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

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-1
votes
2answers
163 views

ISP can detect DNS requests for a website. Can it do the same for websites embedded inside other websites ? [duplicate]

ISP can detect DNS requests for a web site, ie www.google.com . If I have a website ie www.mysite.com, and a webpage ie www.mysite.com/mypage.html and inside www.mysite.com/mypage.html , the web site ...
4
votes
2answers
245 views

What type of information should be shown to an end user for a logon session summary?

Google, Yahoo, Facebook and several banks have a session summary screen that lists a variety of information, but they aren't consistent in what is offered to the end user. e.g. Facebook offers a ...
1
vote
2answers
166 views

How secure are the GPG/PGP keyservers?

Importing a GPG key with a KeyID or fingerprint seems to rely on keyservers. Doesn't this invite man-in-the-middle attacks, in which someone would alter the keys to allow them to decrypt the data? ...
4
votes
5answers
2k views

Should I ignore the BEAST SSL exploit and continue to prefer AES?

Because of the BEAST exploit it seems everyone is saying you should stop using AES and instead use RC4. I am wondering if it wouldn't be better to continue using AES instead for the following ...
0
votes
1answer
79 views

Can I use a vpn to securely use prototypes of webapps from my phone or laptop?

I want to experiment with web development (using django) for both desktop and mobile. Server, phones and desktops could all be part of the same virtual private network. The VPN will be from some ...
1
vote
3answers
3k views

Is it possible to find who posted comment on my blogspot anonymously?

Problem Behind question : I own an blogspot site and people used to come and comment on my posts. In recent days I can see a spammer who comments anonymously on my every blog-posts. The comments were ...
41
votes
7answers
2k views

Why is application crash considered insecure?

If an application crashes, the program stops and there is nothing anyone can do about it, other than starting the program again. Crash is a bad behaviour in general and should be avoided, but why are ...
7
votes
2answers
222 views

What criteria should be used for manually reviewing / prioritizing failed logins?

I have a web application that is exposed to the Internet, and am interested in creating alerts, or prioritizing the manual review of failed logins to the web application. What thresholds, or ...
0
votes
1answer
167 views

Are cross site scripting attacks and sql injection a good topic for my thesis? [closed]

So I'm doing my undergraduate thesis, I would like to explore how cross site scripting sql injections occur. And for the purpose of the thesis I'd also like to create a fictional website that is ...
0
votes
1answer
174 views

How to secure and limit access to a web based application hosted on a local server

I have security concerns over a web based application. I want to limit access to the application only to a whitelisted IP addresses. Here are my thoughts on that: To host the application myself. The ...
2
votes
2answers
334 views

Unrestricted File Upload - Possible exploits

During a penetration test‎ (exercise) on a IIS web server + MYSQL DBMS, I have found an Unrestricted File Upload vulnerability for which I can upload a .php file. So I have tried to upload a php ...
2
votes
0answers
41 views

Arbitrary methods directly callable with Front Controller pattern

I'm working on converting an application that uses the traditional Page Controller pattern to start using the Front Controller pattern. One of the potential problems I'm thinking about is that with a ...
2
votes
3answers
501 views

Cross site scripting prevention removing &lt and &gt

I'm testing an application that only skips < and > symbols. The user input being validated is always inserted between html tags like <b>, <span>, <div>, etc. and never passed ...
1
vote
1answer
159 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 ...
-1
votes
3answers
145 views

Building a website with MAXIMUM website security [closed]

Well lets assume that someone is intending to build a website that will contain THOUSANDS of sensitive records such as credit cards etc. What would be a good checklist that would ensure that the ...
1
vote
1answer
88 views

How to properly configure OSSEC for Web Application Security ?

I would like to implement OSSEC as HIDS on my server, but by default OSSIC monitors a number of folders. I am going to deploy a web application on my server. So what should be my default OSSEC ...
15
votes
3answers
2k 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 ...
0
votes
1answer
59 views

How to pass an email address securely to a web application X embedded inside a web application Y

The scenario I'm trying to address is this: There is a web application Y which has an authenticated user. Inside Y, web application X is hosted (which belongs to a different domain). When X is ...
5
votes
3answers
348 views

Do I need to expire a session cookie when sessions are handled server-side?

The only data in the cookie is the session ID. There is no expiration timestamp set when creating it, a session is always evaluated server-side to see if it has expired. When logging out, the session ...
3
votes
1answer
96 views

Storing product keys on same server as shop?

Situation: An e-commerce system (specifically: PrestaShop) which is used to sell virtual products (specifically: product license keys). To accelerate order processing, a cronjob is supposed to be ...
78
votes
8answers
5k views

Do we need to logout of webapps?

A quick Google search doesn't reveal whether it is important to logout of webapps (online banking, Amazon, Facebook, etc.), or if I am safe just closing the tab or browser. I am sure I heard on some ...
8
votes
2answers
2k views

How to protect against clickjacking attack but allow legit iframes?

I'm aware of modern anti-clickjacking approaches, such as X-Frame-Options header or framekiller scripts. But all these tactics prevent content to be inside iframe. But what if there is a requirement ...
1
vote
4answers
432 views

Can Cross site scripting lead to database access?

I wanna know that weather a site having XSS vulnerability can lead the hacker to access database? I know that he can get the username and password from the cookie stored but can he completely access ...
0
votes
1answer
114 views

Encrypting content using same secret key as hash?

OK - I'm trying to design a system that can provide personalised/differentiated content at minimal expense to the server. One of the designs I'm currently exploring is where the request is somehow ...
2
votes
0answers
97 views

Automated tools to test Struts OGNL security vulnerabilities

I'm looking for a way to find Struts2 OGNL vulnerabilities (specifically http://www.cvedetails.com/cve/CVE-2013-4316/ and http://www.cvedetails.com/cve/CVE-2013-2251/. ) I know that attackers ...
-6
votes
1answer
106 views

How can I succesfully pentest site with two factor authentication? [closed]

I want to use a commercial, automated tool but it cannot login successfully because the website requires a two factor authentication process using SMS. For testing, the SMS message is sent to another ...
4
votes
3answers
140 views

Can “remember me” be done securely on an accountless website?

I have a website that lets users submit a form without having to create an account and log in. However, in order to keep users accountable for their submissions, the form requires them to provide ...
4
votes
1answer
178 views

What are the dangers with creating MySQL databases on the fly?

I am building a site where people set up small, private, social networks. For ease of administration and portability, I would like each network to be stored in a different MySQL database. I ...
10
votes
3answers
549 views

Is Gmail showing images by default a good idea for privacy?

Google have decided to show images in Gmail messages accessed via the web, iOS and Android by default: Instead of serving images directly from their original external host servers, Gmail will now ...
1
vote
3answers
473 views

How to expose a client's real IP address?

As a forum administrator, how can I find a client's real IP address? Are there any third party tools or weakness that expose the real IP address?
4
votes
5answers
8k views

Playing with Referrer Header

There are 2 sites: http://www.site1.com http://www.site2.com http://www.site1.com contains link to http://www.site2.com as <a href="http://www.site2.com/">link<a/> When user clicks ...
0
votes
1answer
124 views

Password algorithm to be integrated on a website

I have recently started a project to code a secure password protection algorithm to be used on both computers and mobile devices. As I have never done anything like it before, I am a bit unsure of ...
4
votes
2answers
232 views

XSS when <, > and " are escaped

I'm pentesting a website that has a reflected XSS, or at least a vector for a reflection, but the issue is the following : It escapes <, >, " to their URL entities (not &, ) or () You are ...
0
votes
3answers
198 views

How to retrieve the admin's password of a webapp?

I'm doing a pentesting example on a web app and I have dumped all the database. I have a table with the users in plaintext and the passwords hashed. I have to find the admin's password (I know that ...
20
votes
7answers
768 views

How can I protect a WordPress installation?

How do you go about protecting a default WordPress installation? What checklist do you use, best practices, tips and tricks, etc? Any recommendations on plugins, third-party tools are welcome.
7
votes
3answers
5k views

How can I find subdomains of a site?

One of the things I need to do from time to time is to find subdomains of a site for example. Starting with example.com sub1.example.com other.example.com another.example.com I'm ...
3
votes
2answers
153 views

What are the security benefits of reset all fields if captcha was failed?

Most of the sites will empty the password field when you fail the CAPTCHA, and often they reset all the fields as well. Is there any security benefit on doing this?
58
votes
6answers
6k views

Can anybody explain XSS?

I work programming Enterprise Java applications and do very little web development in 2002. I'm interested in security and like to read articles about it. However, I never fully understand how XSS ...
3
votes
1answer
417 views

If I send someone a google search results link, am I sending them any information about me?

When I do a google search, there's a lot of stuff in the URL for the results page: ...
2
votes
3answers
188 views

Can a mismatched server encoding on HTTP POST or GET result in a security issue?

It is possible for a server to parse HTTP POST and GET data with a fixed encoding or one that is dynamic with the client's response. Consider the situation where a client uses UTF7,32 or any other ...
0
votes
4answers
374 views

Disabled Unnecessary HTTP Methods

I'am doing a web based application and what I did is to disable some of the hTTP methods are not necessary for the website specifically: OPTIONS, HEAD and TRACE. I put this on the httpd.conf of my ...
0
votes
2answers
54 views

Denial of service when uploading a file [closed]

Is a DOS attack possible when uploading a big file. Lets say a website has a file upload control, and there is an attempt to upload a file of 1 GB size. If the connection remains open for a long ...
-1
votes
1answer
50 views

Network and data security for small online businesses? [closed]

What is the most efficient way of protecting small online business from outside threats. Everything too much expensive is not a solution. I've been looking for good web application firewall and at ...
1
vote
3answers
446 views

Purpose of using base64 encoded urls

I have come across a website, freshbooks.com, which uses base64 encoded urls for all purposes, ranging from POSTing sensitive data to a URI or just viewing some resource. For instance, a url to view ...
0
votes
1answer
97 views

File-structure when using token

I'm using a form-token to secure the validation process of my php-file. Basically the structure of the php-file looks like this: if ($_POST) {//form has been submitted? if (validateFormToken) { ...
3
votes
1answer
285 views

Why do major sites (eBay, Github) not ask for a password when I attempt to change email addresses?

When users change their email addresses within a web application's user account, I see the following problem: An attacker (who has access to your session) could change your email address to a new one ...
1
vote
1answer
251 views

Security implications of adding all domains to CORS (i.e. Access-Control-Allow-Origin: *) [duplicate]

I am curious of what all the security implications are if I set the following two HTTP response CORS headers; Access-Control-Allow-Origin: * Access-Control-Allow-Credentials: false The only ...
2
votes
1answer
116 views

Submit form with token

I have a token that I want to use to prevent direct access of some php-files. Some of these php-files are loaded via AJAX. The token is used with a session to secure form submission AND to prevent ...
0
votes
1answer
467 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 ...