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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CSRF cookie vs session based tokens

I will generate a CSRF token and include it in a hidden form field. When receiving the request, I will check the form value against the value either stored in the user's session or in a cookie. Is it ...
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441 views

Is it advisable to have a web browser remember login credentials?

I have a really long random password for my cellphone account and have it written down in a safe place. I only use it once a month and am considering having my browser remember it. Would there be any ...
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What are potential security risks when using an insecure wireless connection?

If someone is using an insecure wireless connection (for example a hot spot in a coffee shop) does it posse a threat even if the person is using a secure application layer protocol? What I mean by ...
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2answers
880 views

Browser based virtual machines

How would applying hypervisor (e.g. xen) principles in the development of a web browser offering isolated browser tabs (virtual machines) improve or reduce security of existing web applications (good ...
7
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2answers
211 views

What security measures does Chrome have in place to sandbox different user accounts?

Google Chrome has a feature that allows different users to use Chrome on the same computer in a completely separate space. The support page is quite light on information. Is there information ...
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Are Web Views in android secure?

"Web Views" are views that display some online content, usually a webpage within an android app. Implemented "Web Views" usually don't seem to have any kind of status bar or an address bar to confirm ...
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920 views

Have any viruses leveraging the GPU been discovered in the wild? What is the mitigation?

This news article from 2010 discusses how a GPU can be used by a virus to avoid detection by common anti-malware/anti-virus software. The idea is to obfuscate the virus payload and leverage the GPU's ...
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1answer
5k views

Do I really need all these Certificate Authorities in my browser or in my keychain?

There are lots of strange looking Certificate Authorities in my keychain as well as Firefox. I am sure they are legitimate CAs (as they are the same on my Mac and PC and other computers I checked). ...
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How to sandbox Iceweasel (Firefox) on Debian? [closed]

Are there any tools for sandboxing Iceweasel (Firefox) on Debian systems? I'm mostly interested in tools distributed by Debian. (An equally trustworthy source would be second best.) (I suppose that ...
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1answer
491 views

How do I check the code of a Chrome extension to make sure it's not stealing my info?

I've been reading more and more about just how much access browser extensions can have to your data. This is a little unsettling, so I'm curious if there is a way to Vet these extensions and make sure ...
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Web browser password management security [duplicate]

Possible Duplicate: How are browser saved passwords vulnerable? How secure are the password managers that are built into modern web browsers? Currently I use lastpass plugin as I believed ...
7
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1answer
99 views

Disable HTML5 battery features

HTML5 has a feature set relating to client battery status. It has been described as a privacy hole, as it can be used to track and identify web users. Research suggests the features can be used even ...
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1answer
710 views

Child iFrame hash verification of parent iFrame content

Consider the following scenario: Alice wishes to browse Victor's website while on the job at Initech. Victor's website is hosted on an alternative domain name system to which Initech's DNS does not ...
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5answers
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What's the real reason behind blocking the social sites? Even legitimate sites like twitter which acts as a knowledge repository?

I see some sites are blocked for IT security at schools, colleges and offices. But, why do some obvious good sites are blocked too?
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4answers
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What is a good browser for web application pen testing? [closed]

I am getting started in testing web applications, and I am having trouble verifying vulnerabilities. It seems all modern browsers have protections against things like XSS. When something like Burp ...
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3answers
18k views

Can a website still detect my real MAC address even if I use different virtual machine each time I visit the website?

Suppose I use a proxy and a different virtual machine each time I visit a particular website, will a website still be able to detect my MAC address and/or uniquely identify me? Assume that the website ...
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4answers
562 views

What abuses can an infected webpage do to me if I'm using Chrome and Flash is disabled

as a follow-up to this question Can you get virus just by visiting a website in chrome., I've read these pages: http://www.straightsectalk.com/?p=47 ...
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3answers
374 views

How safe are copies of Firefox that are on various Mozilla mirror sites?

If I end up downloading a .dmg or .exe (depending on OS) installer from some mirror site, how can I be sure that a virus or trojan or spyware has not been added? I don't see any mechanism for ...
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3answers
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How can a “server” know that what browser i'm using besides the user-agent?

How can a "webserver" know (or a sniffer between the srv<->and the client) that what browser i'm using besides the user-agent? Are there any "magic tricks"? javascript? java? How can I securely, ...
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261 views

plugins to lengthen short urls for security purposes

Came across this question What browser plugins can help us to see the actual destination of such shortened URLs?
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276 views

Detecting OAuth malicious Implementation

I am wondering how can an end-user detect a maliciously implemented OAuth whether 2-legged or 3-legged. Particularly I am interested in those cases where the consumer requester is maliciously ...
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2answers
148 views

Information Transfer Between Browsers and Tabs

Is it possible for a webpage to detect or otherwise be aware of what other tabs in the same browser, or even other open webpages in other browsers are doing or transmitting? I am well aware of ...
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3answers
2k views

Is it possible to use Greasemonkey to hack a website?

Yesterday my WordPress website got hacked. I thought I had done all necessary things to make it secure. One of my colleagues said that with Greasemonkey we can easily hack sites. Is it true? How can I ...
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1answer
2k views

What are the benefits and drawbacks of the HTML5 Keygen element?

As of January 2013, what are the potential benefits and drawbacks of the HTML5 Keygen element?
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Considering that SRP is better than SSH and Basic Auth, how can it be implemented in a website?

SRP is short for Secure Remote Password protocol, and provides a better way for passwords to be sent over the internet. I've read the information at it's Stanford University home page, the Wiki ...
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3answers
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Force a connection via SSL3 to detect POODLE vulnerability

I have been reading up on the POODLE vulnerability. From my understanding, and correct me if I am wrong, you need to allow connections to be made via SSLv3 on the server. The server I am currently ...
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4answers
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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 ...
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3answers
167 views

How to add certificate pinning for a certain domain to my web browser?

There is HPKP (HTTP Public Key Pinning) which servers use to tell the client's web browser which certificates to trust (in the future) for the domain that is being contacted. Google's Chrome and ...
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3answers
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Any browser that supports script-nonce?

I was trying to include script-nonce on my html file, but seems like none of the current browsers support it. Is anyone aware of any version of any browser that supports this functionality? I'm ...
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3answers
345 views

Are there guidelines for application design of HIPAA compliant browser applications?

This is a different twist - I'm pushing dispatch information to first responders, such as fire, police, and EMS. But they all could, potentially, include medical information and PII together. My goal ...
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1answer
1k views

Same-origin policy for file: URLs in Android browser?

When you load a file:// URL in an Android WebView or in the Android browser, what does it treat as the origin? What can the Javascript on that page access? Can it access other files in the same ...
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3answers
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Do browsers allows pages loaded on one tab to access/intercept/inject data in other tabs?

I was surprised to hear from this Reuters video that it was possible for a page loaded on one tab to access and/or inject data onto another page loaded on a different tab. TL;DW (too lazy; didn't ...
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3answers
126 views

Using Lynx on potentially malicious websites

After needing to refresh how to unpack an android ramdisk, the site I remember having good information comes up with something similar to this: Being cautious, but still wanting to get what was on ...
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1answer
662 views

How is YouTube able to identify anonymous users?

A few days ago I was searching YouTube and I noticed an "outlier" video poped up in the suggestions list. This video had nothing to do with the topic being searched, but instead it was based on a ...
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Exactly how secure is VM browsing?

I generally do all of my web browsing in a VM. I have one "safe" VM running Ubuntu that has guest services installed. I generally only go to sites I deem are trustworthy here. I also have an "unsafe" ...
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186 views

Same Origin Policy - XHR response

I know that Same Origin Policy (SOP) prevents a page/script from one origin to read response from another origin, but it does not prevents the page/script from making a XMLHttpRequest (XHR) request to ...
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1answer
728 views

Browsers silently adding trusted root certificates in Windows

When accessing https://internetbanking.caixa.gov.br (site of a well known bank in Brazil), the server returns a certificate signed by "Autoridade Certificadora Raiz Brasileira" (Brazilian Root ...
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3answers
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Is there any way I can block (or conditionally approve of) iFrames on the client side?

Given that iFrames are used in many common exploits, I'd like to conditionally disable iFrames except for sites that require it such as GMail, or MasterCard SecureCode. I also suspect the ...
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1answer
62 views

Protection against clickjacking in Firefox without installing addons?

On some of my workstations I never allow Javascript in Firefox. The NoScript addon is installed on these machines, but I would like to remove it and disable Javascript via about:config instead. ...
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3answers
202 views

find if 0-day flash bug was exploited (on a particular machine)

There have been several critical 0-day exploits in the past days/weeks in Flash alone. Nobody knows how long the 0-days have been exploited, and it is reasonable to expect that there are 0-days being ...
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2answers
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Zero-Day Exploit targeting Internet Explorer Versions 9 through 11

Few days ago, FireEye has found a vulnerability, which affects all versions of IE (even the latest 11). Microsoft has official statement regarding this issue. FireEye wrote a technical article on ...
6
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1answer
308 views

What countries have laws in place that respect Do Not Track HTTP headers or cookies?

Google offers a Chrome plugin that uses cookies to control privacy, while Firefox offers a HTTP Header to tell websites to not track the users and log the data anonymously. This obviously extends a ...
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290 views

How do I secure my advertisement space against ad overlay browser attachments?

I don't really have an issue with advertisements simply being blocked by individual users who are visiting a customers site or my own site. As an individual you have the freedom to choose not to look ...
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4answers
1k views

Is it a security risk to use an unknown web browser?

The more I read about TLS, the more I get convinced that the browser is the weakest link in the chain. I know that nobody agrees with me as there are no articles about that in Google, but it looks ...
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5answers
23k views

Using Private Browsing mode while connected to organization's network

At the workplace I use the organization's network for accessing internet (well that's the only option). I am not sure if the network administrators monitor what I browse, how frequently I access ...
5
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3answers
244 views

Could browsers improve security of stored passwords by using setuid?

On Unix-esque systems, Mozilla Firefox stores a users' preferences, web history and stored passwords in a set of files that are readible and writeable by that particular user. This makes sense: when ...
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3answers
5k views

Cookies “Secure” Flag

How do cookies' "secure" flag work to determine whether cookie itself should be included? e.g. on an HTTP (unencrypted) connection... user has no cookie yet and tries to log in; user logs in ...
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3answers
1k views

Can CSS file contain malware? [duplicate]

I know that javascript files can contain malware. However, I am not so sure about CSS files. They only affect how the page is displayed, right? I know that css files can be used for clickjacking but I ...
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332 views

Is “untrusted code” reported by DOM Snitch a vulnerability?

One of the most frequent errors that DOM Snitch finds in sites is Untrusted code. He finds it in google.com for example. Here is an output of this tool: Is it a vulnerability? Edit: This report of ...
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How to avoid leaving any local trace that I went to a website?

I want to visit a web site, but I want to ensure there is no trace left on my computer that I did so. How do I do that? This question is not concerned with anonymity or detection on the network ...