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.

learn more… | top users | synonyms (2)

-1
votes
0answers
27 views

Browser change the IP addesses of the POST requests

On my work PC i have web server working on localhost for development purpose, i use vhosts to access the projects - example: mycompany.dev -> 127.0.0.1 In this project there is a protection against ...
2
votes
1answer
63 views

How secure is HTML5 web storage (sessionStorage and localStorage)?

As part of a Google Chrome extension that I'm building at the moment, I'm thinking of using either sessionStorage or localStorage to store some important user data. The extension's functionality ...
-8
votes
0answers
27 views

Security issues to be considered in case of a webpage [on hold]

What are the security issues to be taken into consideration while loading a webpage?
7
votes
2answers
600 views

Did XSS reach its end-of-life with the introduction of the HTTP X-XSS-Protection header?

With the introduction of the HTTP X-XSS-Protection header it seems to me that the vulnerability impact (read: amount of possibly affected users with modern browsers) is drastically reduced. Firstly, ...
3
votes
2answers
81 views

Does displaying images on profiles by URL have security implications?

I am Developing a Web Application Currently, in which users can Make a Profile and Fill out the User's information, In this i have also kept a Section for Profile Picture, in that i have used a logic ...
0
votes
0answers
30 views

Java Exploits - Not using the browser plugin

I'm looking for examples of Java exploits that do not leverage the Java browser plug-in/Browser applet to run. For example: Drive-by downloads that download a Java file that is run by the JRE but ...
3
votes
2answers
77 views

Do the most used browsers have similar security?

I read that Pwn2Own stopped attacking Firefox, apparently because it didn't make "serious security improvements" since the last competition. Should I understand it as "Firefox is significantly more ...
7
votes
2answers
376 views

Can viruses access passwords that have been saved by a browser?

Say I use Chrome on a new computer to log in to a website, and I select the option to have the browser remember the password. Then I download a straight-up smorgasbord of viruses of every kind. Can ...
1
vote
1answer
56 views

Why do browsers not protect against scripts coming with images?

I understand that this is how it goes: Malformed Image --> Buffer Overrun --> Stack Over Flow --> Execute Malware Pushed On Stack And though I don't a huge amount about this, I know that I ...
8
votes
2answers
111 views

Why do browsers send such detailed user agent strings?

Modern web browsers leak a ridiculous amount of information through the User-Agent header. The following is an example for Safari on iPad, from Wikipedia: Mozilla/5.0 (iPad; U; CPU OS 3_2_1 like Mac ...
0
votes
1answer
69 views

Is it safe to send the user's encrypted password back to them in the browser? Why?

I have planned to send the encrypted password from the application back to the user. I am currently using AES to encrypt user passwords. I want to send the user's encrypted password back to them in ...
1
vote
2answers
89 views

Can I trust browsers not to snoop into my activities?

Is there anything stopping web browsers from snooping into our activities? I don't mean web history or any of that generic stuff (Chrome already collects them, right?), but is it technically possible ...
5
votes
2answers
89 views

Passive fingerprinting of HTTPS client

Is it possible to passively fingerprint a HTTPS client, based solely on data visible to a network eavesdropper? In other words, consider a network monitoring box that can see all the packets (but ...
15
votes
1answer
182 views

Preventing a site from appearing in the 'Most Visited' or 'speed dial' section of a web browser

Are there any established ways of preventing a website from appearing as an icon on the 'Most Visited' / 'Speed dial' / start page of a web browser? One example of this is the tab that opens by ...
-1
votes
1answer
76 views

What to do after exposure to a drive-by infection?

I clicked on a link that pretty clearly offered exposure to a drive-by infection. I won't post the link itself, but I got it from a link which is inside a reddit link (obviously the reddit website ...
2
votes
1answer
77 views

What is vulnerable in this comprehensive browser setup to avoid fingerprinting/tracking?

What is vulnerable in this browser setup to avoid fingerprinting/tracking for general browsing that is still easy to use? The setup is as follows: Firefox on my personal machine with several ...
1
vote
1answer
69 views

Browsers and SSLv3 End-of-Life

Is there a point in time at which browsers will refuse to connect to web servers that support SSLv3 in addition to TLS 1.0/1.1/1.2? Will they produce warnings? I assume the browser would be content ...
6
votes
3answers
2k views

Isn't HTTPS insecure over a hacked router? [duplicate]

I have heard that a hacker can become a proxy using the router your device is connected to and send his own public key to you instead of you getting the server's public key - which the browser will ...
3
votes
1answer
53 views

How can a modern Windows/Linux system be compromised by a heap overflow in Chrome?

Wikipedia's article on Heap Overflow states: there are primarily three ways to protect against heap overflows. Several modern operating systems such as Windows and Linux provide some ...
3
votes
2answers
104 views

Should I use websockets (ws) or secure websockets (wss) for my game?

I'm making a game and I'm using websockets for 99% of communication. The only http(s) is on initial page load and when logging in/registering. I'm a complete noob so correct me if I'm wrong, but SSL ...
5
votes
1answer
53 views

Why don't web templating frameworks HTML escape all data by default?

I recently discovered an XSS vulnerability in an application that uses JSP to render pages. The vulnerable code in the JSP was something like this: <td>${customer.notes}</td> It was ...
0
votes
2answers
94 views

Can I get malware just by navigating to a webpage? [duplicate]

Is going to a webpage a risk per se? If yes, how does work, and how can we defend ourselves from this? I have to constantly review websites and I get the links from job seekers (that is, I'd navigate ...
5
votes
3answers
56 views

When testing out security vulnerabilities on sites such as OWASP Projects, should we be in a secured/protected environment?

I was curious if there is any need to secure/protect ourselves when doing projects on sites like OWASP to learn about vulnerabilities or "Wargames/Challenges" such as what's posted in these links How ...
1
vote
1answer
97 views

Why does Chrome send four browsers in the user-agent header?

I am using Chrome in linux with Version 51.0.2704.63 (64-bit). I recorded a HTTP request of Chrome and here is part of the recording: User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (...
1
vote
2answers
81 views

Is Stegosploit a real concern with modern browsers?

http://stegosploit.info/ I looking into having users upload their images directly to AWS S3 to save on costs (rather than going through a traditional server and re-encoded with mozjpeg), but this ...
4
votes
1answer
50 views

Do Social Network Mobile Apps Track Your Browsing?

Facebook are known to track you even after you have logged out of your Facebook account. With mobile apps being given permission to access so much information on the devices, is it possible for ...
1
vote
1answer
123 views

Firefox security certificate issues: FUD or truth?

I was doing a little reading over at gHacks, and came across this comment attributed to Joey Spinosa regarding certificates in Firefox: These certificates are installed automatically by the ...
1
vote
2answers
101 views

XSS vectors in img src and background-image url

I'm a little confused about XSS vulnerabilities when serving img.src and background url. From what I understand, the only way to execute javascript in this case, is to use javascript protocol. Let's ...
0
votes
1answer
64 views

Virus Warning after clicking on a Google search results link

When researching a high school project on the guillotine, my daughter googled: quillotine quotes One of the top results was: topfamousquotes.com/quotes-about-guillotine/ Apparently she ...
5
votes
1answer
99 views

Is the native sandbox of Chrome and Firefox enough or would SELinux improve its security?

Chrome on Windows and Linux and Firefox on Windows are executed in a sandbox. On Linux, is the Chrome sandbox enough or would we gain security if we use SELinux to protect the Chrome execution? I ...
1
vote
1answer
65 views

XSS Page Cannot be Displayed

When I try XSS on various websites, such as inserting " onmouseover="alert(1) in a search box, I either get a message saying You don't have permission to access this page or This page cannot be ...
2
votes
5answers
76 views

Is it beneficial to run the browser from a different user account for personal devices?

On Linux, when launching the browser does it help security if I don't run it from my main user (not root, but still has my personal information in it) as follows: su FirefoxUserName -c 'firefox' ...
0
votes
1answer
22 views

How can I determine the common cryptographic suites I need to enable on my browser for common websites?

How do I determine the common cryptographic suites I need to enable on my browsers (I use IE11, Firefox/Nightly 49, Chrome 51) running on Windows for common websites, for eg, www.google.com, www.w3....
3
votes
1answer
138 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
171 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 ...
1
vote
1answer
102 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
47 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 ...
6
votes
2answers
226 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 ...
4
votes
1answer
100 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"> ...
4
votes
3answers
215 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 ...
2
votes
3answers
65 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 ...
4
votes
1answer
117 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 ...
2
votes
2answers
151 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 screenshot:...
3
votes
2answers
131 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 ...
3
votes
1answer
47 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
105 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 ...
0
votes
0answers
33 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 ...
2
votes
0answers
69 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
66 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 ...