card redemption feature

Someone sent me a Starbucks gift card. The email contained a redemption link, and that redemption link ended in a long secure hash, much like those on github secret gists. Clicking the redemption ...
0
votes
1answer
25 views

How should I validate an API key for a web service deployed via iframe?

I'm working on a small web service that provides some functionality that can be embedded in a web page with an iframe. As this is a subscription-based service, I'd like to be able to manage who can ...
2
votes
3answers
213 views

How to store passwords securely in my server?

Disclaimer: I know I should use bcrypt to securely store user's passwords. Please, keep reading. I want to store credentials for several email services for each user. So if I log in with my username ...
1
vote
1answer
142 views

Theoretical home grown password options, or what is it that SCrypt, BCrypt, PBKDF2 does that is so special?

I'm developing a personal web framework, nothing internetty, and probably not even anything that will ever go on my personal LAN. And looking for password advice people seem to only recommend those ...
1
vote
2answers
73 views

In two step authentication, should I check step 1 before proceeding to step 2 or check both at the end?

I asked this question first on Stack Overflow but it was suggested that Information Security would be a better place for it (pretty obvious in hindsight). ...
5
votes
5answers
197 views

Is sending plain passwords over SSL as part of a password update process bad?

The Web application I'm working on is 100% SSL secured (or rather TLS as it is called today...). The application recently has been audited by a security company. I mostly agree with their results but ...
2
votes
2answers
425 views

Protecting hidden form fields

The scenario is as follows: An application has a web interface through which data can be configured. The data to consider for this question is Users with a many-to-many relationship with Groups. ...
0
votes
1answer
57 views

How do I secure “Data at Rest” only allowing Service API to access it from a mobile application

How do I secure data at rest from unauthorized access, but still allowing my application to access the data using user authentication over HTTPS? My scenario is as follows: Login to application ...
0
votes
1answer
39 views

When is it appropriate to provide clickjacking protection one of my websites pages?

I run a couple of websites, so I'm just wondering what is the appropriate use of clickjacking protection like the x-frame-options response header? What pages are susceptible to this kind of attack on ...
0
votes
0answers
75 views

Socket.IO & WebSocket security - query certifcate/public key a leak?

Socket.IO and WebSocket do not provide underlying connection information (like the certificate or public key of the SSL/TLS channel), and I'm trying to understand the reasoning. The context for this ...
0
votes
1answer
137 views

SQL injection is possible but selected queries not working

I'm black-box testing an application which uses java spring framework and MySQL in the back-end. When I insert a single quote (') in a text box field, the server returns a HTTP status code 500 ...