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

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1answer
204 views

Should I trust zxcvbn with my password?

I want to measure current and future password entropy with the zxcvbn formula. Is there any way to test and detect if the input on this website is truly confidential? EDIT: 1. I found an ...
1
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1answer
312 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: ...
2
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0answers
77 views

Suspicious web-application requests containing encoded JavaScript function(?)

I've been seeing some odd traffic in the logs for a web-application (Apache) that I'm wondering about, and I'm hoping that someone here has seen this before. The raw requests were variations of: ...
0
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0answers
60 views

is Form Authentication more secure than using the session authentication?

Recently I have read about the form authentication of Asp.Net but I can discern no differences in the term of security between it and the session authentication. For Example if somebody hacked my ...
1
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1answer
83 views

Multiple Bank Accounts on one payment gateway or merchant account

I'm looking to use PCI compliant payment gateways such as Authorize.net or Spreedly.com in my website. However in my particular case (hotel, tour, events reservations), we will serve as an ...
0
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1answer
99 views

Can servers store the mac address of the computer on the server side to prevent session hijacking?

Can servers store the mac address computer on the server side to prevent session hijacking? For example, if in the server side, the servers store the mac address and the session id as a pair and ...
1
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1answer
129 views

Is it a security risk to have 'Control + j' functionality enabled in a production instance of PeopleSoft?

The control + j feature within PeopleSoft outputs a list of potentially interesting data for a potential attacker. The feature is generally used to aid in debugging. Here is a the [censored] output ...
0
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1answer
52 views

What is a good risk assessment for different types of online file references?

Personally I'm a big fan of hosting everything myself, just because of the privacy aspect. For that reason I try to use external files as least as possible. Nevertheless, I'm wondering if it is a ...
1
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2answers
102 views

Saving an Id on a cookie. Security point of view?

I'm developing an ASP.NET MVC 5 website, which a user can select some filters, based on those fillers the server process a result, and the user can make a order and pay for it. In my Order table i ...
0
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2answers
82 views

Do I require a SSL certificate for using Google Login?

I am working on a new site, and in order to avoid security hassles, I'm planning to provide Google and Facebook login to my website. Do I still need a SSL certificate or is it not necessary? ...
2
votes
2answers
115 views

Website being open inside 3d party domain/frame, is this a possible attack?

I recently had a huge increase in visits of a website I manage. On deeper check I discovered I had a new referral. When I opened the website I was quite surprised. It's not a just a referral, ...
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2answers
205 views

Storing encryption key in a cookie?

I have a website issue that I am addressing by storing an encryption key in a cookie. I want to describe my issue and my solution, and see if someone smarter about such things than I thinks this is a ...
0
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0answers
68 views

Bypassing Change Name Uploader

I have read all of the questions available on SE about bypassing the change name uploader. Consider an uploader which changes the file name each time you try to upload a file. The only allowed formats ...
1
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1answer
139 views

Are there any security disadvantages of using production SSL certificate in non-prod environments?

My client has a wildcard certificate *.thierdomain.com that they are using for half a dozen of production web sites. For each of theses sites there are duplicates in several environments, dev, qa, ...
8
votes
2answers
2k views

Antivirus for scanning anonymous file uploads

Since I have no experience with AV solutions on Unix-like environments, I would need help with suggestions on something that can be suitable for scanning files that are uploaded by anonymous users ...
0
votes
1answer
271 views

Is this a website hacking attempt, and if so, what is it trying to achieve?

I've recently seen a few strange requests made on our site, I'm wondering what they might be. Normally we get sql injection attempts like this: ...
2
votes
3answers
390 views

GET and POST request vulnerable to CSRF attack?

Are both GET and POST request vulnerable to CSRF? Should we use PUT instead?
4
votes
3answers
477 views

Is it necessary to test all input parameters of a web application when testing its security?

We know that testing input parameters for lack of validation is one part of a black box web vulnerability assessment but, is it necessary to test ALL input parameters (parameters, cookies, HTTP ...
9
votes
3answers
1k views

How secure are sha256 + salt hashes for password storage [duplicate]

I started reading about password hashing recently on multiple sites like this page on crackstation and others, and for what I have understood, I should avoid using hashing algorithms like md5 and sha1 ...
3
votes
3answers
140 views

Is CSP enough to prevent XSS attacks [duplicate]

Assuming that users are using modern browsers, is implementing a strict CSP policy enough to prevent all XSS attacks? I'm working on a Backbone app, and am wondering if I still need to be escape user ...
3
votes
3answers
199 views

Can a browser JavaScript console ever be an issue?

I'm sure most of you are familiar with the JavaScript-based game Candy Box. As you probably know, one can cheat this game's candy system by sending commands to the console. For instance, if you ...
2
votes
2answers
143 views

Securing user's data against an attacker that may gain server root

I'm designing a web application that is going to handle very sensitive data, storing it on behalf of its users. A kind of online safe, if you will. A user's secure data should only be visible to her, ...
1
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1answer
96 views

Concerns discussing 'illegal' activities in a job interview [closed]

Before I begin, I say 'illegal' because I guess the law is somewhat sketchy around the topic and that topic is XSS research. Apparently people have been taken to court over it and UK law does have a ...
0
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1answer
535 views

CSRF Guard: Injects token in POST Request?

I have implemented CSRF Guard into my web application. It's working fine for GET requests (with AJAX and without AJAX) however for POST request token is not getting injected into the request that's ...
2
votes
1answer
153 views

Exploiting mailto links

Supposing that the user has the power to include any content after mailto: snippet, are there any possible security vulnerabilities? Example: The user says their email address is foo. The link on ...
0
votes
1answer
48 views

How to manage a custom session in a webapp?

I was reading through the OWASP Cheat Sheet and something mentioned in the "Weak Authentication and Session Management" row did not make sense to me. It is recommended in the Design Column, that ...
1
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2answers
108 views

two factor authentication without TLS/SSL

It seems silly to ask about using two-factor authentication without TLS/SSL but, I have a vendor that is using public IP without TLS and asking for login creds. Would the login be more secure if ...
17
votes
3answers
3k views

What is the point of the same-domain rule for xmlhttprequest when script tags/JSONP can cross domains?

I get that I don't want a page loaded from stackoverflow.com to be able to request gmail.com on my behalf and read my email--but this seems to be simply a cookie issue. Since JSONP bypasses ...
121
votes
2answers
77k views

What is the difference between https://google.com and https://encrypted.google.com?

Is it there any difference between the encrypted Google search (at https://encrypted.google.com) and the ordinary HTTPS Google search (at https://google.com)? In terms of security what were the ...
1
vote
1answer
349 views

Security of IFTTT

IFTTT looks like a powerful service but I'm also highly sceptical of its security. Could somebody give me a brief rundown of how you think it works and what the security implications are please? I've ...
0
votes
0answers
40 views

Should I add signatures to the Netscaler Application Firewall for Exchange, Cognos, etc?

This link describes that I can use Cenzic, IBM AppScan, Qualsys, Trend Micro and Whitehat files to create an application filter for various products. I'm looking for filters that apply to commonly ...
3
votes
2answers
94 views

How do we verify identity before creating a new admin account?

We are designing the security for a B2B Saas service, the user and admin accounts are based on the customer's email addresses - typically our customers are small organisations without their own in ...
1
vote
1answer
432 views

XSS attack vector without forward slash?

is there an XSS attack vector that allows the inclusion of a external .js file without having to use forward slashes? let's say the path of the file is somewebsite.com/js/xss.js Is there a way to ...
2
votes
1answer
154 views

Safety of exposing an internal web application to the internet using a reverse proxy in the DMZ

I am creating a web application which needs to make direct connections to internal resources (e.g. database servers), but will also need to be accessed from the internet. The web app exposes web ...
3
votes
2answers
154 views

web security testing - vulnerability issue

I'm testing a website to find out vulnerabilities. Website is fully running on HTTPS only. While testing, I came to know that the pdf files can be downloaded by authorized users only. This ...
0
votes
1answer
2k views

Hydra gives wrong answers

Problem: Hydra keeps giving me incorrect passwords every time. I'm using brute-force via Hydra to guess the correct password on a certain website. First of all I used BurpSuite to intercept the page ...
-3
votes
1answer
104 views

Clarification on a website security [closed]

I am new to work on website handling and here are my questions. 1) How can I ensure that the pages accessing is secure enough for data transmission , sql injection and several other attacks. 2) How ...
5
votes
1answer
161 views

How do I securely embed an <img> tag using a user-given URL?

If I hypothetically wanted to allow users to use an avatar from an arbitrary URL like this: <img class="avatar" src="{user input}" /> There are many problems that I can think about: There ...
1
vote
1answer
642 views

How to exploit CRLF Injection?

I was running a few tests on a website when I came across this: Request: GET /accounts?intended_destination=internal_api%2Fcampaigns_dashboard%7Cshow&intended_params=format%3Dhtml HTTP/1.1 ...
0
votes
0answers
84 views

Social game authentication exploit

We're running a popular social game and we have a security problem that is growing more and more popular these days. We have the following product requirements: There should be no registration to ...
35
votes
8answers
3k views

If I include a Forgot Password service, then what's the point of using a password?

I've implemented a Forgot Password service in the following way: User goes to login page, clicks on "Forgot password?" User is presented with a form that asks for their email address. Email is sent ...
0
votes
1answer
88 views

sqlmap cannot find a dispatched vulnerability

I have a known sqli vulnerability that I'd like to try out with sqlmap in a web application; however, I don't believe sqlmap is able to figure this one out. Here's how the system works: Inject on a ...
7
votes
3answers
1k views

Dynamic application security testing tools

Is there a Dynamic application security testing (DAST) tool which can run over dynamic html /JavaScript ajax applications? An open source option would be ideal - or if that does not exist, then a ...
6
votes
1answer
344 views

What is the status of forced HTTPS everywhere (Strict transport security) via DNS? I only see the July 2010 draft

I'm trying to find the most recent RFC on HSTS in DNS (or rather said DNSSEC), but can only find this year old one in expired draft status Where can I find the most current guidance on STS in DNS? If ...
9
votes
4answers
23k views

Why Do we Need CAPTCHA? In what case we should use it?

In what case we should implement Captcha based security?. How accurate it is and if there exists any alternatives for Captcha based Security.
0
votes
3answers
109 views

Security benefits of hosting your CMS on localhost

If I host the CMS for my online website on localhost, will that mean that no one online can access it? If not, what is the most secure way to store your CMS?
13
votes
4answers
721 views

Custom socket server on the internet running as root

We are writing a custom socket server which runs on a high port. Until recently, it has been running behind a corporate firewall. Now, it has been decided that the server should be taken outside the ...
2
votes
3answers
132 views

Is it safe to generate a password for a user during sign up in a web application?

I'm working on updating a web application. It currently creates a password for a user during sign up. Is asking the user to create the password themselves safer than relying on a generated password?
1
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3answers
724 views

What is this for a Request?

i see the following request-string (see complete example below) with the same request_parameters, but differing values, hitting all our sites/wafs. the scheme is always the same: ...
0
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3answers
306 views

Sending database name in request headers

I am doing a project with an architecture of single server and multiple database. Every client request will contain a header containing database name that this request should connect. Is this a good ...