Critical Flaw Reported in Popular Evernote Extension for Chrome Users

Cybersecurity researchers learn a critical flaw in the preferred Evernote Chrome extension that could have permitted hackers to hijack your browser and steal sensitive info from any site you accessed.

Evernote is a preferred services that aids men and women having notes and arrange their to-do endeavor lists, and above 4,610,000 people have been applying its Evernote Website Clipper Extension for Chrome browser.

Learned by Guardio, the vulnerability (CVE-2019-12592) resided in the strategies Evernote Website Clipper extension interacts with web sites, iframes and inject scripts, at some point breaking the browser’s exact same-origin coverage (SOP) and domain-isolation mechanisms.

In accordance to scientists, the vulnerability could enable an attacker-controlled site to execute arbitrary code on the browser in the context of other domains on behalf of buyers, major to a Universal Cross-web page Scripting (UXSS or Universal XSS) situation.

“A complete exploit that would enable loading a distant hacker managed script into the context of other web-sites can be achieved by way of a solitary, very simple window.postMessage command,” the scientists said.

“By abusing Evernote’s supposed injection infrastructure, the destructive script will be injected into all concentrate on frames in the website page no matter of cross-origin constraints.”

As shown in the video demonstration, the scientists also produced a Proof-of-Principle (PoC) exploit that can inject a custom made payload on targeted web-sites, and steal cookies, qualifications, and other personal info from an unsuspecting consumer.

No question extensions increase a ton of useful functions to your internet browser, but at the exact time, the thought of trusting 3rd-social gathering code is a lot much more hazardous than most folks understand.

Since extensions run in your website browser, they generally need the means to make community requests, entry and change the content material of net pages you go to, which poses a huge menace to your privacy and stability, isn’t going to make a difference if you have put in it from the official Firefox or Chrome outlets.

“Though the app author intends to give greater consumer working experience, extensions usually have permissions to entry a trove of sensitive assets and pose a considerably bigger protection chance than classic internet sites,” the scientists warned.

Guardio workforce responsibly claimed this challenge to Evernote late last month, who then introduced an up-to-date, patched variation of its Evernote Website Clipper extension for Chrome buyers.

Given that Chrome Browser periodically, generally immediately after each and every 5 hrs, checks for new variations of mounted extensions and updates them with out necessitating person intervention, you want to make sure your browser is running the most up-to-date Evernote model 7.11.1 or afterwards.

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