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Critical Flaw Reported in Popular Evernote Extension for Chrome Users [thehackernews]

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20 Jun 2019
in News Clipping
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Cybersecurity researchers discover a critical flaw in the popular Evernote Chrome extension that could have allowed hackers to hijack your browser and steal sensitive information from any website you accessed.

Evernote is a popular service that helps people taking notes and organize their to-do task lists, and over 4,610,000 users have been using its Evernote Web Clipper Extension for Chrome browser.

Discovered by Guardio, the vulnerability (CVE-2019-12592) resided in the ways Evernote Web Clipper extension interacts with websites, iframes and inject scripts, eventually breaking the browser’s same-origin policy (SOP) and domain-isolation mechanisms.

According to researchers, the vulnerability could allow an attacker-controlled website to execute arbitrary code on the browser in the context of other domains on behalf of users, leading to a Universal Cross-site Scripting (UXSS or Universal XSS) issue.

As shown in the video demonstration, the researchers also developed a Proof-of-Concept (PoC) exploit that can inject a customized payload on targeted websites, and steal cookies, credentials, and other private information from an unsuspecting user.

No doubt extensions add a lot of useful features to your web browser, but at the same time, the idea of trusting 3rd-party code is much more dangerous than most people realize.

For more, click here.

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