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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2answers
96 views

security concern of user submitted bash command

Recently I am building a web service that user input will be used to run a bash command on the server side. What are the security problem I need to take care? Right now I find one that user could ...
1
vote
2answers
357 views

XSS when some keywords are prevented on the server side

When I scan website with burp suite pro, I encountered a XSS. This XSS is <a b=c> When Burp suite test other payloads that contain keywords like script, alert, onerror, this parameters ...
1
vote
3answers
127 views

Trouble understand login vulnerabilities

I'm testing my own web page with the following vulnerabilities. #1: Form escapes ' to \' So if a user tries to enter the following information: username: 'or'1=1 password: m username will ...
3
votes
1answer
192 views

At what criteria should an unpatched machine be considered hacked? [closed]

Since every machine connected to the Internet requires security patches, there is a window of time in which those updates have been released and those machines haven't yet been patched. It is ...
1
vote
1answer
83 views

What is the safest way to encrypt a password that can be decrypted at a later time?

In a web app I'm building, I need to use Apple's AutoIngestion tool for iTunes Connect. In this tool it seems the only way to use it is to send a password in plain text. What would be the best ...
-1
votes
1answer
57 views

Custom TLS in Browser [duplicate]

We are developing a JSF web application that has a main requirement of using our own TLS implementation (custom algorithm suites). The clients will connect via a browser. Is there any way (customising ...
1
vote
1answer
124 views

User Authentication for a public website in 2015 [closed]

I am creating a new website for online shopping in .net and was wondering if i have another option beside Forms authentication to validate the users in a safe and secure way (this has been around for ...
0
votes
1answer
75 views

How does a reverse proxy change the security posture of a web server residing in the DMZ? [closed]

How does the reverse proxy change internal and external security posture with a reverse proxy compared to not having a reverse proxy? For example, you have a publicly accessible iis server, what is ...
1
vote
2answers
492 views

How should developers handle Form POST variables that conflict with route variables?

In ASP.NET MVC, when I perform a HTTP post to /controller/action/UserID ... and have a corresponding route /controller/action/{UserID} ... and if I do a Form POST, the POSTed data UserID ...
4
votes
4answers
427 views

How strong is visualCaptcha?

I like the user interaction of visualCaptcha, but I'm questioning the amount of protection it gives: Since there are only 5 images (by default), isn't is simply a matter of 1 in 5 to get the right ...
19
votes
7answers
3k views

What are some good website security scanning solutions?

What are some good web-based website security scanning solutions? I'm not too concerned if they are web-based solutions, or software that can be run locally. Generally, I'm looking for something we ...
15
votes
6answers
6k views

Preventing information disclosure from browser back button/history?

I have sensitive data that will be hosted on a website, and I would like to prevent the data from being exposed in this scenario: The primary user logs off the application, but does not close the ...
1
vote
1answer
116 views

Detecting web app attacks by parsing log files [duplicate]

Following up on this question as the answers are now 5 years old: Can I detect web app attacks by viewing my Apache log file? My boss has tasked me with analyzing our access.log and error.log files ...
2
votes
3answers
145 views

Is it okay to only use username/password to secure an admin page for moderating a website?

Is there a standard practice to securing an admin page for an application written in angular and nodejs or just in general? The admin page would approve/ban users and moderate comments. Should it be ...
2
votes
4answers
202 views

What would you call an attack where authenticated user modifies other users information on web app?

Authenticated user on web app, using other people's id to update or change their information. So basically the web app is not checking for person who is logged in against the person who he/she is ...
0
votes
1answer
50 views

Feasibility of creating an in-memory web app (that runs from a CD-rom on a web server) for sharing self-destructing messages

This question is about a hypothetical in-memory web application that is used for exchanging encrypted messages that passively self-destruct in X amount of minutes. Here the messages would be stored ...
0
votes
0answers
39 views

Firewall requirements for SaaS service providers

I have not had much success compiling a workable overview on the topic of firewalls and application service providers, despite making a rather extensive contribution to Google's workload this month. ...
0
votes
1answer
49 views

Making a Judgement on a User's IP Usage

We have a click exchange-type web application that allows users to receive stats boosts within a game. Stats boosts are based off unique IP addresses which poses a problem for users who use proxies or ...
0
votes
2answers
177 views

Source code disclosure vulnerability

I am a bit confused about the discussion here about hiding javascript source code. Let's say if I browse to a url like this: http://www.example.com/site/somejs.js and then what I see is something like ...
102
votes
8answers
43k views

Is BASIC-Auth secure if done over HTTPS?

I'm making a REST-API and it's straight forward to do BASIC auth login. Then let HTTPS secure the connection so the password is protected when the api is used. Can this be considered secure?
13
votes
6answers
36k views

Testing for HTTP TRACE method

How can I test for HTTP TRACE on my web-server? I need to train a Tester how to verify that the HTTP TRACE method is disabled. Ideally I need a script to paste into Firebug to initiate a https ...
6
votes
3answers
553 views

XSS scripts in console

Well i need to know is it possible to enter xss script through console of developer's tools(e.g. : firebug of firefox)? Is this a proper way ?
1
vote
2answers
129 views

ruby on rails pentesting web applications

I am currently testing a RoR web application, but I am honestly at a bit of a loss, I have never gone up against a RoR application before and I was wondering if there were any specific tools I could ...
3
votes
1answer
73 views

What methods can be used to prevent the browser (IE11 specifically) from storing credentials / autocomplete

Going through Pen Test and it was asked of us to disable auto complete in our CC payment fields. We tried adding autocomplete=off and also tried false on the input filed. A ny suggestions to ...
9
votes
4answers
617 views

Worthwhile from security standpoint to limit database server user for ASP.NET website to only EXECUTE on stored procedures?

I know that obviously we must avoid sql injection attacks through user input validation and parametrized queries. There's already a firewall in place on the database server to limit remote ...
17
votes
2answers
3k views

JavaScript Injection using Man in the Middle Attack

Suppose I am connected to a wifi-hotspot hosted by a malicious attacker. Further, suppose that I am accessing a login page of an fictitious email site tmail.com over insecure HTTP connection. My ...
2
votes
1answer
105 views

Preventing XXE Injection

I've stumbled upon an exploit method which I haven't really had time to investigate before. XML eXternal Entity is said to be susceptible of a server-side type of injection. I can specify a Document ...
4
votes
3answers
360 views

Do WebGoat style XSS attacks still work?

I am going through the WebGoat exercises, to refresh my knowledge of XSS attacks. Specifically, I am doing the Stage 1 XSS exercise. This exercise has a form that deliberately does not sanitize ...
19
votes
4answers
948 views

Should I be concerned when a “Forgot Password?” tool sends my password in plaintext?

Some sites I have been a member of in the past don't go through the normal "Forgot Password?" process. Instead of e-mailing me a unique password reset link or something of the like, I have received ...
1
vote
1answer
92 views

OTP for syncing mobile device

Scenario: a web app with two-factor authentication using username/password and hardware OTP. Once logged into the app, one of the app modules should be used in a tablet or any mobile device without a ...
4
votes
2answers
50 views

Is hashing schema information for client when generating SQL queries more secure?

I'm planning to implement a web system wherein APIs and presentation for CRUD in data tables are automatically generated, like that in phpMyAdmin. How I plan to implement this is to construct SQL ...
4
votes
2answers
122 views

Shop saves credit card data from guest orders

A web shop allows customers to order as guest or to create an account. I ordered as guest, entered my email address and the shipping address, and payed per credit card (I had to enter the security ...
2
votes
1answer
74 views

Can you steal session cookie with BREACH attack?

Most of the discussions about the BREACH vulnerability are around stealing session-based CSRF tokens. But if you can steal a session-based token, could you also steal the session token itself? ...
1
vote
1answer
38 views

add another layer of protection on top of oauth 2

My Rest API is protected using Oauth2. My main client is a native app. it's working great but there are certain calls to the API that i want to make sure that are performed from my client - meaning ...
6
votes
2answers
1k views

Using skype for an attack

I am curious about something; let's say someone randomly added me to Skype and tried to initiate a chat with me and I want to know more about them but I am worried if they can do some damage. My ...
7
votes
3answers
660 views

Finding security consultant for doing in-depth code review?

We have a PHP application that we know has poor coding practices (because the developers did not have a good understanding of PHP / programming fundamentals). This could lead to the scenario where we ...
5
votes
2answers
591 views

Has there been any documented cases where hackers have hijacked the phone number to a business?

Has there been any cases where hackers have taken over the phone number to a business, by creating a phone number in the same area code, setting up a virtual PBX / Asterisk system, routing all calls ...
1
vote
1answer
111 views

mail.google.com identity doesn't match

I got This website doesn't supply identity information in firefox while browsing gmail.com, I understand that would be because I understand it is required when it needs to load content using ...
1
vote
1answer
362 views

Failed to connect to netcat reverse shell

I am doing an exercise of PentesterLab, I've got a webshell called 1.pdf, and it can be included in index.php as a PHP file. It contains code like this: %PDF-1.4 <?php echo system($_GET["cmd"]); ...
2
votes
1answer
70 views

Is TLS enough to prevent eavesdropping? [duplicate]

Is it enough to use only SSL/TLS for client-server application with authentication, registration and data transmission (like chat)? If it is not what I also need to use?
2
votes
1answer
42 views

Avoid brute-force enumeration of customers in a SaaS application

I'm involved in the development of a SaaS application. We host the application for different customers. A customer is a company. Each customer gets access to their hosted instance of the application ...
3
votes
2answers
80 views

Issues with using TLS Session Id for Web App Session?

Apache Tomcat has the ability to use the TLS Session ID instead of a session cookie or JSESSIONID in the querystring. My site is HTTPS Everywhere. This seems useful in that I don't have to worry ...
1
vote
2answers
82 views

Circumventing disadvantage of IP-based account lockout

So we're trying to prevent brute-force attacks on our web server login page--currently we just do IP-based locking if x failed attempts from IP address Y occur over z time period. After a security ...
4
votes
3answers
174 views

PHP | Security for allowing user uploads

My Sittuation: I am creating a web application with PHP which allows users to scan their files for viruses. It allows the user to upload their files via the html "file" input type or via a URL. I ...
3
votes
4answers
1k views

Is it secure to have source code for website public? [duplicate]

I am working on a website and would like to have it under revision control. I have used git for earlier projects before and I like it. This project though is a website written in Django. I am totally ...
2
votes
1answer
106 views

Basic nginx securing / restricted access [closed]

I run a private virtual server on Ubuntu 14.04 and I use Nginx as my http server and/or reverse proxy. I run multiple webapps on this server, most of them are fresh open source projects. UPDATE : ...
0
votes
1answer
46 views

rate limiting and access filter for web application

I had a requirement of rate limiting and dynamically access controlling access to web application dynamically I want to be able to rate limit access turned on / off dynamically black/white list ...
2
votes
1answer
58 views

Freelance web app tester law on breach after scan [closed]

If I was to do a web app test on a companies site and I didn't spot something and the company was breached via the app I tested what come back could I possibly have ? How could I protect myself ...
6
votes
1answer
173 views

Secure forgot password page: Is a server-stateless implementation viable?

This is yet another "How is a forgot my password page done right" question. However, it explicitly addresses two implementation options that I have come across recently. The common approaches [1,2] ...
3
votes
3answers
305 views

External cross domain include script

One of my web application underwent a vulnerability assessment recently, and one of the findings is about cross domain include script. Our web app uses addthis_widget.js from AddThis to bookmark ...