Injected payload is customized for each targeted website, able to steal cookies, credentials, private information, perform actions as the user and more.The exploit is triggered by the malicious website and causes Evernote’s internal infrastructure to inject an attacker controlled payload into all iframes contexts.Malicious website silently loads hidden, legitimate iframe tags (link) of targeted websites.via social media, email, a compromised blog comment, etc.). User navigates to the attacker’s malicious website (e.g. ![]() The researchers also provided a description of a Proof-of-Concept (PoC) attacks to steal sensitive data from an unsuspecting user, below the attack scenario: Researchers published a video PoC of the attacks that shows how hackers can steal a user’s Facebook information and data on PayPal transactions. To do so, simply right-click on the toolbar and select ‘Add to Toolbar. The vulnerability discovered by the experts in the Evernote extension allows an attacker to inject a malicious payload into all iframe contexts and steal credentials, cookies, and other data. The Evernote Web Clipper must first be added to your toolbar before it can be used. The attack scenario sees hackers tricking victims into visiting specially crafted websites that load hidden iframes. The popular extension has over 4.6 million users. ![]() The Evernote Web Clipper extension for Chrome allows users to easily save online content to Evernote, including web pages, articles, images, text, and emails. The vulnerability, tracked as CVE-2019-12592, could be exploited by attackers operating malicious websites to bypass the browser’s same-origin policy (SOP) and execute arbitrary code on the victim’s behalf. “A logical coding error made it is possible to break domain-isolation mechanisms and execute code on behalf of the user – granting access to sensitive user information not limited to Evernote’s domain.” This is a huge breakthrough, because it means we can edit. ![]() “In May 2019 Guardio’s research team has discovered a critical vulnerability in Evernote Web Clipper for Chrome.” reads a blog post published by Guardio. Evernote has a tool called Web Clipper that allows users to capture images directly in a note.
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