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

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-1
votes
1answer
39 views

SSL cert and region performance [closed]

I was asked to find the best available SSL cert for deploying a global solution in which performance is critical. But... does it really matter who is going to be the CA? AFAIK (never set up SSL ...
0
votes
0answers
47 views

Encoding payloads for GWT version 7

I'm auditing a website built with Google Web Toolkit. It uses serialization version 7, so the tools from GDS Security won't work (they only work till version 5). Using this technique I got all classes,...
-5
votes
1answer
88 views

Mobile number tracking

Is there any way we can track our mobile when it is lost? I have done a google search on the same and found that we have websites which give us the details of where the SIM was purchased & ...
6
votes
2answers
142 views

Malicious user inflicting XSS attacks appears to be on my own network

I have a live Django project where I'm using nginx as a reverse proxy with gunicorn as the application server. It's a fairly new project and isn't SSL enabled yet. There's a user on this project who's ...
5
votes
3answers
1k views

CSRF Protection on static pages

I have a static site which has forms. The forms submit to a Rails endpoint which captures the submitted data. The static site and the Rails endpoint are on the same domain, on different subdomains and ...
-2
votes
2answers
185 views

How to securely transfer password from a registration page to the database [duplicate]

What steps must be followed to send password securely from the user registration page (i.e. client side) to the server over a non encrypted channel (http) when the user registers for the first time on ...
1
vote
1answer
90 views

Benefits of injecting antivirus inside browser

Some antiviruses propose you to use their browser plug-ins. For instance, Avast SafeZone propose you reactive defend by checking signatures of keylogers/malware/spyware etc. But, what's the benefit ...
18
votes
4answers
5k views

Is there a way to download a PHP file without it being executed?

I recently got a phishing mail of unusually bad quality; "Please imediatly sign in under the following link, as we are your bank, you know"-ish. The link points to an unconvincing URL with .php at the ...
1
vote
2answers
182 views

SafeZone: keyloggers/malware/spyware protection

As part of Avast free updates you have a chance to use SafeZone browser. Among features of SafeZone browser I found that SafeZone protects you from keyloggers/malware/spyware. I'm interesting ...
30
votes
4answers
2k views

Is it okay to reveal database's table names?

I'm developing web application that uses database. I have to do some operations which needs database table names and db table schema. Will it be secure if I send this kind of information to client ...
3
votes
1answer
459 views

Is my server being used as a proxy or being attacked?

I have an Ubuntu, Apache, Passenger, and Rails 4 project on AWS EC2. I am unfamiliar with the security and server side of my project. Recently, my site was down because of "too many users" so when I ...
3
votes
3answers
374 views

Is web application connected to a database via an application server is more secure?

I have heard from my colleagues and some other people on web suggest that it is more secure to run this configuration: Web server -> Application server -> Database, than this: Web server -> ...
5
votes
4answers
226 views

Is information disclosure in a form of a server header is a real vulnerability?

I have seen in many places that people say that headers of the following types is a vulnerability: Server:Microsoft-IIS/7.5 X-AspNet-Version:4.0.30319 X-Powered-By:ASP.NET I can see that this gives ...
2
votes
0answers
63 views

Methods for allowing restricted access to web applications

Since I'm fully aware that allowing access for anybody to open web hosting control panel (login page), can be a little bit risky, I started to think about restricting access and allowing only for my ...
3
votes
1answer
98 views

Why attack detection based on the same user request from different places (e.g. by IP) is not widely used?

There are many ways how an adversary can pretend that he is a legitimate user (like session cookie stealing, bruteforcing the password and what not), but as far as I can see it should be rather hard ...
3
votes
1answer
76 views

Is same origin policy for web only useful because of cookies?

There is a same origin policy in the browser to ensure that e.g. bad site won't read your data from Facebook. But it seems that the only problem that it tries to solve is that cookies are ...
2
votes
2answers
89 views

Should it be possible in a good software, using a “Change Password” link for a single user, to try to guess passwords for every user of a Application?

I am having a fight with the "Security Expert" of my team about this very basic question and I need help in getting a good valid argument(s). The pretext is as follows: Should it be possible/valid to ...
3
votes
1answer
148 views

web application extracts uploaded tar files, is it vulnerable?

I have a python based web application running on a linux server, Is the following flow vulnerable? HTTP file upload (regular post from browser) server validates max size before processes the file (...
7
votes
2answers
132 views

How can I implement a secure download area on a website which requires an electronic signature?

For quality management purposes, the company I work for would like a system which requires a client to read through a disclaimer and then provide an electronic signature, acknowledging said disclaimer,...
3
votes
1answer
27 views

Automatic client executable updating

Scenario I am currently developing an application which should automatically update (if applicable) every time it is executed. The update would involve replacing the main.exe and any assets in an ...
3
votes
5answers
149 views

Is it secure to ship public key with license file?

I've implemented a licensing client and server for our web-applications. Currently there is only one way for licensing an app, user should manually upload the license file using specified form and ...
0
votes
2answers
75 views

How unsecure would I assume old PHP code is? [closed]

We have several websites that are client facing at a very large company. These websites do gather client information. They were written 6-7 years ago, quite possibly using a PHP/mysql code generator....
3
votes
3answers
164 views

Is random URL token secure enough for file attachments and other user content? [duplicate]

Lets say we have a hypothetical system where there are various files are added by users and are sensitive, e.g. lets say an attachment to a private message. It's not that easy to verify access rights ...
13
votes
6answers
3k views

Is it a security issue to allow nearly identical email addresses when registering?

Say you have a website where it is possible to create accounts for all of the following email addresses: 'test@test.com' 'test@test.com ' 'test@test.com;' 'test@test.com;test2@test.com' Should this ...
3
votes
6answers
682 views

Can hackers find secret tokens passed to HTTP GET requests?

I have some code like this in index.php: if(isset($_GET['something'])){ //do something } Can hackers find this and request index.php?something, or is this sufficient for security?
4
votes
2answers
129 views

Can I prevent all employees from accessing customer data without being logged (especially IT)

I am hosting a web application and SQL server database on Azure and I would like to ensure that no individual at the company can access customer data without the access being logged. It seems that ...
4
votes
4answers
547 views

What to do when asked for a weak password

The guys who made the security for my country's state bank are completely nuts in all senses. Their internet banking password must be between 8 and 10 characters, and contain only letters and digits. ...
55
votes
7answers
7k views

Are there security advantages gained from forcing a website to be available from just one tab at a time?

I just found that a website of one Polish bank forces the users to open it in one browser tab only. You cannot for example check your transfer history while looking for an account number that you ...
24
votes
1answer
1k views

HTTP HEAD and its security versus operational uses

Most security advice I see recommends turning off HTTP Methods like TRACE, OPTIONS, HEAD etc. So now I have turned off most of these options on my web server and leaving only GET and POST options that ...
11
votes
4answers
6k views

User name enumeration?

From what I understand it is bad security practice to display informative failed login messages like: The email you entered does not exist Instead of Incorrect email/password combination ...
6
votes
3answers
952 views

How can I prevent data scraping on my website? [duplicate]

How can I prevent client software scraping data from my website? Some examples of my URLs are: http://example.com/products.php?q=1 http://example.com/products.php?q=2 http://example.com/products....
8
votes
5answers
3k views

What are potential security risks when using an insecure wireless connection?

If someone is using an insecure wireless connection (for example a hot spot in a coffee shop) does it pose a threat even if the person is using a secure application layer protocol? What I mean by ...
1
vote
1answer
146 views

Saving encrypted username password in session

I have Node.js server which serves an app. In that app you could be asked to login. The login credentials would be authenticated against LDAP. That server could request/post data from other servers ...
0
votes
2answers
157 views

Our users get a trojan horse alert on our site, but we don't. What do we do?

A user of our website got a trojan horse alert when she tried to get to our website. But myself and some other friends got no alert whatsoever and can go on the website and download files without ...
11
votes
3answers
5k 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 ...
1
vote
1answer
65 views

Forcing response headers

I'm testing a particular vulnerability box since yesterday and I came with one rather strange problem that I didn't expect. Lets say a vulnerable web-application offer image file upload. The image ...
8
votes
1answer
2k views

Burpsuite accidental defacement, should I be concerned?

I was spidering a website with Burpsuite and the automated Form Submission caused me to unknowingly deface the main page with "555-555-0199@example.com". It took me a decent amount of time to notice ...
7
votes
3answers
2k views

Can we drop XP from HTTPS support? If not, when? [closed]

XP support was dropped by MS on April 8 2014, almost two years ago, but there are still many people who use XP for internet surfing. Also, there are still many sites like Google or Facebook who offer ...
3
votes
3answers
169 views

Does this concept attack work to harvest credentials and 2FA using offline fake site?

My concept is this: Client connects to Malicious\Eviltwin AP Client connects to www.facebook.com but this one is a fake offline site by the fake dns server Client enters user and password ---> ...
1
vote
2answers
98 views

Does two factor authentication increase the attack surface?

Would adding two factor authentication to an application increase the attack surface of this application? I think it would, since by adding complexity the likelihood of a vulnerability in my ...
0
votes
1answer
69 views

Mobile apps social Oauth

I need to develop iOS and Android apps that should have to communicate with a server throught RESTfull API. Also I need to register and authorize user throught popular social networks like Facebook, ...
1
vote
2answers
115 views

Keeping user files secure while allowing a web-application to use the files

Short background I am currently in the process of designing a web-application where the user uploads some files to the server and then asks the server to do some calculations based on these files (...
32
votes
3answers
32k views

How to exploit HTTP Methods

Many security scanners like nikto, nessus, nmap, and w3af sometimes show that certain HTTP Methods like HEAD, GET, POST, PUT, DELETE, TRACE, OPTIONS, CONNECT, etc are vulnerable to attack. What do ...
5
votes
1answer
159 views

Detect man-in-the-middle on server side for HTTPS

Background: We have a site which works over HTTPS (HTTP not supported, we use HSTS). It's deployed in 3rd party cloud, which restricts our control and log abilities over server hardware. We cannot ...
3
votes
1answer
85 views

Sending a token with a request from one app to another

Say I have an application written in some language and framework (Python + flask, for instance), and have a great deal of the functionality requiring login, and authentication via JWT. Now I want to ...
0
votes
1answer
45 views

Block web content authoring from internet

In implementations where one uses content management, which is the better method to secure the web content authoring pages from access from internet? Configuring httpd.conf to restrict the content ...
1
vote
3answers
158 views

Why limit internet access while connected to a remote desktop?

I work in the nuclear industry, and sometimes we have some strange (but understandable) standards for information security. I have encountered one which seems odd and would like to know the potential ...
3
votes
2answers
107 views

Use password to calculate checksum for API requests

I was wondering if it would be an effective way of securing an API by requiring all requests to be checksummed, salted with the users password (or a hashed version)? With securing I mean making it "...
2
votes
2answers
51 views

If authenticated user tries to access a restricted resource

If a user with authorization to access Resource A, tries to access Resource B (by trying to follow a URL), which of the following is a better course? Take them to a standard Access Denied Page, with ...
4
votes
1answer
258 views

Pentesting Web Server for Remote File Inclusion

For educational purposes, I am in the process of pentesting a web server of mine(running on Windows) where there is a Remote File Inclusion vulnerability. I can already get simple things like command ...