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

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3answers
83 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
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0answers
27 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
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4answers
182 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
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1answer
87 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
1answer
120 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
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3answers
8k views

What does these warnings mean on an SSL connection by firefox (only)

I am connecting to a secure site and firefox mentions about identity: Owner: This website does not supply ownership information Verified by: Not specified Technical Details: Connection ...
1
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1answer
168 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
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2answers
109 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 ...
1
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1answer
36 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 ...
2
votes
2answers
789 views

XSS cookie stealing without redirecting to another page

I'm practicing in VM following the OWASP guide. I know that is possible to steal the cookie by redirecting to "False" page etc. but I would like to steal the cookie without redirecting on another ...
1
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1answer
149 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
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3answers
116 views

How to leverage a stored XSS to perform a file inclusion?

I have identified a stored XSS and I'm wondering, how could I leverage that vulnerability to upload a shell.
0
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0answers
29 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. ...
3
votes
2answers
305 views

Computer-level logging by financial institutions

I am looking for the best approach to recognizing a specific computer and saving that computer as a "safe" login machine. My intuition points me to using cookies, but what value do I store in there to ...
-1
votes
1answer
94 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 ...
0
votes
1answer
65 views

Access-Control-Allow-Origin possible threats on static JS file

As I am working on a research, I need allow users to read my JavaScript file using Ajax. However, I want to make sure about consequences of adding Access-Control-Allow-Origin header for just this ...
2
votes
4answers
808 views

Simple solution to XSS

I've got an idea as to how to defeat XSS so simple that it may work and was wondering if anybody had already done something similar. The goal here is not efficiency but security. In other words I ...
3
votes
1answer
554 views

Authenticating users on offline devices such as ipad

We are wanting to authenticate the user inside a webapp (JavaScript/HTML inside browser) running on a tablet, but want to be able to do this when the device is offline from the network. I realize this ...
3
votes
1answer
682 views

Securing sensitive data in a DB,is using H2 worth it?

I am designing a web application at the moment, and one of the requirements is to secure the user credentials as well as their roles. Now of course, besides the usual password hashing + salt +.... I ...
2
votes
2answers
177 views

Dual Authorization (Social Auth 2.0)

Can you see any obvious challenges to requiring 2+ users to confirm authentication requests using an association such as a friendship type of relationship. A practical application would be an ...
3
votes
2answers
102 views

Webapp vulnerability scanner that understands continuations

I'm researching XSS vulnerabilities in a web application which uses continuations. That means that for a given form, the URI the form data is posted to is unique and different every time. A first GET ...
5
votes
4answers
622 views

Suggestions to avoid cookie-hijacking in a web application

I've been developing web-apps for quite some time now. While making websites, the "remember me" feature is one of the most trivial(read as must-have-for-clients) feature to be implemented. Until ...
0
votes
0answers
52 views

HTTPS site not being captured by BURP

I am testing a website, basically mapping the site using burpsuite. But there is one link(https) that I can not process while the proxy on firefox is enabled. It asks me for certificates and when I ...
12
votes
4answers
488 views

How should I secure a contact form that appears on every page of a website?

My client has a small "Contact Us" form on every page of their website. They are adamant about not including CAPTCHA verification on these forms, to keep them easy to use, but I feel it is my ...
3
votes
0answers
233 views

A Google owned IP address accessed my outlook account [closed]

Today I got a warning from Microsoft saying that there was unusual activity on my account. Diving deeper I saw that there was a successful sign in from a Google owned IP address (according to ARIN). ...
6
votes
3answers
4k views

Testing clean urls with sqlmap

Is it possible to test for SQL injection vulnerabilities with using sqlmap with a url that is using mod rewrite (or something like it) to make the urls clean? I know how to test my sites that have ...
1
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3answers
976 views

will google detects tor browser?

Usually while we browse Google through our i.p we will be redirected to respective countries,i normally use tor browser for anonymity,today while i browse google i got redirected to ...
1
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1answer
35 views

make specially encoded template available for file uploads

A comment to this blog post at sans.org about secure file uploads suggests making a pre-formatted template available for users when they need to do file uploads. The user would use the template to ...
0
votes
1answer
108 views

Some queries regarding SQL injection

[I'm not really sure if I should be posting this on SO or here. I think my questions might be answered if I have had a good experience with MySQL. But, I don't. So probably, most of you will ...
9
votes
5answers
1k views

Ads appearing in our application when they should not be

I received a strange issue reported by one of my web application users. Apparently they are getting "ads" within the browser window when using my application. I didn't add advertisements at all. It's ...
68
votes
7answers
25k 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?
0
votes
1answer
97 views

Content sniffing XSS vulnerable browsers

In order to prevent Cross-site scripting (XSS) in a private web application that supports image upload, I intend to reject browsers that are vulnerable to content sniffing. Which browsers are ...
9
votes
6answers
4k views

Why is php not used for banking sites or for a banking transaction?

Other programming languages popular on the web, such as Java and .NET, are used for banking sites. However, I've rarely (if ever) seen a PHP application designed to be deployed for a banking site. ...
2
votes
2answers
129 views

Is AES encryption vulnerable?

I was reading weaknesses in AES encryption. Unfortunately, I have a website that uses AES: Its database is almost entirely AES encrypted. Is there a real threat? Would it be worth to refactor the web ...
3
votes
2answers
619 views

Box web application security review - legality? [closed]

is it legal to do a security review/pentest of a web application that we bought and operate on our servers? Meaning, the whole infrastructure is ours + we bought a licence for the software. Can we do ...
10
votes
2answers
7k views

Why does Hydra return 16 valid passwords when none are valid?

I've been playing around with Hydra and DVWA and I've hit a bit of a snag - Hydra responds letting me know that the first 16 passwords in my password list are correct when none of them are. I assume ...
7
votes
1answer
91 views

What are the implications of publicizing a consumer secret for sharing between developers doing local website development?

In relation to this GitHub issue on the Gittip project (which turned out to be a false alarm), what are the security implications, if any, of hardcoding into the git repo a test app's OAuth consumer ...
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votes
3answers
139 views

How do I communicate security issues encountered on an online banking platform?

Occasionally, I've produced (and reproduced) the HTTP 500 Internal Server Error on an online banking platform - quite a famous one. I suppose the errors are due to bugs in back end code, possibly ...
2
votes
2answers
680 views

IIS Host Header Attacks

Is IIS and ASP vulnerable to the same Host Header Attacks we have seen on Apache and Nginx? Specifically the attacks that use the HTTP Host Header to reset a password or implement web-cache poisoning. ...
3
votes
5answers
284 views

Is there an access-control model defined in terms of application structure?

I'm working on the access control component of a complex web application. One of the goals is to have a strictly defined model for who can do what, but I can't find an existing model that meets our ...
0
votes
1answer
92 views

Tablet / phone app security in unsecured networks

Although reluctant to use my laptop on unsecured networks, I at least know that without me launching any processes or logging into certain web pages, that I will not be sending any credentials over ...
0
votes
1answer
140 views

BurpSuite: Anonymity

Are the attacks being performed using burpsuite detectable? If yes, how should we stay anonymous/secure while conducting web application reconnaissance?
8
votes
3answers
8k views

Does X-Content-Type-Options really prevent content sniffing attacks?

In Tangled Web Michal Zalewski says: Refrain from using Content-Type: application/octet-stream and use application/binary instead, especially for unknown document types. Refrain from returning ...
1
vote
1answer
105 views

Securing Javascript plugin

My company offers a Javascript plugin that is meant to be embedded with websites. It works in a similar fashion to Google Analytics, in which you add a bit of Javascript and then it does some magic on ...
3
votes
3answers
429 views

How to use my WiFi to inspect its user traffic and to run MiTM attacks?

As part of a security research, I need to make my WiFi open, and to inspect the traffic of the ones who connect to it. Additionally, I need to be able to change the content of the webpages they see, ...
0
votes
2answers
61 views

Can session data be manipulated without access to source code

When implementing a web-based application, how secure are any session variables against manual manipulation beyond the scope of my code? i.e. when a user is authenticated, if I were to initialise a ...
-3
votes
3answers
109 views

Hashing credentials. Is hash(email+password) secure enough?

I am working on a client server application where to identify each user I was thinking of storing a single database entry: hash(email + password) In my opinion, this is enough to stop some known ...
3
votes
3answers
155 views

Is web app safe in not public folder?

I'am wondering if it's really safe to use this structure of my web application. WEBAPP Application Controllers Models Views ... Framework ... ...
2
votes
4answers
182 views

Robots.txt and admin areas

I'm using some popular commercial forum software and to help secure the admin area more I have changed the name of the admin folder; however I was wondering, with regards to robots.txt if I go ahead ...
1
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1answer
84 views

Amazon Turk - How secure is it? Strange behavior

I just had this really strange experience with Amazon Turk, where suddenly I was logged into someone else's account. I was logged into the company's Turk account, left my computer for a while, ...