Tagged Questions

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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2
votes
2answers
485 views

Can cookies reveal my email address?

When I visit livescore.com, ten seconds later I receive marketing emails from gambling companies. If I don't visit this site, I don't receive these emails. Similar things happen when I visit Twitter ...
1
vote
3answers
145 views

Where do suspect requests from logged-in users to my website come from?

I have an ASP.Net MVC 4 web application that is hosted on a Windows 2008 server. The application is secured by a custom ASP.Net membership provider. Only users who are granted permission by the admin ...
2
votes
1answer
334 views

Can a webpage read another page's cookies?

I was listening to Pandora as I logged in here, and the next commercial was about InfoSec. That set me wondering as to whether that was a coincidence (probably) or if they knew somehow. To make a long ...
1
vote
2answers
352 views

Extracting Facebook ID or E-Mail from Browser History

While i was looking at my browser history i noticed there has been a facebook login from my computer, there are some facebook related messaging and profile links in my browser history (chrome). The ...
1
vote
1answer
68 views

How can I view the contents of a web page without running malicious code? [closed]

I received a strange email which has some strange URL in it. I would like to know what is "behind" the url, but without the risk of running anything malicious. How can see the contents of the URL, ...
1
vote
1answer
164 views

What are the implications of storing sensitive data in bookmarklets?

While discussing alternatives for asking the browser to remember your password, one guy suggested using a bookmarklet to store users' credentials. The original answer is in portuguese, but I'll ...
15
votes
1answer
573 views

Does Gibson's fingerprinting service add much additional security?

I just read this post and it proposes a method of storing SSL fingerprints online so that you can double check that your certificates have not been tampered with. But is it really relevant or useful? ...
40
votes
4answers
9k views

Should websites be allowed to disable autocomplete on forms or fields?

Currently, there is an HTML form/input attribute called autocomplete, which, when set to off, disables autocomplete/autofill for that form or element. Some banks seem to use this to prevent password ...
3
votes
1answer
177 views

Danger of hidden html form uploading users local files without their knowledge

Is there a danger that a webpage could have a hidden form with a file upload input and js script that would try and take a random guesses at files on a users system and attach them to the form and ...
0
votes
2answers
461 views

What information can be gained from an Email Header?

What information is present in an Email Header that can be used to track a sent mail? For example, are some of these present? Web Browser used? Operating system Type of Network (broadband/dial up)? ...
0
votes
1answer
195 views

Java Drive By & Stub - Explanation [closed]

I have been trying to make some extensions for chrome lately to block some unwanted stuff. I have also been searching for quite some time to find what a JDB does.So , the applet downloads a file , ...
1
vote
2answers
228 views

Anomaly detection in HTTP REFERER

I'm trying to put some anomoly detection in place and I'm looking at referrer data (I know that this is optional, and can be fudged in some circumstances). But I'm seeing too many cases of what I ...
0
votes
1answer
425 views

What is the full extent of information about my computer that a website can get?

I need to know what all information a random website can get from my computer, and whether a website can tell which of my two computers on the same router I'm using. I know websites can determine ...
2
votes
1answer
98 views

Chrome inline JavaScript string interpreatation

If you have an HTML file that contains the following code : <!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> </head> ...
4
votes
3answers
504 views

Is Chrome in Metro Mode more secure than Chrome in Desktop Mode?

With Windows 8, Microsoft introduces the Metro Apps which run in a sandbox environment, and therefore should be more secure. I would be interested to know if this higher security that the metro apps ...
3
votes
2answers
1k views

UTF-7 XSS attacks in modern browsers

I've recently read about utf-7 XSS-attacks (i.e. Ned Batchelders article at http://nedbatchelder.com/blog/200704/xss_with_utf7.html) but could not get any UTF-7 attack to work in modern browsers. (I ...
11
votes
6answers
526 views

Can a website determine what OS or webbrowser a visitor is using if the useragent is blanked/changed?

Assume that a visitor to a website has changed his useragent to something like the following, but he's using linux: Mozilla/5.0 (Windows NT 6.2; rv:20.0) Gecko/20121202 Firefox/20.0 Assume that the ...
1
vote
0answers
20 views

Is Webgoat's HTTP Splitting Attack corrupt? [duplicate]

This link describes my problem better: https://code.google.com/p/webgoat/issues/detail?id=42 I was doing the HTTP Splitting exercise in WebGoat. In this exercise, when you send a malformed URL, you ...
1
vote
3answers
178 views

Are Modern Servers susceptible to HTTP Splitting Attacks

Note: I know how HTTP Splitting works. Note 2: I am not working in WebGoat. I am trying to make this on my own. I am trying to imitate the HTTP Splitting attack on my machine. For that I wrote this ...
3
votes
2answers
573 views

Pop-ups in Private Browsing?

The new Firefox private browsing mode allows for both non/private browsing windows at the same time. So if a website pops up a new window (which will be in non private mode) can it read stored data? ...
3
votes
2answers
396 views

When using private browsing can a website view data stored before private browsing was turned on?

If a browser has been used to visit a few sites and has active logins and then the user turns on private browsing, can the sites still access data such as cookies and cached files that were created ...
1
vote
0answers
158 views

Suggestions on how to capture network connections/traffic for determining browser/SSL versions?

I've started thinking about how to approach analyzing my network traffic for information relating to SSL and browser usage for my web server farm. I also suspect there are some shadow (legacy, ...
1
vote
1answer
135 views

Do any tracking networks or ad networks not use JavaScript and only track based on IP address? If yes, how can they be prevented?

Are there any websites that collectively track one computer based on its IP address alone? Browser extensions such as Ad block plus, Do Not Track Plus and Ghostery modify the client side script but is ...
3
votes
1answer
337 views

Can a site I browse in private browsing mode tell if I visited it in regular mode before?

I've noticed when updating a blog, that sometimes refreshing the page won't actually fetch it again, because it is still in the cache. Now, even when I open it in incognito in that same browser(say ...
-1
votes
1answer
118 views

Would PGP/GPG have been a better choice than SSL for browsers and http servers to encrypt traffic? [closed]

I was curious recently when I heard that SSL had supposedly been broken by a certain rogue government agency, why SSL was chosen in the first place. Could it be that PGP would have been a more secure ...
9
votes
2answers
240 views

Why do some certificates specifically identify a corporation and most don't?

Looking at a handful of websites that allow for/require HTTPS, I realized that the certificate for a few of them specifically identifies the owning corporation, but some (most) don't. What's the ...
0
votes
2answers
94 views

Is there any any security threat due to advertisements?

I was working on my localhost in my computer but I was connected to internet. Recently I downloaded a few music files and since then advertisements are getting popping into my browser through which I ...
6
votes
1answer
529 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 ...
17
votes
1answer
7k 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 ...
1
vote
1answer
2k views

Sending Client Certificate to Server

I have a simple question. Is a web browser sends client certificate to the web server on demand(means web server is configured for client authentication and demand the client certificate) or just ...
2
votes
1answer
137 views

I don't quite understand the principle of “use after free” and CVE-2010-1119

I am a rookie hacker studying android vulnerabilities. My partner and I are studying "CVE-2010-1119". Unfortunately there does not appear to be enough information online. Could anyone please help me ...
2
votes
1answer
3k views

Is it safe to give an Oauth token to client side javascript so it can directly make requests to a server?

I currently have a simple backbone.js application served from my domain (example.com), which is provided an Oauth token. Specifically, I pass the Oauth token through my page template into the ...
2
votes
1answer
128 views

Does Internet Explorer handle Extended Validation properly

I'm reading about Extended Validation (EV) certificates and have a few questions. From what I understand, EV allows domain owners to pay extra for a especially trusted certificate (that the browser ...
0
votes
2answers
193 views

Can Tor browser bundle be attacked like this?

When using the Tor browser bundle, you load the check.torproject.org on start. It tells you when there is a security update to downloads, and let's you click a link to get it. The way for users to ...
0
votes
1answer
107 views

How to investigate this anomaly?

According to the IT managers, this problem is neither at the server nor at the client but is suspected to be somewhere inbetween e.g. some DNS server that has been infected. Do you recognize this ...
0
votes
1answer
916 views

How do Java applet exploits work? [closed]

Browsers store web pages in a local cache on the client's machine. How does a hostile Java applet exploit this information to gain more privileges than it is entitled to? My understanding is that a ...
1
vote
2answers
179 views

How to restrict access to unwanted sites?

I use Ubuntu 13.10. I tried to used OpenDNS to restrict some websites. Unfortunately, I couldn't do that. I use AirStream 1200 USB modem to access WiMax internet. OpenDNS setting didn't work for me at ...
1
vote
1answer
199 views

How to check whether a link is safe or not? [closed]

I've been working on a task to find threats in a social network called Skyrock. For which, I've managed to retrieve a significant amount of URLs by crawling various user profiles and parsing the data ...
17
votes
5answers
2k views

Security of an initial redirection from http://example.com to https://example.com

Suppose that http://example.com/<foo> systematically redirects to https://example.com/<foo>. I enter http://example.com in my browser's URL bar, and I see a page load and the URL bar now ...
3
votes
1answer
110 views

What's malicious about file links?

Why did Chrome and Firefox disallow file:/// links? I can imagine an iframe opening a local resource, but which resource is the scary one? They could have just disabled iframes to file:///? Ajax ...
0
votes
0answers
21 views

Error 150 (net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN): The server's certificate appears to be a forgery [duplicate]

Can you tell me shortly how to fix this problem in Chrome? Error 150 (net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN): The server's certificate appears to be a forgery
1
vote
1answer
4k views

Efficacy of Chrome incognito mode

I am curious about the true efficacy of the browser private mode. I did a bit of googling and stumbled upon the following page. ...
1
vote
1answer
235 views

Export ciphers prevalance

I would like to clarify the consequences of not supporting export ciphers. When I run a qualys ssl test on ebay.com, I notice that the following cipher suites are supported. ...
0
votes
2answers
198 views

Can you trust the URL shown when 'hovering' on a link? [duplicate]

When using a modern web browser, if you hover on a link, the browser will show you the link in a little display on the bottom left corner of the browser screen. Can I trust this? Can this display be ...
2
votes
3answers
216 views

Do on-demand SSL certificates exist?

A few days ago, I visited an SSL protected website. Since Safari complained about the SSL-certificate, I did a short inspection: The certificate was issued by GoDaddy in just the minute I ...
2
votes
1answer
598 views

Different SSL states as seen by Safari, Chrome and Firefox

Today, I visited some sites of the German DHL group. While Chrome and Safari complain about an invalid certificate of Firefox accepts it. Which one is right, which one is wrong? Which decision ...
80
votes
8answers
6k views

Do we need to logout of webapps?

A quick Google search doesn't reveal whether it is important to logout of webapps (online banking, Amazon, Facebook, etc.), or if I am safe just closing the tab or browser. I am sure I heard on some ...
0
votes
1answer
420 views

Does google use browser fingerprinting? [closed]

I'm wondering whether besides collecting the typical tracking information (IP + cookies) google has already implemented browser fingerprinting? I read sometime not long ago about it being a ...
0
votes
1answer
96 views

Browser Extension to show how your session is being shared

A while back I came across a browser extension (was available for Firefox and Chrome, maybe others) that showed you through a graphical 'node' interface how your browser session was shared with so ...
0
votes
1answer
973 views

Google Chrome - save usernames NOT passwords [closed]

I've scoured the settings page and googled this to no avail. I want Chrome to stop saving my passwords BUT keep saving usernames/email. Is that possible? All I seem to be able to do is disable ...