Questions tagged [web-browser]

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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Internal Website flagged as Dangerous site in Browser [on hold]

Our internal web application has a domain name a sample.antam.com.When I try to access a URL https://sample.antam.com/components/script.js the chrome browser is flagged site a Dangerous. You can even ...
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3answers
4k views

How to decide whether an eshop is safe or compromised

So, I am having this issue where I want to buy a specific wacom product but their online store eu-store.wacom.com and us-store.wacom.com, even though it is being accessed through https, does not ...
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3answers
208 views

Why is it not possible for browsers to completely detect the Phishing pages?

The browsers have some capability to detect the phishing pages, but they are not able to detect all. Why is that? Phishing still remains to be one of the most convenient way to hacking. Why is it not ...
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33 views

Url Storage, History & Personal Data

Just Curious to Know, Where my information is being stored and how long its kept for I'm running the latest version of windows 10, my main Browser being firefox developer edition 68. I clear my ...
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107 views

Why does this user's Chrome browser send ICMP type 3 packet before accessing the webserver? [closed]

Details of this user is the following: Linux; Andriod 9; SAMSUNG SM-J400F/J400FXXU3BSDD Build/PRI.180610.011) ApplewebKit/537.36 (KHTML.like Gecko) SamsungBrowser/9.4 Chrome/67.0.3396.87 Mobile ...
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5answers
5k views

Running code generated in realtime in JavaScript with eval()

Consider a front-end JavaScript application where menu items needed to be shown or hidden based on somewhat simple logic (roles that user has and some other logical state). A simple language was ...
2
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1answer
125 views

Should a browser make its own password manager? [on hold]

I'm trying to figure out if products such as Firefox's Lockwise are a superb idea or a terrible one. On the one hand, installing a third-party addon to your browser comes with inherent risks, so ...
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5answers
304 views

How do keyloggers tell it's a password? (And how to fool them.)

This question also applies to clipboard monitoring. Imagine you are planning to deploy 100,000 copies of a Windows trojan with keylogger functionality. (For the record, I'm not talking about myself ...
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2answers
70 views

is it possible to bypass cookie protection to perform a CSRF on HUAWEI HG531 v1 router?

the AJAX login script var xhr1 = new XMLHttpRequest(); xhr1.open("post", 'https://192.168.1.1/index/login.cgi', false); xhr1.send("Username=admin&Password=...
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1answer
74 views

Are there any security reasons for an organization to disable browser session restoration?

Does the browser setting to restore the previous session on startup pose any security concerns on a machine with separate logins for each user? Are there any security reasons for an organization to ...
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2answers
132 views

What can a 3rd party learn about a user through only CSS and images?

In its default settings, uMatrix content blocker allows CSS and images (JPG, PNG, etc) from all sources, unless denied by a site-specific block list. It also allows 1st party cookies, scripts, and ...
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72 views

How do I create a secure authentication service which works both for web apps and mobile apps?

As far as I am aware the best way to securely store session data on a client is to use an HTTP-only, secure cookie + HTTPS on a browser and to store a (JWT) token in a secure place for a mobile app. ...
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1answer
39 views

Having web client do requests with User's 3rd party API key?

I am trying to figure out the best way to do this. I have done some searching and all I have found is about storing API keys in a back end, nothing like my use-case where there is no back end. ...
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3answers
196 views

Why do web browsers provide websites with plain text passwords? [duplicate]

Suppose I sign up for website.com with username "John" and password "Secret". Currently the webbrowser supplies website.com with my real plain text password, and we must trust them to salt and hash ...
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17 views

Certificate Pinning with SockJS

What is the SockJS way of pinning SSL Certificates in the client side when contacting wss:// to avoid CA trust? FYI, when using modules like HTTPS or WS, we can listen to the socket event and then on ...
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1answer
93 views

How to stop other programs from reading passwords stored in my browser?

I was very surprised and alarmed to see that a free software could list passwords stored by browser in plain text. I thought that these passwords (such as the ones for email) are encrypted and can't ...
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2answers
196 views

Why is 0.0.0 an associate of 0.0.0.0? [closed]

When i redirected a single webpage to an address http://0.0.0, i also found that 0.0.0 is an alias of the network address, but since it is only 3 bytes, this seems to be strange. Why would chrome and ...
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1answer
199 views

How can Instagram cause Chrome to attempt to login and show me my username when I'm using incognito mode?

When I reach Instagram user pages while in Incognito mode, Chrome pops up a window with my non-incognito username asking whether or not to sign in. See screenshot below. Although I assume Chrome ...
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1answer
143 views

Reason for fake academic pdf files found on sites like Google Scholar? [closed]

Using my web-browser, I clicked a link on Google Scholar that led to a fake paper (in .pdf format). The pdf contained many keywords and phrases related to the research topic, possibly for search ...
-1
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1answer
75 views

How to delete browser malware? [closed]

I've got some malware so now my browser is sending requests to strange sites: Also if I click on any html element in a browser It may redirect me to unwanted pages I've tried to fix this using ...
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26 views

Personal file separation in office workstation

Background: The company I work for is SOC2 and some other Compliant. So to comply with that regulatory compliance they asked us to install SolarWinds RMM agent in our workstations (Not production ...
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199 views

“We noticed you’re browsing in private mode.” — how do they know? [duplicate]

I sometimes get messages such as the following from newspapers' web sites (Washington Post and New York Times): We noticed you’re browsing in private mode. Private browsing is permitted exclusively ...
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1answer
85 views

Inspect Element Prevention?

I was just actually wondering if there is a permanent way of preventing or disabling inspect element on client-side? Assuming with inspect element you could change values in hidden forms as well as ...
4
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2answers
181 views

Is it possible to track/save Google searches that were never submitted?

When you start typing out a google search, it lists a bunch of options to autocomplete your search. This made me wonder how that autocomplete works. Is there a cache stored somewhere in the browser? ...
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33 views

Browser Exploiting - Using SyncManager to keep Service Workers alive forever

I just read the paper "Master of Web Puppets: Abusing Web Browsers for Persistent and Stealthy Computation". The authors claim to use the SyncManager Interface in order to keep Service Workers alive ...
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2answers
94 views

CDN change for “enhanced security”? (now uses cookies)

For the past few months, I've been unable to continue a particular course on udemy. I can access all other video courses accept that particular course and their support has answered "We recently ...
3
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1answer
84 views

What mechanism does Firefox use to remember the in-session logins, after entering the Master Password?

After I have entered my Master Password, does Firefox decrypt all the logins and store them somewhere? Or does it store the Master Password itself? Is the in-session period (more) vulnerable to attack?...
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1answer
92 views

How to hide my platform from a browser to keep my privacy? [duplicate]

I just visited https://amiunique.org/fp in order to try to understand what makes a web page realize what platform it is running on, aside from User-Agent request header. So I learned about window....
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2answers
111 views

Is LocalStorage in web browsers safe enough to store passwords?

I currently have a system I'm building where users can enter an email address and password into my login page, and if they click the signup button after doing that, it stores that data in LocalStorage,...
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1answer
164 views

How can I inject cookie from Wireshark into a browser sesson [duplicate]

For education and research purpose, I need to inject a cookie value into my browser to allow me login indirectly (without entering the user name and password). I collected traffic during a login ...
1
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1answer
83 views

Is using a web service in a browser safer than running it natively installed? [closed]

let's take a theoretical app that has both an installable version and a web version. I use it via my web browser or I can install the app. What are the safety considerations for the host operating ...
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2answers
108 views

Does HTTP:// to HTTPS:// redirection means strict HTTPS from server

when I try to connect to some websites using http:// (notice the absence of s) , my client end up with https://. I use python requests for this purpose, which simulate a client behavior. It performs ...
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1answer
78 views

How to check if all PC programs are using the VPN's IP?

With browsers you can go to websites that specifically check your IP to see if your VPN's IP is there. But how do you check if all the other programs or applications on your computer are going through ...
2
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1answer
103 views

Is it safe to let the user name an object key in JavaScript?

Recently I found a piece of code that takes input from the url. The input then get's saved into a javascript object: https://website.com/?foo=bar var x = {"foo": "bar"}; While the value doesn't ...
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0answers
313 views

What “stability and security will suffer” by using a browser with the --no-sandbox flag?

Starting Brave browser (on linux manjaro) shows a “You are using an unsupported command-line flag: --no-sandbox. Stability and security will suffer.” message. Reading the support forums it seems that ...
4
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2answers
264 views

Why were hyperlink auditing pings used for DDoS attacks and not any other requests?

A few days ago this new story has been published: Researchers have found that the HTML feature called hyperlink auditing, or pings, is being used to perform DDoS attacks against various sites. This ...
65
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4answers
9k views

Is an up-to-date browser secure on an out-of-date OS?

Windows 7 support will end on January 14, 2020. Assuming that after that day I still use an updated browser, is it true that I'm still safe? Can it "patch" the OS-based security holes? Minor question:...
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64 views

Is JIT-compiler required for JIT-ROP attack?

I have been studying up on the concept of Just-in-Time (JIT) ROP attack (https://cs.unc.edu/~fabian/papers/oakland2013.pdf), and came across this question which I have not been able to find the ...
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1answer
174 views

How can Opera browser access my sessions on Google Chrome?

I just installed Opera browser v60 (i.e. Reborn 3) on Windows 10. I noticed that it has automatically (without my consent and permission) taken all my bookmarks in Google Chrome and added to the ...
3
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1answer
72 views

If the user agent contains information that could potentially be abused, why would every browser send it to every website?

As far as I've seen, every browser I use have a long User-Agent HTTP header that is as detailed as that it contains specific browser versions (or can be used to accurately deduce browser version, ...
10
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1answer
225 views

How do HTML5 DRM addons protect their output?

HTML5 has a DRM framework Encrypted Media Extensions (EME), that allows DRM companies to create content decryption modules (CDM) to decrypt DRM protected content. Browsers should use a sandbox to run ...
2
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0answers
66 views

Persistent HTML form data across sessions

I'm currently testing an application which appears to have a somewhat persistent HTML form data storage, yet I don't understand how. UserA logs in Fills form with custom data Logs out before sending ...
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1answer
76 views

How to defend myself against potential malicious browser add-ons?

So previously I asked a question about what type of private data can addons extract from my browser : Can a malicious add-on access internet history and such in Chrome/Firefox? and it turns out if ...
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0answers
52 views

Embeddable 3rd party web tools security against stealing the key

We are building a website and we are using plenty of third-party tools that basically give you an HTML script tag and ask you to place it into your index.html. A few examples of such tools are: ...
19
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2answers
3k views

Can a malicious add-on access internet history and such in Chrome/Firefox?

How does Chrome/Firefox make sure add-ons are safe? Do they have any protection against a malicious add-on? How much access can add-ons have? Can they access internet history or maybe even cookies ...
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1answer
112 views

Why does Amazon verify a TLS certificate?

Show site information, then Connection for https://support.mozilla.org indicates Verified by: Amazon Why is this? Is Amazon spying on me?
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5answers
320 views

Is my Google Drive still secure if Chrome was heavily compromised?

I use an Apple eMac desktop computer. I formerly used Safari as my main browser. I migrated to Chrome as it is integrated with Google products. I use Google Drive very extensively as my main ...
2
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2answers
40 views

Insecure Direct Object Reference - Change email from client end

I am testing a website that has "Forgot my password" functionality. If user clicks that, his email address will be displayed as a hyperlink. If that is clicked, an email to reset password will be ...
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1answer
62 views

Virtualized or Container (Remote) Based Browser Isolation is more secure?

There obvious costs differences between them but I am not sure from a security perspective which of them considered to be more secure.
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1answer
72 views

Will browser isolation solution protect our enterprise from Flash and JavaScript exploits and fileless malware?

Since we didn't see any pentest done to bypass on such solution, we don't really know if it worth purchasing such type of solution. Will this really protect us from Flash and JavaScript exploits, ...