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

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2
votes
1answer
156 views

Is this a bot fishing for security vulnerabilities on my site?

I am running a webpage for my family with a feature to track users and guests. Since its all just family stuff no one ever visits this server, and I hardly see more than 2-3 of us logged on at the ...
0
votes
1answer
36 views

benefits of xinetd for a web server

What are the pros and cons of using xinetd for a web server running on a VPS. Assume the following measures have already been taken to secure the system: system hardening, latest updates, minimal ...
0
votes
0answers
62 views

Industry average for security as a percentage of product budget?

Lets assume the product is pure software or a blend of software and cheap commodity hardware. Is there any work showing what the average industry spending is on just the security aspects as a ...
0
votes
1answer
50 views

Securing user postal address in a database?

I've been assigned a web project that deals with shipping goods between two parties. I am unsure what a secure database scheme (if any) would be for storing the recipient's postal address and whether ...
6
votes
2answers
989 views

Is this an XSS vulnerability?

My company recently had a security assessment done on our website and we had a XSS vulnerability reported. Below are the details of the reported vulnerability: If a user hits a URL like the one ...
0
votes
0answers
52 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: ...
4
votes
2answers
131 views

How can I enable opportunistic encryption for my web-site?

As per an honourable mention in an answer for « Why self-signed https is less trustworthy than unencrypted http? », it appears that there are already two post-Snowden drafts that have to ...
3
votes
2answers
238 views

Learning XSS: Why is my javascript ignored?

<a href='mailto:</a><script>/*'></a><script>/*</a>: <br> <hr> <a href='mailto:*/location.href=/*'>*/location.href=/*</a>: <br> ...
2
votes
4answers
270 views

Why self-signed https is less trustworthy than unencrypted http?

It wouldn't be far-fetched to guesstimate that at least 50% of the web traffic can be intercepted in 2014. However, a guesstimate of active interception attacks is likely an order of magnitude ...
1
vote
1answer
131 views

SQL truncation vulnerability

I came to know the SQL truncation vulnerability that I wasn't aware of. It is my understanding that this vulnerability is based on the fact that MySQL truncates the value of an "insert query" whether ...
2
votes
3answers
110 views

Separate log-in panel for administrators?

I have a dispute with my father about the following ... I want to make a website (with MySql database) and use the root/index - page for BOTH the log in entry for normal visitors AND log in for ...
10
votes
4answers
2k views

Authenticating without a database

I've been inspired by a question over on Code Review, which boils down to: What is the proper way to authenticate a user without a database? Would it be the exact same process if you stored ...
5
votes
3answers
602 views

Can allowing a web application to move, copy and/or delete files outside of the server root be a security issue?

I am new at using and programming web applications, so I wanted to ask a question. Is it safe to execute os commands like copy and mv and delete from a web app that is running on an apache, or does it ...
4
votes
2answers
152 views

You've just acquired a newly created CentOS server, what should you do to secure it?

I've just acquired a new CentOS server, which will be hosting a Ruby on rails application, it is public facing. What should I do to secure this server?
0
votes
1answer
67 views

Security of starbucks gift card redemption feature

Someone sent me a Starbucks gift card. The email contained a redemption link, and that redemption link ended in a long secure hash, much like those on github secret gists. Clicking the redemption ...
0
votes
1answer
32 views

How should I validate an API key for a web service deployed via iframe?

I'm working on a small web service that provides some functionality that can be embedded in a web page with an iframe. As this is a subscription-based service, I'd like to be able to manage who can ...
2
votes
3answers
246 views

How to store passwords securely in my server?

Disclaimer: I know I should use bcrypt to securely store user's passwords. Please, keep reading. I want to store credentials for several email services for each user. So if I log in with my username ...
1
vote
1answer
148 views

Theoretical home grown password options, or what is it that SCrypt, BCrypt, PBKDF2 does that is so special?

I'm developing a personal web framework, nothing internetty, and probably not even anything that will ever go on my personal LAN. And looking for password advice people seem to only recommend those ...
1
vote
2answers
78 views

In two step authentication, should I check step 1 before proceeding to step 2 or check both at the end?

I asked this question first on Stack Overflow but it was suggested that Information Security would be a better place for it (pretty obvious in hindsight). ...
5
votes
5answers
221 views

Is sending plain passwords over SSL as part of a password update process bad?

The Web application I'm working on is 100% SSL secured (or rather TLS as it is called today...). The application recently has been audited by a security company. I mostly agree with their results but ...
2
votes
2answers
441 views

Protecting hidden form fields

The scenario is as follows: An application has a web interface through which data can be configured. The data to consider for this question is Users with a many-to-many relationship with Groups. ...
0
votes
1answer
64 views

How do I secure “Data at Rest” only allowing Service API to access it from a mobile application

How do I secure data at rest from unauthorized access, but still allowing my application to access the data using user authentication over HTTPS? My scenario is as follows: Login to application ...
0
votes
1answer
44 views

When is it appropriate to provide clickjacking protection one of my websites pages?

I run a couple of websites, so I'm just wondering what is the appropriate use of clickjacking protection like the x-frame-options response header? What pages are susceptible to this kind of attack on ...
0
votes
0answers
127 views

Socket.IO & WebSocket security - query certifcate/public key a leak?

Socket.IO and WebSocket do not provide underlying connection information (like the certificate or public key of the SSL/TLS channel), and I'm trying to understand the reasoning. The context for this ...
0
votes
1answer
171 views

SQL injection is possible but selected queries not working

I'm black-box testing an application which uses java spring framework and MySQL in the back-end. When I insert a single quote (') in a text box field, the server returns a HTTP status code 500 ...
0
votes
1answer
66 views

Beating CSRF using Tokens

I am new to web programming. I read an article where they advised to use tokens as a hidden field in forms and match that token at the server end to detect non-legitimate requests. I am wondering what ...
0
votes
3answers
703 views

How do you capture ALL the traffic from an Android app?

I want to capture all the traffic from an Android app for its pen-testing. How do I do that? Here's what I've already tried: I installed the app on an emulator and started the emulator with a ...
3
votes
3answers
88 views

Is login limiting still needed if we employ multi-factor authentication?

The status quo is that most online websites limit login attempts per IP address, or even per account since some attackers possess huge amounts of IP addresses. OWASP declares: When multi-factor ...
0
votes
5answers
221 views

Are all URL shorteners unsecure/vulnerable?

The OWASP state that open redirect is a vulnerability: An open redirect is an application that takes a parameter and redirects a user to the parameter value without any validation. This ...
0
votes
1answer
39 views

Does a username/password + emailed PIN count as strong 2FA?

To log in to a enterprise web app, our security team is insisting on 2FA as it is hosted on our internal network. The proposed solution is to have a standard username (email address) and password ...
1
vote
1answer
96 views

Implementing password-reset in a web application by authtoken over email

I think I have a basic understanding of security concerns, but I feel like if I don't know everything, I'm going to implement lousy solutions. Below is my current strategy; Have I overlooked obvious ...
11
votes
4answers
470 views

How to protect against login CSRF?

http://seclab.stanford.edu/websec/csrf/csrf.pdf points out that most CSRF protection mechanisms fail to protect login forms. As http://stackoverflow.com/a/15350123/14731 explains: The ...
2
votes
1answer
173 views

How to work effectively to win bug-bounties?

I really want to prove myself (to my parents) by winning a proper bug bounty How should I best prepare for this and go about actually finding bugs? Edit So can anyone give some web sites ...
5
votes
3answers
349 views

What exactly determines what version of SSL/TLS is used when accessing a site?

If I click on the little lock icon in Chrome it says that the site in question is using TLS v1. I also checked using openssl and was able to hit the site using TLS1, SSL2 and SSL3. From what I ...
1
vote
1answer
67 views

Web-based intrusion detection integrating visibility into web app and database

Consider the problem of hardening an existing, database-backed web application, to detect attacks and stop them where possible. It seems like one plausible approach might be to build an intrusion ...
1
vote
0answers
131 views

'Ghost' access to a php file on a web server

I'm developing a personal project and one part of the project is a php website, hosted at hostinger as a free plan, that allow clients to ping to it and stores the WAN IP and the NAT IP of them. ...
2
votes
2answers
187 views

XSS in HTML meta tag

There is a web application which contains a search function. When I search for aaaaaaaaxss I get this: <meta property="the:property" content="100 Results for aaaaaaaaxss (Page 1)" /> It strips ...
2
votes
1answer
157 views

Are there HIPAA requirements to encrypt our database hosted in AWS

I'm developing Medical Billing & EHR Software. On completion we are planning to use AWS for hosting and thus provide SAAS. Do we need to encrypt the MySQL database in order to keep HIPAA ...
0
votes
0answers
30 views

Best practices concerning pushing user registrations

Imagine an organization which possesses a lot of personal customer data in their internal databases. This organization creates a web application, and wishes to be able to send a registration link to ...
3
votes
4answers
205 views

Ethical brute force demo on a web login when knowing the password complexity requirements

We are currently having accounts compromised at a substantially high rate. Some in the organization believe that our password complexity requirements is enough to thwart brute force attacks. I wanted ...
1
vote
1answer
37 views

Resources for reviewing multi-tiered webabbs in Spring, Hibernate or JAX-WS

I need some pointers to any resources (videos from any conferences or general videos, pdf, anything) for secure source code reviewing of multi-tiered web-apps in JAX-WS, Spring or Hibernate. I am ...
1
vote
2answers
139 views

I can upload any file to an ASP webapp/IIS server but I do not know where (which folder), is this exploitable?

I'm able to upload any file to an ASP webapp/IIS server. My first though is to upload an ASP shell but I don't know where the file has been uploaded. I have written a Python script that beggining ...
2
votes
1answer
145 views

How are Ajax requests vulnerable to CSRF attacks if the Same-origin policy is applied?

What I know about CSRF is that a malicious website tricks a normal user into issuing a request to a trusted website using a form. I understand that is possible because we can post forms to different ...
1
vote
1answer
215 views

How to handle private key encryption/decryption for web application

In the process of designing a web app that handles public/private key pairs - a Bitcoin web app, specifically - I've had a lot of thought on how to securely handle the storage of the private key, ...
1
vote
1answer
110 views

Path Truncation not working in PHP while exploiting LFI

From what I understand in PHP '/etc/passwd/' or '/etc/passwd/./././' should be treated just the same as '/etc/passwd' I am using PHP 5.4 and this does not seem to be true: php -r ...
2
votes
3answers
91 views

Multi-factor auth: implementing a “don't ask again for this computer” function

Many sites that support multi-factor authentication provide a "do not ask me again for this computer" option. I'm hoping to gain some insight into how this feature could best be implemented. My ...
0
votes
1answer
138 views

Why is it a bad idea to escape HTML before escaping SQL? [duplicate]

From the security perspective (and not usability as it's discussed here http://stackoverflow.com/questions/3648430/is-it-a-bad-idea-to-escape-html-before-inserting-into-a-database-instead-of-upon), ...
1
vote
1answer
168 views

Any reason I shouldn't be salting and hashing before putting through bCrypt?

I've been reading up on password storage and such, and have come to the conclusion that I need to be using bCrypt. I've got an implementation working correctly, but I'm wondering the best way to move ...
0
votes
0answers
44 views

Managing keyczar keysets across multiple servers (google compute engine)

I'm a developer building a web service that will be required to store a few credentials for 3rd party services that would themselves provide access to customer data that I would consider sensitive. ...
-1
votes
1answer
98 views

Hash leaked online

Recently I Googled the email address of one of my friends, as I was just curious of what would come up. Lo and behold, he saw what presumably is his Gmail hash. It is part of a list of 10,170 email ...