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Critical OAuth Flaws Uncovered in Grammarly, Vidio, and Bukalapak Platforms

Critical OAuth Flaws Uncovered in Grammarly, Vidio, and Bukalapak Platforms

Oct 25, 2023
Critical security flaws have been disclosed in the Open Authorization (OAuth) implementation of popular online services such as Grammarly, Vidio, and Bukalapak, building upon previous shortcomings uncovered in  Booking[.]com and Expo . The weaknesses, now addressed by the respective companies following responsible disclosure between February and April 2023, could have allowed malicious actors to obtain access tokens and potentially hijack user accounts. OAuth is a  standard  that's commonly used as a mechanism for cross-application access, granting websites or applications access to their information on other websites, such as Facebook, but without giving them the passwords. "When OAuth is used to provide service authentication, any security breach in it can lead to identity theft, financial fraud, and access to various personal information including credit card numbers, private messages, health records, and more, depending on the specific service being attacked," Sa
Critical Flaw in Grammarly Spell Checker Could Let Attackers Steal Your Data

Critical Flaw in Grammarly Spell Checker Could Let Attackers Steal Your Data

Feb 06, 2018
A critical vulnerability discovered in the Chrome and Firefox browser extension of the grammar-checking software Grammarly inadvertently left all 22 million users' accounts, including their personal documents and records, vulnerable to remote hackers. According to Google Project Zero researcher Tavis Ormandy, who discovered the vulnerability on February 2, the Chrome and Firefox extension of Grammarly exposed authentication tokens to all websites that could be grabbed by remote attackers with just 4 lines of JavaScript code. In other words, any website a Grammarly user visits could steal his/her authentication tokens, which is enough to login into the user's account and access every "documents, history, logs, and all other data" without permission. "I'm calling this a high severity bug, because it seems like a pretty severe violation of user expectations," Ormandy said in a vulnerability report . "Users would not expect that visiting a we
How to Increase Engagement with Your Cybersecurity Clients Through vCISO Reporting

How to Increase Engagement with Your Cybersecurity Clients Through vCISO Reporting

Jul 22, 2024vCISO / Business Security
As a vCISO, you are responsible for your client's cybersecurity strategy and risk governance. This incorporates multiple disciplines, from research to execution to reporting. Recently, we published a comprehensive playbook for vCISOs, "Your First 100 Days as a vCISO – 5 Steps to Success" , which covers all the phases entailed in launching a successful vCISO engagement, along with recommended actions to take, and step-by-step examples.  Following the success of the playbook and the requests that have come in from the MSP/MSSP community, we decided to drill down into specific parts of vCISO reporting and provide more color and examples. In this article, we focus on how to create compelling narratives within a report, which has a significant impact on the overall MSP/MSSP value proposition.  This article brings the highlights of a recent guided workshop we held, covering what makes a successful report and how it can be used to enhance engagement with your cyber security clients.
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