Questions tagged [fingerprinting]

Gaining information about current version of an application or operating system in order to find a vulnerability.

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136 views

How to fingerprint Windows 10 reliably?

Recently, I have been practicing penetration testing and I have come to a standstill when trying to fingerprint the OS for a Windows 10 target with nmap. For the most part, I'm not able to identify ...
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142 views

Antivirus and malware fingerprints

I´m a student in IT security and I would like to know how the malware fingerprints work in common AntiVirus. I understand that when a malware is detected it's because the binary fingerprint is known ...
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108 views

Do I have to do any setup if I want to run a VPN with the Tor browser bundle?

I know there will be some votes against this but I want to run a VPN alongside the Tor browser. Can I just open the VPN program, connect to the VPN provider, then open the Tor browser and use it as ...
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1answer
43 views

Fingerprinting Windows Architecture from a file on remote system

This is a post following up with this one. Similar situation as the above post - I'd like to know if there's a way to find out the architecture (x86 or x64) of a windows system from a file on a ...
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Is perceptual hashing feasible to identify users [closed]

I have been shadow-banned on an app (Tinder) and I cannot get around it. I have been doing some background research into how they are able to identify me and have come across device fingerprinting (I ...
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1answer
370 views

Will two smartphones (identical hardware and software) generate the same canvas fingerprint?

When using Canvas Fingerprint (like on this website) to distinguish users, does two smartphones (same model, same OS version, and no browser/plugin customization) will share the same fingerprint?
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190 views

How to defend against adblock detection/adblock subscription leaks?

Is there a best practice (or useful extension) for defending against adblock fingerprinting techniques? I'm not asking about how to bypass adblock detection as such, but rather how one might appear ...
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1answer
138 views

How os fingerprinting works and how to prevent it in browser? [duplicate]

For privacy I always changed my useragent of browser regularly and it used to work. But lately changing useragent alone in browser dosen't prevent os fingerprinting. Tools like https://browserleaks....
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1answer
353 views

How to mitigate the consequences of being tracked by fingerprint2.js?

A webpage of a bank, where I get redirected to make a payment for my ticket, uses fingerprint2.js. The webpage doesn't work at all when I'm using AdBlock extension in my browser and fingerprint2.js ...
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320 views

How does Cloudflare track their client? Tor is not a workaround

I mirrored a ecommerce site using wget. This site seems to use Cloudflare to handle their web traffic. What's interesting is that after 90 % or so of the mirroring was done, wget started to produce/...
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1answer
129 views

Is there a way to find out what information website queries about us? [closed]

What tool or software should I look for to find out what "fingerprinting" data a website is tracking? Like, I want to know, if website looks for a cache and/or fonts installed in system, or Canval, ...
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1answer
362 views

Will disabling WebGL make me more or less unique on the internet?

I have wondered whether disabling WebGL will make me more or less unique, I fiddled around with https://panopticlick.eff.org/ to see what would happen. If I keep it enabled I am 1/205.66, with me ...
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What is ScriptSafe's “Client Rectangles” and what information does it leak?

Just wondering how this one affects the privacy and security because it breaks a lot of sites displaying images for example.
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636 views

Does multi-factor authentication make tracking/fingerprinting easier?

Is multi-factor authentication a privacy risk? Does it make tracking/fingerprinting easier? It was seem so because whoever is accepting the OTP could track and record every OTP request and metadata ...
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423 views

What “timing attacks” could websites perform using last modified dates of files?

https://developer.mozilla.org/en-US/docs/Web/API/File/lastModified describes the .lastModified property of a File object in JavaScript (usually created when a user selects a file via a HTML <input ...
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99 views

How can I fingerprint Yii framework version?

I am currently testing in a black box manner an application written in Yii framework. How can I fingerprint Yii framework exact version? It's there a public file or function that I can use to perform ...
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1answer
169 views

How can Telegram find my phone number on iOS 11 after uninstall?

I wanted to sign in Telegram on my iPod Touch running iOS 11 with another account. I deleted the app and install it again. On the sign up screen Telegram filled the phone number field with the number ...
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1answer
412 views

How reliable is using Fingerprint sensor (iPhone/Android) for identity approval?

What I'm trying to achieve is a confirmation of transaction (not payment) with a fingerprint sensor. Pretty much like Google does in its Play store: Chose a product, click pay Approve your choice ...
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1answer
134 views

Re-run nmap OS fingerprint match with existing subject fingerprint

I have a collection of nmap subject fingerprints (described here), but have updated my local (private) reference fingerprint database since they were collected. Is there any existing way to re-match ...
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183 views

Digital Camera Fingerprinting via Instagram and Snapchat

I was going through one of the articles on camera fingerprinting that says that using most basic Instagram or Snapchat filters will not get rid of the camera fingerprint. However, changing the ...
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1answer
196 views

How does a keypair fingerprint work?

Setting up an AWS instance with the instructions here, I create a public/private keypair. I understand the public key fingerprint is usually just a hash of the public key. However, the instructions ...
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2answers
867 views

How do exploit kits enumerate or fingerprint their targets?

My current understanding is that an exploit kit will fingerprint (gather information on) a system, check those details against a database of vulnerabilities and then attempt to use the relevant ...
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1answer
679 views

methods to check https certificates

I have a basic question regarding fingerprints of https certificates, the specific case I wanted to check being my online banking service. With firefox on linux, I can visit the specific web page and ...
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92 views

Can websites collect browser data without using http requests? [closed]

Is it possible for a website to collect data such as the plugins/fonts installed without sending it thought http requests? If so, is there any plugin for any browser that tells the user what type of ...
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50 views

Flow watermarking / fingerprinting

It is known that flows can quite easily be fingerprinted and watermarked [1] (usually observing or adding jitter to packets). Let's say someone added a watermark to my flow which then passes through a ...
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1answer
271 views

WAFDetect Extension of Burpsuite

I am creating a list of tools for waf fingerprinting. I have installed waf-detect plugin from bapp store in burpsuite. This plugin runs in the background and create passive scanner issues when WAF ...
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1answer
44 views

Process of finding device hostnames on LAN

Is there a reliable way to retrieve hostnames from LAN devices without having to install extra software or performing nmap-style OS fingerprinting? I'm ideally looking for either a protocol that has ...
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2answers
697 views

Why do browsers expose installed fonts?

It's a well known fact (in the privacy-aware community, at least), that a factor quite used for tracking is the list of installed fonts, which browsers seem to expose, and trackers exploit this. ...
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1answer
246 views

How are Google always identifying me? [closed]

I'm trying to create multiple Google accounts Here's my setup: I use Firefox with the FoxyProxy plugin and a bunch of IP's. I use the Firefox Random Agent Spoofer plugin, with the following ...
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1answer
118 views

Correlation between server request and response time and built-in php functions

Is there any way to identify which built-in PHP function is used in some given script only by sending a request and receiving a response from the remote server? To keep it simple we might assume that ...
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1answer
1k views

Guessing PHP version and info from phpinfo using black box analysis

Intro I'm currently experimenting with PHP black box analysis and couldn't find any useful information. There are some approaches how to determine e.g. Apache version, but for PHP it seems that ...
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2answers
244 views

WAF - How to tell what automated tool is causing alerts

When a WAF is throwing alerts your way is there a tool or way to fingerprint the the script or automated tool the potential attacker is using against the site? What techniques can I use to narrow ...
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119 views

spoof OS name in ubuntu for nmap scans [duplicate]

How can I spoof the OS CPE that is reported by nmap? This is my CPE: OS CPE: cpe:/o:linux:linux_kernel:3 when scanning with nmap leakage all my OS properties. But I need to change the original ...
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1answer
112 views

How can one avoid having their online presence traced back to an identifiable network?

I've been reading up on browser fingerprinting and device identification. Today I'd like to focus on the network side of things. Assuming I was interacting with a website on multiple occasions, but ...
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2answers
645 views

Fingerprinting servers behind firewall

I am currently testing some servers that are present behind a firewall. During the scanning I am unable identify which ports are open except port 80. I have used various switches for Nmap only -Pn ...
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2answers
506 views

What's the best way to salt a useragent string?

What would be the best way to salt a periodically changing useragent string, so as to avert browser fingerprinting? For example, a useragent string like this: Mozilla/5.0 (X11; Linux x86_64; rv:50....
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1answer
99 views

Does setting DNT make one a target to extra tracking?

Does adding the "Do Not Track" (DNT) to HTTP headers make one a target for extra tracking, such as in-depth browser fingerprinting?
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1answer
314 views

Why does Tor Browser disable Javascript optimizations?

The security level slider in Tor Browser disables various Javascript optimizations. How can the presence or absence of optimizations be a browser tracking method?
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1answer
341 views

Extracting as much information from a browser request as possible?

I am currently working on project that involves identifying spammers who are creating fake accounts on my site. I am interested to know what type of information I would be able to extract. First of ...
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21 views

Why do phones only allow for 5 fingerprints? [duplicate]

Why do mobile phones only allow for 5 fingerprints for the fingerprint sensor? Is this for security reasons? I am guessing that this was this limitations was for security, opposed to a design choice. ...
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0answers
110 views

Are there successors to httprecon [closed]

httprecon appears to be dead, the latest update per changelog is from 2009. Are there any successors?
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404 views

Unique(ish) OS / hardware fingerprinting

In the manners of Browser fingerprinting, is it possible to obtain a somewhat unique fingerprint for the device OS and hardware (a 1 out 1000 entropy score would be good enough for my needs) Edit: ...
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1answer
191 views

Adobe Flash Inside Whonix Workstation

It's known that Flash can give away your real IP address to web services if you use it in Tor Browser directly run by your computers OS. But what if you use flash inside a Whonix workstation (either ...
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2answers
1k views

What unique fingerprinting information can an iOS 10 app collect?

As a follow-on to these questions: What unique fingerprinting information can an iOS7 app collect? What unique device fingerprinting information can an iOS8 app collect? What unique device ...
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1answer
898 views

How to fingerprint a server with Netcat?

I am trying to follow the OWASP test guide on a Kali Linux machine. As the first step in "Information Gathering" I am trying to fingerprint the server. The guide instructs me to use NetCat: $ nc www....
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1answer
402 views

Passive fingerprinting of DNS client

Given a network trace that includes DNS request packets, is it possible to infer or guess which DNS client send those requests? In other words, consider a network monitoring box that can see all the ...
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2answers
106 views

Is exposing the default plesk page dangerous?

Is exposing the default plesk page on an IP dangerous? I can imagine it is somehow usable for fingerprinting a version maybe. But is it dangerous anyhow?
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3k views

How to change system fonts list in Firefox to avoid browser fingerprinting? [closed]

I found solution for most of types of browser fingerprints: IP - ZenMate Firefox VPN Add-on Canvas - CanvasBlocker Add-on Timezone - I use AutoIt to change Windows Timezone List of PlugIns - I just ...
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1answer
42 views

Is there a way to guess a shared server's control panel's version?

I am performing research on the security of control panel software for shared hosting providers, and I am interested to know if there is a way to identify the version of the control panel software ...
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3answers
2k 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 ...