A web browser is an application which uses HTTP and related protocols to retrieve HTML and XML data from servers. As the web has become a critical source of information and communication, web browsers have become a critical component in information request, transfer and management.

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43
votes
5answers
10k views

How to fight browser fingerprinting?

https://panopticlick.eff.org/ , aka "How unique and trackable is your browser". For example it usually gives me a unique score. The biggest entropy values come from navigator.plugins and fonts via ...
5
votes
1answer
475 views

Regarding Windows password and Chrome's 'Remember password' Feature

Google Chrome browser helps in password management by prompting users to remember their passwords for the websites. These saved passwords can be accessed from the browsers "settings" menu, and to do ...
21
votes
4answers
11k views

Should sensitive data ever be passed in the query string?

Should sensitive data ever be passed via the query string as opposed to the postback? I realize that the query string will be encrypted, but are there other reasons to avoid passing data in the ...
4
votes
3answers
2k views

GET and POST request vulnerable to CSRF attack?

Are both GET and POST request vulnerable to CSRF? Should we use PUT instead?
4
votes
1answer
82 views

Risks of HTML/JavaScript window.opener security flaw?

I do not know if you are aware of this flaw, but here is a basic example: somepage.html (pointing to malicious.html): <!DOCTYPE html> <html> <head> <meta charset="utf-8"> ...
3
votes
1answer
120 views

Browser exploits based purely on HTML + CSS

In 2011, Eli Fox-Epstein demonstrated a Rule 110 machine in HTML + CSS3. This led some to say that the combination of HTML + CSS3 is Turing complete. Regardless of whether HTML + CSS3 is technically ...
0
votes
2answers
87 views

Firefox and chrome infected with hohosearch and newsearch123.com [duplicate]

A fortnight before, I downloaded a keygen file, which I presumed to be fine, but when I started the installation, I felt there is something weird. So I was about to start the installation, but I ...
0
votes
1answer
80 views

Is WebRTC safe for connecting random clients to each other?

I am trying to implement a chatroulette-sque app, and WebRTC seems to be the best choice as far implementing something that doesn't take a vast amount of server resources. My current scheme is to ...
1
vote
1answer
80 views

Standard for securing web server to client connections via HTTPS on the local area network

I am trying to set up some kind of secure client to web server connection that takes place entirely on local area networks, but I'm having trouble understanding what the recommended best practice is. ...
1
vote
1answer
43 views

is browser the only app that can set supercookies?

I'm trying to identify a if a website uses tracking cookies beyond ordinary cookies, that get deleted when I click "Delete cookies". The work plan is to run a clean virtual machine, use a software ...
68
votes
4answers
26k views

Why is the same origin policy so important?

I can't really fully understand what same origin domain means. I know it means that when getting a resource from another domain (say a JS file) it will run from the context of the domain that serves ...
-1
votes
0answers
35 views

Fuzzing Chromium with NodeFuzz [closed]

I have downloaded the asan version of chromium (i'm on a mac). It runs just fine. I also installed NodeFuzz and before I can fuzz chromium I need to edit the file in the NodeFuzz directory called ...
5
votes
1answer
947 views

How make Firefox ignore X-XSS-Protection header from server?

I have two questions: 1)How can I make Firefox ignore X-XSS-Protection header? I have a website which sends X-XSS-Protection: 1 header and I want my Firefox to ignore that header, because it destroys ...
22
votes
2answers
23k views

Site preventing user from closing tab/closing browser

I've come across the following website hxxp://politie.nl.id169787298-7128265115.e2418.com/ [Possible malware] Whenever I open it in Firefox it prevents me from closing it, I can't even close the ...
6
votes
2answers
158 views

Why are certificate chains different in Firefox and Chrome?

I have a server with HTTPS, and I noticed a very strange behavior which I cannot understand. When I checked the chain in Firefox, there is this: But in Chrome I see this: So it's clear, that ...
0
votes
1answer
119 views

How might my browser session be hijacked on iOS Safari?

I'm currently on iOS using Safari, and my browser session was just hijacked. Ive never seen any hint of malware on iOS, so I'm going to assume the hijacking occured (consistently happens when visiting ...
0
votes
1answer
99 views

Safari not showing GREEN lettering for EV SSL

I've recently installed an EV SSL cert on my server, Chrome and Firefox show a green banner and padlock denoting the EV cert is installed, but in Safari, it just shows a gray padlock... is there ...
1
vote
1answer
76 views

Why does Safari still support SSL 3?

The "POODLE" attack was made public in October, 2014. Why does Safari still support SSL 3.0 after POODLE showed it to be insecure?
4
votes
3answers
188 views

why is thepiratebay.se listed as deceptive site in Chrome and other browsers

Why is thepiratebay.se listed as deceptive site in Chrome and other browsers? My Norton says nothing about fishing or malware. There is no doubt that some organisations doesn't like thepiratebay but ...
0
votes
2answers
68 views

Malware or viruses by browser redirects?

Recently was browsing and clicked on a link to the following address: (In code blocks so you cant accidently click it) http://paycheck-calculator.org/ Clicking on this quickly loaded 2-3 different ...
2
votes
3answers
60 views

Can freezing the browser be considered a security vulnerability?

If I can write a client script (a piece of JavaScript code) that can freeze the entire browser, a force quit/kill being mandatory, is that considered a security issue? If so, what's the type of this ...
2
votes
2answers
144 views

Suspicious Network Activity - is my system compromised?

When using Firefox to open a blank page, I have a weird network connection that shows under Network Activity in Resource Monitor (Windows 7). The address is: insiders-guide.pacedev.com. A ...
4
votes
1answer
67 views

Can canvas fingerprinting be prevented?

How can canvas fingerprinting be prevented in web browsers? The site Panopticlick said I had a hash of WebGL fingerprint of 5 bits of entropy. I installed CanvasBlocker addon and tested again and it ...
3
votes
2answers
104 views

Preventing Browser from BeEF Exploitation

BeEF is a great exploitation Browser based tool. But in some cases, unknowingly people get Hooked due to beef when it's hook.js is kept in Invisible Iframe of an HTML source. So How, can we detect ...
22
votes
3answers
4k views

Is it possible to transfer a virus through browser video?

I know that there is already a question related to viruses in videos, but the implication in the other question is that videos in question have been downloaded and played by media software on the ...
2
votes
1answer
214 views

Encrypting data before sending to SaaS tool and decrypting on browser view

I'd like to send data to a SaaS tool, where the data is stored in the cloud. I'll use Google Analytics as an example, but it applies to any similar service. Google Analytics does not allow you to ...
0
votes
2answers
124 views

How secure is “Browser in the Box”?

I'm wondering how secure is "browser in the box" from Sirrix? They said in their official website: In contrast to simple sandboxing methods provided by standard browsers "Browser in the Box" ...
2
votes
1answer
57 views

Differences between Burp request and Browser - Has different responses

So I was put on an engagement over the last week and I found a potential XSS when using Burp's intruder/repeater. However, the strange thing that I noticed was that the response in Burp is different ...
38
votes
8answers
10k views

Why do browsers default to http: and not https: for typed in URLs? [duplicate]

When I type example.com without any scheme into the browser bar and press Enter it is interpreted as HTTP://example.com, not HTTPS://example.com. Why? And where are the plans to fix this? (To be ...
35
votes
10answers
11k views

Is anybody using client browser certificates?

Client browser certificates seem to be a nice way to protect sites from intruders - it is impossible to guess and should be harder to steal. Of course, they do not solve all the problems, but they add ...
3
votes
1answer
36 views

What security implications does DNS prefetching have?

To improve performance, most browsers prefetch DNS records for linked resources in the background so that the browsers already knows where to send the request the instance you click the link. This is ...
4
votes
3answers
100 views

Could Google Chrome's lack of a download confirmation dialog be a security vulnerability?

Suppose the user is playing a game like flappy bird that requires constant tapping in the lower left area of the screen (where the downloaded file needs to be clicked). Then while the user is ...
2
votes
2answers
1k views

How to hide real IP from browsers while using VPN?

You probably know that even when you use a VPN service, browsers like Chrome and Safari can still somehow provide your real location to Google Maps etc (if you give it a permission). My question is: ...
0
votes
0answers
30 views

Can a virus execute without user interaction? [duplicate]

I have seen a lot of malware infection techniques where the user is infected by drive by downloads through browser vulnerabilities or social engineering. But is there a way that a virus could execute ...
13
votes
4answers
9k views

How does BeEF work? (working understanding)

I have recently come across the BeEF- a browser exploitation tool. In most of the articles, it is said time and again that it is developed for research and pen test purposes! Has anyone worked with ...
2
votes
0answers
49 views

Configuring Chrome to handle ETags like Safari

ETags can be used for tracking, but I happened to notice that Safari handles them differently from Chrome (and Firefox). I believe it's non-standard because it doesn't work across domains. If we ...
2
votes
2answers
51 views

Protect against virus and malware attacks from website ads with iptables

Lots of websites spread malware by publishing advertisements that distribute malware. Even YouTube's ad network has been compromised in the past. Browser ad blockers and related plugins have there own ...
17
votes
4answers
11k views

Is WebGL a security concern?

Is WebGL a potential security problem due to the low level access it provides? For example, a web page can attempt to compile and run any shader source it wants. It seems that security would ...
0
votes
1answer
52 views

Why do some websites tell you they use cookies? [closed]

I often visit websites that have a small box telling me that they use cookies. Most sites just store cookies and don't say anything. Is there a reason that some do and others don't? For example:
3
votes
0answers
59 views

Secure a server on `localhost` such that only the authorized users can connect

Consider an application (such as an IPython notebook) that runs an HTTP server, and that (by design!) allows arbitrary code execution by authenticated users (this is the entire point of IPython, ...
4
votes
2answers
189 views

How do I protect my passwords from WebBrowserPassView?

I just got shocked with what can be achieved with WebBrowserPassView. It basically shows every password I've saved in my browser (Chrome). I guess other users on my PC could get my passwords that ...
0
votes
1answer
41 views

Alternative to Avast Safezone for banking

Apparently low level keyloggers etc can intercept typed details before Safezone keylogging protection kicks in. Would BD Safepay avoid this problem with its enforced virtual keyboard ? Or perhaps ...
28
votes
3answers
123k views

How to determine if a browser is using an SSL or TLS connection?

I want to know whether my browser is using SSL or TLS connection if I see HTTPS. I want to know for IE, Firefox, Chrome and Safari. I want to know the protocol version.
6
votes
4answers
10k views

how can you inject malicious code into an innocent-looking URL?

I am learning about XSS attacks. Wikipedia says that in a non-persistent attack an attacker may provide an innocent-looking URL that "points to a trusted site but actually has an XSS vector." What ...
15
votes
5answers
2k views

What is the difference between http and https with a self-signed SSL certificate?

A colleague of mine has told me he doesn't see why there is a warning when visiting a HTTPS website with a self-signed certificate saying that the security may be compromised, but there is no warning ...
2
votes
1answer
28 views

Security Protocols for a Blog [closed]

What are some security protocols that I should be aware of when starting and running a personal blog? I am steering away from WordPress and will another hosting service. The blog will mainly just be ...
14
votes
4answers
2k views

Why do browsers warn about mixed content for images?

I'm dealing with a phpBB forum user who wants to set up SSL on their entire site to secure user credentials and "private" parts of the website. However, they want to preserve the traditional forum ...
-2
votes
1answer
77 views

Clicking a lot of website links in Google Maps, then sent through multiple URL redirects, and lastly to a page that made my laptop start beeping?

I was in Google maps clicking on all the website links listed in the side panel, looking at every website really fast. Note, they were all tattoo parlors. One of the links I clicked bounced me through ...
2
votes
2answers
85 views

Security feature: Preventing javascript from closing the window

The latest versions of most web browsers have implemented a feature to prevent javascript from closing current window or tab. Firefox window.close() method This method is only allowed to be ...
0
votes
2answers
1k views

Firefox vs. Chrome extensions: Which are---ceteris paribus---more secure?

As an 'extension' to earlier questions on this topic (for instance here and here), What makes Firefox extensions (appear) more secure than Chrome extensions? Do they just appear to be more secure, ...