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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3answers
221 views

Capture query to MySQL in Server

I want to capture queries to MySQL from my web-application on my Linux-based Server. MySQL port is 3306 and my web-application in on port 8181. So I started using tcpdump as follow: # tcpdump -x ...
1
vote
1answer
100 views

How can non-secure or non-https-only cookie affect security of an HSTS website?

If a website is running on HSTS and it is setting about 20 cookies. Out of those 20 cookies 15 are both secure and https-only and remaining 5 are neither. In this scenario, in what all ways can we ...
1
vote
2answers
921 views

Burp configuration to allow SSL connection

I'm trying to capture Request/Responses using Burp on Mozilla. I've configured Burp Proxy on 8080 and have set same proxy settings on Firefox however when trying the Gmail link, Firefox gives "This ...
1
vote
1answer
155 views

Adding hash value to user supplied URL in a web application: any security benefit?

We administer a Java web application from an external supplier where we have access to the source code. The user is able to provide an external URL which is stored in a database and later on embedded ...
3
votes
5answers
6k views

Efficient way for finding XSS vulnerabilities?

Manual (reliable) way: Put string containing characters that have special meaning in HTML into some parameter of HTTP request, look for this string in HTTP response (and possibly) in other places ...
0
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0answers
147 views

POST request in curl return all the source code of the page

I am trying to exploit the mutillidae web-application and I found a page vulnerable to sql injection but with a blacklist check embedded into the HTML code. I've tried to bypass this by forging a POST ...
4
votes
1answer
105 views

Is limiting access to a web script with .htaccess secure enough when that script can run arbitrary commands?

Okay, so I don't have much HTML experience, but I recently started working on a project with a group of people that involves regularly manipulating files in a web server. I would like to work on this ...
2
votes
2answers
173 views

ASP.NET SqlDataSource injection risk

I have an internal website (going on the intranet) that is going to go through vigorous testing to make sure that it is secure, so I am battening down the hatches so to speak and I coded a .NET ...
-1
votes
2answers
112 views

XSS InJavaScript

Recently i was figuring out a web application and found that the url is reflected among the source of the page which make it bit obvious for xss but the input from url which is reflected on source is ...
0
votes
0answers
121 views

Tunneling Remote Desktop from DMZ Windows server to my Listening Linux Server. How to?

I have a situation in a penetration test where I got a meterpreter on an internal (DMZ) Windows box, and I want to connect via RDP to it, however the RDP port is blocked externally. The box I hacked ...
2
votes
3answers
160 views

Are externally referenced libraries (CDN's) a security issue?

Today I read about an alleged malware attack targeting jQuery.com A german blogger who is what I would call an expert on IT security stated that Any website that is working with ...
-2
votes
1answer
60 views

Escape from <script> to cause a XSS (XSS when reflection is already under <script>) [duplicate]

I am trying my level best to solve this issue i am totally not able to create a XSS i still thinks it to be a vulnerability and i think it is exploitable. I am frustrated around it for 8 days . Please ...
-1
votes
3answers
182 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
145 views

Worst-case scenario OPEN URL REDIRECTION and why google not covering it in bug bounty

OPEN URL REDIRECTION as per in my opinion can be proved very dangerous by crafting attacks such as phishing. But it seems like google thinks it as a very low level bug and does not provide any ...
1
vote
0answers
105 views

The simplest way to emulate TCP-IP protocol violation / anomaly attacks

Reading up upon security on web applications I did not found that much info on TCP-IP and in particular HTTP/UDP protocol violation / anomaly attacks. My question: What is the general mechanism of ...
5
votes
2answers
1k views

Generating one-time tokens from API-key?

I have a web-site for which I'm building a Drupal module that allows the users of that Drupal site to navigate to my web-site directly from the Drupal site. I intend to distribute secret API-keys to ...
8
votes
4answers
1k views

Can anti-CSRF token prevent bruteforce attack?

I am not much experienced with brute force attacks but I was wondering Suppose, you have a website www.example.com and you want to do brute force attack on that login form but that login form is ...
2
votes
1answer
71 views

What is x-frame content?

I tried scanning websites for vulnerabilities and found most of them are with low risk x-frame content and "nosniff" what is it exactly?
0
votes
1answer
431 views

Reflected XSS script passing through URL how to make it work and what are the preconditions for it to work?

Trying to learn about security I set up the most simple website on my localhost consisting of one html page that a apache server serves. I first started trying and appending the JS script that would ...
3
votes
2answers
307 views

How safe is to secure sensitive content by URL with MD5 hash and no other authorization?

Suppose we have website that use MD5 hash in URL like this: http://somewebsite.com/XXX/ where XXX is MD5 hash. Content of this website may have sensitive information like transaction details with ...
3
votes
3answers
2k views

XSS : Content-type: application/json

Background information - Application responds to request to a particular URL with content-type: application/json JSON response contains a parameter from the request Escapes the quote with a slash ...
-1
votes
1answer
216 views

Writing application specfic rules for WAF?

I was reading an article on "Protocol-Level Evasion of Web Application Firewalls" and the article insist on writing application specific rules in this manner: <Location /index.php> ...
21
votes
3answers
3k views

What are the disadvantages of implementing HTTP authentication in a web application? [duplicate]

I know that there are different types of authentication mechanisms available. One among them is the HTTP authentication. What is the danger in using this method compared to other methods?
3
votes
1answer
2k views

How secure are Google (Drive) Web Forms?

My child's school is using a Google Web Form to collect student and parent information, including occupations, addresses, maiden name, birthdays, contact information, and who the child resides with. ...
1
vote
3answers
106 views

Prevent someone from using your site for phishing?

So I have a site where users can create online surveys and send them out to whomever they like. Over the past few months we have seen an uptick in one particular user who creates an account, then ...
3
votes
2answers
355 views

How to keep someone from analyzing our site?

For the past days some script kiddie has been scanning our site with w3af and some basic manual checks. Although I know the site is "secure" because I analyze it almost everyday, I'm not perfect and ...
4
votes
2answers
273 views

Two-factor verification without a mobile phone?

Currently, some services use a second layer of veficiation if logging in from a new device: Gmail and Facebook send a text or call with a code Facebook generates a code in the mobile application ...
5
votes
3answers
634 views

is it safe to allow external images to be attached to Blog or any Web content?

I am filtering all images that attached to any content of my blog: Check for file extension. Check content type using $finfo = finfo_open(FILEINFO_MIME_TYPE); I also save the image temporary on my ...
21
votes
9answers
2k views

Is a web application firewall necessary if the application is secure?

Recently I've been reading about Web application firewalls and the fact that they protect against most frequent attacks like injections, XSS or CSRF. However, a good application should already be ...
16
votes
3answers
4k views

Is encrypting SALT with given user's password more secure?

I'm learning about web security. I understand that passwords are hashed with salt. Why aren't the salts encrypted with same user's password? Cloudn't this make password cracking much harder? ...
1
vote
0answers
51 views

Does Ally Bank's trusted image system actually make login safer? [duplicate]

Ally Bank uses a 'trusted image' system to supposedly make login more secure. I can't find evidence that this is standard practice, so I'll explain it. When creating an account, you choose an image ...
1
vote
2answers
145 views

Can my University see what Stack exchange account I am logged into?

I have to log into an account to use the university internet, so I imagine they can see all the sites I view, but can they see what account I am logged into, and can I do anything to hide this?
1
vote
1answer
212 views

Securely send password to script as parameter

I have an expect script on my server which opens a WebDAV connection to another server, expects a username and password, and then sends $arg1 and $arg2 as the username and password respectively. ...
0
votes
1answer
101 views

What is the danger or downside of using online/cloud web app scanner vs on premise ones?

Cloud scanners are becoming more common these days. Pricing is a lot cheaper than on premise scanners. My concern with cloud scanners is that they store sensitive information on 3rd party network. (I ...
0
votes
1answer
187 views

Execute a remote PHP shell which is inside a file I dont have permission to access

Hi need some help here. I am trying to exploit an unsanitized file upload with a PHP backdoor. Basically the file uploads successfully and I can see my backdoor inside the web applications /images/ ...
1
vote
2answers
167 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 ...
-2
votes
1answer
141 views

Scanner / tool to generate a list with all forms and input fields of a website [closed]

I'm not very experienced with information security but know some basics about injection attacks and other web based attacks. Is there a tool / crawler to find all forms and input fields of a whole ...
1
vote
1answer
165 views

Is Payment using an iframe more secure than using as Javascript library?

Traditionally most Payment providers only provide Hosted Payment Sites via redirect or iframe. But now an increasing number is also supporting payment integration via a Javascript library. I imagine ...
7
votes
4answers
6k 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 ...
2
votes
1answer
1k views

Correct way to perform secure two way encryption on a web site

I'm currently working a project that requires me to store sensitive information (mainly passwords and other information) on a web server via a standard python/flask website. This information is to be ...
1
vote
2answers
297 views

How to secure a web service for web applications using same database?

I have 2 or more web applications that need to be able to communicate together using a web service interface. Information All applications are using TLS/SSL (https) All applications have access to ...
2
votes
1answer
230 views

How does Mylar ensure encrypted data remains secure even if the live app code is compromised

Because Mylar does the decryption in the browser, the key is never stored on the server. Nice. This moves the threat to the browser, where, if the attacker is able to get a malicious script to be ...
1
vote
1answer
84 views

Logging in users automatically on a website

I'm making a website that has an extended forum feature, where users can login, post comments, etc. I'm making the feature where the website stores cookies in your computer so the next time you visit ...
5
votes
2answers
659 views

Escaping rich text editor output

When having a rich text editor on a web application, what is the best way to escape HTML entities and prevent XSS attacks but keep the formatting (<b>, <i>, <u>, ...etc.) ?
1
vote
2answers
133 views

What can I do to increase security of a small open source application

I've been developing a small CRUDish Ruby on Rails application on my free time for a non-profit organization. The app is already running in a small scale in Heroku. Lately I've been thinking about ...
2
votes
1answer
651 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 ...
56
votes
1answer
3k views

“Allow __ to be fullscreen?”

I have been asking myself for a while what's the purpose of that popup showing up in pretty much all the modern browsers upon entering the full-screen mode of a video or website. It appears to be a ...
13
votes
6answers
8k views

Disable insecure/dangerous PHP functions

Typically my job description limits me to code-review of web applications. More recently I've been asked to assist with some server-side PHP optimization where, although I am familiar with it, I lack ...
1
vote
2answers
114 views

Are input fields that don’t have name=“” sent via the browser [closed]

Are input fields that don’t have name attributes susceptible to MITM attacks (w/o SSL) or any other attack? For example: <form action="" method="post"> <label ...
6
votes
3answers
5k 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 ...