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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1answer
187 views

Have I done enough not be compromised through image uploading

I know that you can never be sure that you have done enough to be secure, and I also know that file uploading is hard to make correct. Before asking this question I read some of the related posts here ...
0
votes
0answers
38 views

Storing hashed or encrypted password in session? [duplicate]

I need users to be able to encrypt and decrypt without entering their passwords every time. One way is to store the hashed password in session, and use it for encryption and decryption. Problem with ...
0
votes
1answer
80 views

Credit card data [closed]

I want to scan files for is there any credit card information.I searched for find good product. I used this application card recon Is there any similar product like that for find credit data ...
9
votes
4answers
271 views

What are the main security considerations that must be taken into account if you intend on creating a (localised) whistleblower website?

Also: Is it something that can be achieved with limited funds? I ask because I am intrigued by the obstacles that are in place.
0
votes
1answer
40 views

How could a comments plugin be securely loaded from domains people are already logged into?

The fundamental idea is to load a blog comments plugin (like Disqus) from a domain someone is already logged into to save users time and increase engagement. I like the facebook comments plugin ...
0
votes
1answer
154 views

False Positives- Server side protection against XSS

I read about XSS attacks and its prevention mechanism on server-side. It seems only protection is to sanitize the input by escaping special characters on server side (Using some PHP functions such as ...
1
vote
0answers
77 views

Checklist for securing JBoss

Is there a security checklist for auditing JBoss configuration files ? CIS and DISA provides security checklist only for Tomcat and Apache server. Is there any other ressources ?
0
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1answer
54 views

Security design behind google's application specific password [duplicate]

When using Google's two-step verification with services that can't use it, such as mail clients on smartphones and desktops, the solution is to create application-specific passwords for those ...
4
votes
2answers
489 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 ...
0
votes
1answer
272 views

Potential problem in public Maven repository

Problem This morning I found that, what I thought was one of our proprietary artifacts, had been published to a public repository: http://repo.grails.org/grails/simple/codehaus-cache/com/ If you ...
0
votes
1answer
56 views

Is it reasonable to use a security proxy when integrating two web applications?

Background: We're in the process of integrating two web applications. The other one, application A, is a publicly accessible Internet service, which is provided by a third party and which offers Web ...
3
votes
2answers
218 views

Risks for a new type of website login feature

What would be a security risk for a website feature that allows you to connect to your account without typing your password, given that you allowed such a login for the next say 10 seconds from a ...
14
votes
4answers
3k views

How to implement non-password authentication in a web site

In an answer to this question about pw reset, D.W. says: Lastly, consider non-password authentication. Passwords have many problems as an authentication mechanism, and you might consider other ...
1
vote
2answers
63 views

Preventing interaction among web application on a shared hosting account

I have multiple web application installed in separeted directories in a shared hosting account. My worry is if one application get hacked, attacker can use it to attack other applications too. So, My ...
0
votes
2answers
221 views

Is SSL a mitigating factor for HTTPonly not set on cookies?

I have a few sites that are using HTTPS (no mixed mode HTTPS/HTTP). The cookies do not have a HTTPOnly flag set. They do pass along session IDs. Also some of the sites do not have a "Secure"flag set ...
17
votes
8answers
11k views

Why do people still use/recommend MD5 if it is cracked since 1996?

It's still commonly recommended way of hashing passwords, even if it's insecurity had been proven in 1996 Therefore we suggest that in the future MD5 should no longer be implemented in ...
2
votes
1answer
328 views

Tomcat IP restriction vs Two Legged OAuth

We have a server side API that is completely REST based. We are coding to secure them with two legged oAuth type authentication. We are planning to iPhone and Android apps in the future, but for now, ...
1
vote
2answers
81 views

Any vulnerabilities in allowing users to choose path of S3 file?

I'm building a web app that uses S3. In some of our operations, we're creating a file on S3 with a path that's directly dependent on user input, so an attacker might cause a file to be created on S3 ...
0
votes
1answer
104 views

Starting out, where should I be looking for vulns? Big bounty sites vs. smaller projects? [closed]

I'm an amateur web application security enthusiast with what I would say is an intermediate level of knowledge at this point. I'm interested in finding full time work as a web app pen tester. Up ...
0
votes
1answer
169 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 ...
1
vote
1answer
80 views

What makes it difficult for Facebook to implement restriction/ACL for accessing uploaded photo? [closed]

Facebook claims to allow restrict sharing to friends, certain network, or even custom when I upload photos. But it appears that this security is only in effect for the page where the photo is ...
19
votes
2answers
1k views

Do Simple Linux Servers Really Need a Non-Root User For Security Reasons?

Playing devil's advocate, Let's assume I purchase a Linux server from a hosting provider. I am given a password for the root user and am told I may login using SSH. The only purpose this server has ...
0
votes
1answer
51 views

Security implications of putting virtual hosts source code in /var/www/[domain]

A friend pointed out that putting virtual hosts as sub folders of the default /var/www was a bad idea. (linux example path; this applies to all OS) I see that it's possible to reach the virtual hosts ...
0
votes
2answers
163 views

Is it possible to modify a support .js file in a web application by injection?

Let's say there is a web application needing a JavaScript support file .js to be loaded in the head of the html document. <!DOCTYPE html> <html> <head> <meta ...
1
vote
1answer
499 views

Trying to reproduce a file upload compromise on Joomla

After telling my workmates and boss that we had a very critical lack of security controls, finally we got compromised! They had a Joomla 1.5 which was exploited using a file upload vulnerability. WSO ...
2
votes
2answers
262 views

API Security Testing Methodologies

I have been encountering more and more clients needing their API (usually REST) endpoints tested for vulnerabilities and wanted to reach out to see if anyone has some recommendations beyond what I ...
0
votes
0answers
25 views

Deliberately-Vulnerable webapp for security education [duplicate]

A year or so ago I was playing around with an apache webapp I found that was designed for web exploitation practice. It was simple to use, I just downloaded the file, unzipped it, and placed it in the ...
1
vote
2answers
128 views

Is Temporary XSS a Problem?

I use a site on a regular basis so I wanted to make sure it was secure. One of the things I checked was that when I changed my first name to <img src="http://blah.blah/blah/blah.notanextension" ...
0
votes
1answer
128 views

Removing Unnecessary Services & Packages in a MySQL Ubuntu 12.04 Server [closed]

As part of hardening a MySQL 5.6 server running on Ubuntu 12.04 LTS, unnecessary services and packages will have to be removed. For a server that is serving only as a MySQL server, what services and ...
58
votes
10answers
17k views

Bad practice to have a “god” password?

Is it bad security practice to have a password that will allow you to access any user account on a website for support purposes? The password would be stored in a secure manner and would be super ...
7
votes
4answers
1k views

Escaping JavaScript constants

how can untrusted values be included in a html-page as javascript string constants? Although the case i am asking uses JSF and Rails, I think this is a general problem independent of the server side ...
1
vote
3answers
101 views

Make firewall management public?

A friend of mine installed a new firewall software at his company. Sometimes he works from home, and also has to maintain the firewall. The firewall management software is a web site. My friend made ...
1
vote
1answer
312 views

RESTful API URLs and Denial Of Service attacks

I overheard the following statement today: We shouldn't use /api (e.g. in a RESTful URL like /api/v1/users/get) in our RESTful URLs anymore because it makes it easier for people to Denial Of ...
3
votes
1answer
448 views

Does it make sense to implement OAuth when no 3rd party is involved

I own a REST API at server side and a distinct web application that would call those APIs. I want to secure my APIs calls. After some reading, I want to implement the OAuth 1.0a mechanism at server ...
1
vote
3answers
65 views

Why pull upgrade from production server rather pushing them from development server?

I am reading a book on security which suggest that if you have both development and production server and if you make some change, you should pull them from production server rather pushing them from ...
6
votes
4answers
3k views

Ensure web service only accessed by authorized applications

Preface My mobile app allows users to create accounts on my service. In addition to being able to log in with external authentication providers, like Facebook, I want to give the user the option to ...
20
votes
7answers
1k 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 ...
2
votes
1answer
92 views

What is this hardened computer called? [closed]

After undergoing a security audit, it was suggested that a hardened computer be placed in the DMZ to run firewall software. What is this hardened computer called?
23
votes
5answers
4k views

Could mint.com be more secure, and if so, how?

After reading a bit about mint.com on the money stack exchange, I wanted to give it a try. But frankly, it scares me a little bit. The site has a bunch of links explaining how they're so secure. I ...
6
votes
1answer
87 views

Design a webapp that uses OAuth, but with tokens that can't be used by the operator?

I'd like to make a webapp that would allow users to OAuth with Stack Exchange, so that they can perform actions like voting through the app. I'm stuck at one point, though: I know how to perform ...
9
votes
4answers
487 views

Does my UI need to be secure if my API is?

I'm working on a project that is creating two new, separate web modules (possibly even on different servers) to support a new web application, with one serving up a static JS-based UI and the other ...
0
votes
1answer
175 views

Cookie+session based CSRF protection

Consider the following scenario: 1. When user visits a webapp, server:     a) initialize the session;     b) generates CSRF token;     c) ...
3
votes
3answers
274 views

Advantages of multiple valid CSRF tokens

As far as I understand there are two approaches to perform CSRF protection: 1) CSRF token per session - the token is generated once per session. This is the easiest way; 2) CSRF token per request - ...
4
votes
8answers
883 views

Is this a good way to store passwords in a Web Application?

I've been tasked with finding a better way to store passwords and came up with this Algorithm. My understanding of Crypto is not strong enough but can someone check this please? Inputs: Username ...
11
votes
4answers
1k views

Preventing reverse-engineering of client application

I have a web service which is used by a Flash client. Both the service and the Flash client is produced by me (read: my company). The Flash client communicates with the server over HTTPS. One of the ...
10
votes
8answers
2k views

What chars should I not allow in passwords?

I am planning to develop a website that require that the users register a username and a password. When I let the user choose a password, what chars should I allow the users to have in the password? ...
1
vote
2answers
696 views

POST over HTTPS “secure enough” for sensitive data?

I'm wondering if to prevent the possibility of a compromised SSL certificate leading to the potential for sensitive information disclosure if it might be prudent to further encrypt data being passed ...
21
votes
1answer
2k views

What cookie attacks are possible between computers in related DNS domains (*.example.com)?

Here, several servers in the same DNS domain emit cookies under a variety of settings (scope, HTTPS, Secure) and another host emits a cookie with the same value. Example Suppose a user has the ...
2
votes
3answers
214 views

How can I prevent my database from being compromised if my CakePHP app is compromised?

I have an app server hosting a CakePHP app and a database server hosting the databases. The servers are physically separate. The databases contain encrypted sensitive information. The encryption keys ...
2
votes
3answers
402 views

iptables: plaintext password protection

I'd like to find a way to block or restrict my access to the web-pages where my password is sent as a plaintext on the internet. Let's assume if I have the same password for all web-pages, is it ...