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The Hacker News - Cybersecurity News and Analysis: browser hacking

Privacy Bug in Brave Browser Exposes Dark-Web Browsing History of Its Users

Privacy Bug in Brave Browser Exposes Dark-Web Browsing History of Its Users

February 20, 2021Ravie Lakshmanan
Brave has fixed a privacy issue in its browser that sent queries for .onion domains to public internet DNS resolvers rather than routing them through Tor nodes, thus exposing users' visits to dark web websites. The bug was addressed in a hotfix  release  (V1.20.108) made available yesterday. Brave ships with a built-in feature called " Private Window with Tor " that integrates the  Tor  anonymity network into the browser, allowing users to access .onion websites, which are hosted on the darknet, without revealing the IP address information to internet service providers (ISPs), Wi-Fi network providers, and the websites themselves. The feature was added in  June 2018 . This is achieved by relaying users' requests for an onion URL through a network of volunteer-run Tor nodes. At the same time, it's worth noting that the feature uses Tor just as a proxy and does not implement most of the privacy protections offered by Tor Browser. But according to a report first
Watch Out! Adrozek Malware Hijacking Chrome, Firefox, Edge, Yandex Browsers

Watch Out! Adrozek Malware Hijacking Chrome, Firefox, Edge, Yandex Browsers

December 11, 2020Ravie Lakshmanan
Microsoft on Thursday took the wraps off an ongoing campaign impacting popular web browsers that stealthily injects malware-infested ads into search results to earn money via affiliate advertising. "Adrozek," as it's called by the Microsoft 365 Defender Research Team, employs an "expansive, dynamic attacker infrastructure" consisting of 159 unique domains, each of which hosts an average of 17,300 unique URLs, which in turn host more than 15,300 unique malware samples. The campaign — which impacts Microsoft Edge, Google Chrome, Yandex Browser, and Mozilla Firefox browsers on Windows — aims to insert additional, unauthorized ads on top of legitimate ads displayed on search engine results pages, leading users to click on these ads inadvertently. Microsoft said the persistent browser modifier malware has been observed since May this year, with over 30,000 devices affected every day at its peak in August. "Cybercriminals abusing affiliate programs is not
Popular Mobile Browsers Found Vulnerable To Address Bar Spoofing Attacks

Popular Mobile Browsers Found Vulnerable To Address Bar Spoofing Attacks

October 21, 2020Ravie Lakshmanan
Graphic for illustration Cybersecurity researchers on Tuesday  disclosed details  about an address bar spoofing vulnerability affecting multiple mobile browsers, such as Apple Safari and Opera Touch, leaving the door open for spear-phishing attacks and delivering malware. Other impacted browsers include UCWeb, Yandex Browser, Bolt Browser, and RITS Browser. The flaws were discovered by Pakistani security researcher Rafay Baloch in the summer of 2020 and jointly reported by Baloch and cybersecurity firm  Rapid7  in August before they were addressed by the browser makers over the past few weeks. UCWeb and Bolt Browser remain unpatched as yet, while Opera Mini is expected to receive a fix on November 11, 2020. The issue stems from using malicious executable JavaScript code in an arbitrary website to force the browser to update the address bar while the page is still loading to another address of the attacker's choice. Original PoC demo "The vulnerability occurs due to Saf
Firefox Blocks Inline and Eval JavaScript on Internal Pages to Prevent Injection Attacks

Firefox Blocks Inline and Eval JavaScript on Internal Pages to Prevent Injection Attacks

October 15, 2019Swati Khandelwal
In an effort to mitigate a large class of potential cross-site scripting issues in Firefox, Mozilla has blocked execution of all inline scripts and potentially dangerous eval-like functions for built-in "about: pages" that are the gateway to sensitive preferences, settings, and statics of the browser. Firefox browser has 45 such internal locally-hosted about pages , some of which are listed below that you might have noticed or used at some point: about:config — panel to modify Firefox preferences and critical settings. about:downloads — your recent downloads done within Firefox. about:memory — shows the memory usage of Firefox. about:newtab — the default new tab page. about:plugins — lists all your plugins as well as other useful information. about:privatebrowsing — open a new private window. about:networking — displays networking information. To be noted, these changes do not affect how websites from the Internet work on the Firefox browser, but going forwar
Two Widely Used Ad Blocker Extensions for Chrome Caught in Ad Fraud Scheme

Two Widely Used Ad Blocker Extensions for Chrome Caught in Ad Fraud Scheme

September 20, 2019Swati Khandelwal
Two widely used Adblocker Google Chrome extensions , posing as the original — AdBlock and uBlock Origin — extensions on Chrome Web Store, have been caught stuffing cookies in the web browser of millions of users to generate affiliate income from referral schemes fraudulently. There's no doubt web extensions add a lot of useful features to web browsers, making your online experience great and aiding productivity, but at the same time, they also pose huge threats to both your privacy and security. Being the most over-sighted weakest link in the browser security model, extensions sit between the browser application and the Internet — from where they look for the websites you visit and subsequently can intercept, modify, and block any requests, based on the functionalities they have been designed for. Apart from the extensions which are purposely created with malicious intent , in recent years we have also seen some of the most popular legitimate Chrome and Firefox extensions g
Google Announces 5 Major Security Updates for Chrome Extensions

Google Announces 5 Major Security Updates for Chrome Extensions

October 02, 2018Mohit Kumar
Google has made several new announcements for its Chrome Web Store that aims at making Chrome extensions more secure and transparent to its users. Over a couple of years, we have seen a significant rise in malicious extensions that appear to offer useful functionalities, while running hidden malicious scripts in the background without the user's knowledge. However, the best part is that Google is aware of the issues and has proactively been working to change the way its Chrome web browser handles extensions. Earlier this year, Google banned extensions using cryptocurrency mining scripts and then in June, the company also disabled inline installation of Chrome extensions completely. The company has also been using machine learning technologies to detect and block malicious extensions. To take a step further, Google announced Monday five major changes that give users more control over certain permissions, enforces security measures, as well as makes the ecosystem more t
Cryptocurrency Mining Scripts Now Run Even After You Close Your Browser

Cryptocurrency Mining Scripts Now Run Even After You Close Your Browser

November 30, 2017Swati Khandelwal
Some websites have found using a simple yet effective technique to keep their cryptocurrency mining javascript secretly running in the background even when you close your web browser. Due to the recent surge in cryptocurrency prices, hackers and even legitimate website administrators are increasingly using JavaScript-based cryptocurrency miners to monetize by levying the CPU power of their visitor's PC to mine Bitcoin or other cryptocurrencies. After the world's most popular torrent download website, The Pirate Bay , caught secretly  using Coinhive , a browser-based cryptocurrency miner service, on its site last month, thousands of other websites also started using the service as an alternative monetization model to banner ads. However, websites using such crypto-miner services can mine cryptocurrencies as long as you're on their site. Once you close the browser window, they lost access to your processor and associated resources, which eventually stops mining. Un
How One Photo Could Have Hacked Your WhatsApp and Telegram Accounts

How One Photo Could Have Hacked Your WhatsApp and Telegram Accounts

March 15, 2017Swati Khandelwal
Next time when someone sends you a photo of a cute cat or a hot chick on WhatsApp or Telegram then be careful before you click on the image to view — it might hack your account within seconds. A new security vulnerability has recently been patched by two popular end-to-end encrypted messaging services — WhatsApp and Telegram — that could have allowed hackers to completely take over user account just by having a user simply click on a picture. The hack only affected the browser-based versions of WhatsApp and Telegram, so users relying on the mobile apps are not vulnerable to the attack. According to Checkpoint security researchers, the vulnerability resided in the way both messaging services process images and multimedia files without verifying that they might have hidden malicious code inside. For exploiting the flaw, all an attacker needed to do was sending the malicious code hidden within an innocent-looking image. Once the victim clicked on the picture, the attacker coul
Browser AutoFill Feature Can Leak Your Personal Information to Hackers

Browser AutoFill Feature Can Leak Your Personal Information to Hackers

January 11, 2017Swati Khandelwal
Just like most of you, I too really hate filling out web forms, especially on mobile devices. To help make this whole process faster, Google Chrome and other major browsers offer "Autofill" feature that automatically fills out web form based on data you have previously entered in similar fields. However, it turns out that an attacker can use this autofill feature against you and trick you into spilling your private information to hackers or malicious third parties. Finnish web developer and whitehat hacker Viljami Kuosmanen published a demo on GitHub that shows how an attacker could take advantage of the autofill feature provided by most browsers, plugins, and tools such as Password Managers. Although, this trick was first discovered by Ricardo Martin Rodriguez , Security Analyst at ElevenPaths, in the year 2013, but it seems Google haven't done anything to address weakness in Autofill feature. The proof-of-concept demo website consists of a simple online
Hackers WIN $1 Million Bounty for Remotely Hacking latest iOS 9 iPhone

Hackers WIN $1 Million Bounty for Remotely Hacking latest iOS 9 iPhone

November 02, 2015Swati Khandelwal
Well, here's some terrible news for all Apple iOS users… Someone just found an iOS zero-day vulnerability that could allow an attacker to remotely hack your iPhone running the latest version of iOS, i.e. iOS 9. Yes, an unknown group of hackers has sold a zero-day vulnerability to Zerodium , a startup by French-based company Vupen that Buys and Sells zero-day exploits. And Guess what, in How much? $1,000,000. Yes, $1 Million. Last month, a Bug bounty challenge was announced by Zerodium for finding a hack that must allow an attacker to remotely compromise a non-jailbroken Apple device through: A web page on Safari or Chrome browser, In-app browsing action, or Text message or MMS. Zerodium's Founder Chaouki Bekrar confirmed on Twitter that an unnamed group of hackers has won this $1 Million Bounty for sufficiently submitting a remote browser-based iOS 9.1/9.2b Jailbreak (untethered) Exploit. NO More Fun. It's Serious Threat to iOS Use
Here's How Websites Are Tracking You Online

Here's How Websites Are Tracking You Online

October 28, 2015Swati Khandelwal
Webmasters can track all your activities on the Internet – even if you have already cleared your browsing history and deleted all saved cookies. A researcher demonstrated two unpatched flaws that can be exploited to track Millions of Internet users, allowing malicious website owners: List Building: To compile a list of visited domains by users, even if they have cleared their browsing history Tracking Cookies: To tag users with a tracking cookie that will persist even after they have deleted all cookies These two Browser Fingerprinting techniques abuse HTTP Strict Transport Security (HSTS) and Content Security Policy – new security features already built into Mozilla Firefox and Google Chrome, and expected to make their ways to other mainstream browsers in near future. WHAT IF, The Website owners turn these Security features against You? A security researcher has proved exactly the same last weekend at Toorcon security conference in San Diego. Yan Zhu, an
This Malware Can Delete and Replace Your Entire Chrome Browser with a lookalike

This Malware Can Delete and Replace Your Entire Chrome Browser with a lookalike

October 20, 2015Swati Khandelwal
Security researchers have uncovered a new piece of Adware that replaces your entire browser with a dangerous copy of Google Chrome , in a way that you will not notice any difference while browsing. The new adware software, dubbed " eFast Browser ," works by installing and running itself in place of Google Chrome The adware does all kinds of malicious activities that we have seen quite often over the years: Generates pop-up, coupon, pop-under and other similar ads on your screen Placing other advertisements into your web pages Redirects you to malicious websites containing bogus contents Tracking your movements on the web to help nefarious marketers send more crap your way to generating revenue Therefore, having eFast Browser installed on your machine may lead to serious privacy issues or even identity theft. What's Nefariously Intriguing About this Adware? The thing that makes this Adware different from others is that instead of taking contr
Chrome, Firefox, Safari and IE – All Browsers Hacked at Pwn2Own Competition

Chrome, Firefox, Safari and IE – All Browsers Hacked at Pwn2Own Competition

March 21, 2015Mohit Kumar
The Annual Pwn2Own Hacking Competition  2015 held in Vancouver is over and participants from all over the world nabbed $557,500 in bug bounties for 21 critical bugs in top four web browsers as well as Windows OS, Adobe Reader and Adobe Flash. During the second and final day of this year's hacking contest, the latest version of all the four major browsers including Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, and Apple Safari, were compromised by the two security researchers. Sponsored by HP's Zero Day Initiative program, the Pwn2Own Hacking Competition ran two days at a security conference in Vancouver, Canada. The final highlights for Pwn2Own 2015 are quite impressive: 5 bugs in the Windows operating system 4 bugs in Internet Explorer 11 3 bugs in Mozilla Firefox 3 bugs in Adobe Reader 3 bugs in Adobe Flash 2 bugs in Apple Safari 1 bug in Google Chrome $557,500 USD bounty paid out to researchers The star of the show was South Korean secur
WebRTC Vulnerability leaks Real IP Addresses of VPN Users

WebRTC Vulnerability leaks Real IP Addresses of VPN Users

February 03, 2015Mohit Kumar
An extremely critical vulnerability has recently been discovered in WebRTC (Web Real-Time Communication) , an open-source standard that enables the browsers to make voice or video calls without needing any plug-ins. AFFECTED PRODUCTS Late last month, security researchers revealed a massive security flaw that enables website owner to easily see the real IP addresses of users through WebRTC , even if they are using a VPN or even PureVPN to mask their real IP addresses. The security glitch affects WebRTC-supporting browsers such as Google Chrome and Mozilla Firefox, and appears to be limited to Windows operating system only, although users of Linux and Mac OS X are not affected by this vulnerability. HOW DOES THE WebRTC FLAW WORKS WebRTC allows requests to be made to STUN (Session Traversal Utilities for NAT) servers which return the "hidden" home IP-address as well as local network addresses for the system that is being used by the user. The results of t
LOL, Jar File Malware Just Goes Viral Through Facebook Messages

LOL, Jar File Malware Just Goes Viral Through Facebook Messages

May 14, 2014Swati Khandelwal
If you came across any suspicious Facebook message with ' LOL ' text or a fake Image file send by any of your Facebook friend, avoid clicking it. A Trojan horse is currently circulating in wild through the Facebook social network that could steal your Facebook account data and Credentials. Security researchers spotted  this malware campaign first in the beginning of March this year, where the Trojan spreads itself through the Facebook's Messenger service (inbox) by messaging a victim pretending to be one of their friends saying "LOL" with a zip file attached, which appears to be a photo, named " IMG_xxxx.zip ". In Past two weeks, many of our readers informed us that they received similar ZIP files from their trusted Facebook friends. The Hacker News team also noticed that despite after several warnings in media, once again the malware campaign just goes viral like any other video scam , but this time directly through users' inbox-to-inbox. HOW DOES
Fake Digital Certificates Found in the Wild While Observing Facebook SSL Connections

Fake Digital Certificates Found in the Wild While Observing Facebook SSL Connections

May 12, 2014Swati Khandelwal
Visiting a website certified with an SSL certificate doesn't mean that the website is not bogus. Secure Sockets Layer (SSL) protect the web users in two ways, it uses public key encryption to encrypt sensitive information between a user's computer and a website, such as usernames, passwords, or credit card numbers and also verify the identity of websites. Today hackers and cyber criminals are using every tantrum to steal users' credentials and other sensitive data by injecting fake SSL certificates to the bogus websites impersonating Social media, e-commerce, and financial websites as well. DETECTING FAKE DIGITAL CERTIFICATES WIDELY A Group of researchers, Lin-Shung Huang , Alex Ricey , Erling Ellingseny and Collin Jackson , from the Carnegie Mellon University in collaboration with Facebook have analyzed [ PDF ] more than 3 million SSL connections and found strong evidence that at least 6;845 (0:2%) of them were in fact tampered with forged certificates i.e. self-signed di
LinkedIn Hack Tool Exposes Users' Emails without Exploiting Any Vulnerability

LinkedIn Hack Tool Exposes Users' Emails without Exploiting Any Vulnerability

April 03, 2014Anonymous
A Free Chrome, Firefox and Safari web browser plugin floating around the web, called ' Sell Hack ' allows users to view the hidden email address of any LinkedIn user, means anyone can grab email addresses that we use for professional purposes. When installed, the ' Sell Hack ' plugin will pop up a ' Hack In ' button on LinkedIn profiles and further automatically mines email addresses of LinkedIn users. NOT A SECURITY BREACH It's not a Security breach, LinkedIn has confirmed that no LinkedIn data has been compromised, but rather this free extension rely on an algorithm that checks publicly available data in order to guess users' email addresses. So without exploiting any loophole or vulnerability, Sell Hack is capable of predicting users' email addresses with OSINT (Open-Source Intelligence) techniques i.e. information collected from publicly available sources. It is also possible that, the Sell Hack extension is gathering data from
Facebook 'Watch naked video of friends' malware scam infects 2 million people

Facebook 'Watch naked video of friends' malware scam infects 2 million people

March 08, 2014Wang Wei
We have seen a lot of Facebook malware and virus infections spreading through friends list, and this time a new clickjacking scam campaign is going viral on Facebook. Hackers spam Facebook timeline with a friend's picture and " See (Friend)'s naked video," or "(Friend Name's) Private Video. " The Picture appears to be uploaded by a friend and definitely, you might want to see some of your Facebook friends naked, But Beware!  If you get curious and click, you will be redirected to a malicious website reports that your Flash Player is not working properly and needs to be re-installed. But in actuality it will install a malware in your system and once approved, several disguised thing can happen to you. It further installs a malicious  browser extension to spread the scam and steal users' photos. " When the link is clicked, users are sent to a very realistic-looking mockup of a YouTube page, where the hackers will try to imme
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