“Reprompt” attack lets attackers steal data from Microsoft Copilot


Researchers found a method to steal data which bypasses Microsoft Copilot’s built-in safety mechanisms. The attack flow, called Reprompt, abuses how Microsoft Copilot handled URL parameters in order to hijack a user’s existing Copilot Personal session.

Copilot is an AI assistant which connects to a personal account and is integrated into Windows, the Edge browser, and various consumer applications. The issue was fixed in Microsoft’s January Patch Tuesday update, and there is no evidence of in‑the‑wild exploitation so far. Still, it once again shows how risky it can be to trust AI assistants at this point in time.

Read more…
Source: Malwarebytes Labs


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Android/SpyNote Moves to Crypto Currencies

    February 15, 2024

    Like much Android malware today, this malware abuses the Accessibility API. This API is used to automatically perform UI actions. For example, the malicious sample uses the Accessibility API to record device unlocking gestures. Newer, this SpyNote sample uses the Accessibility API to target famous crypto wallets. Read more… Source: Fortinet  

  • The Risks Of The #Monikerlink Bug In Microsoft Outlook And The Big Picture

    February 14, 2024

    Recently, Check Point Research released a white paper titled “The Obvious, the Normal, and the Advanced: A Comprehensive Analysis of Outlook Attack Vectors”, detailing various attack vectors on Outlook to help the industry understand the security risks the popular Outlook app may bring into organizations. As mentioned in the paper, Check Point researches discovered an interesting ...

  • CVE-2023-47218: QNAP QTS and QuTS Hero Unauthenticated Command Injection (FIXED)

    February 13, 2024

    Rapid7 has identified an unauthenticated command injection vulnerability in the QNAP operating system known as QTS and QuTS hero. QTS is a core part of the firmware for numerous QNAP entry- and mid-level Network Attached Storage (NAS) devices, and QuTS hero is a core part of the firmware for numerous QNAP high-end and enterprise NAS devices. ...

  • Ivanti urges customers to patch yet another critical vulnerability

    February 9, 2024

    In a new blog post, Ivanti says that it has found another vulnerability and urges customers to “immediately take action to ensure you are fully protected”. This vulnerability only affects a limited number of supported versions–Ivanti Connect Secure (version 9.1R14.4, 9.1R17.2, 9.1R18.3, 22.4R2.2 and 22.5R1.1), Ivanti Policy Secure version 22.5R1.1 and ZTA version 22.6R1.3. Please read ...

  • ‘World’s biggest casino’ app exposed customers’ personal data

    February 9, 2024

    The startup that develops the phone app for casino resort giant WinStar has secured an exposed database that was spilling customers’ private information to the open web. Oklahoma-based WinStar bills itself as the “world’s biggest casino” by square footage. The casino and hotel resort also offers an app, My WinStar, in which guests can access self-service ...

  • Maldocs ­Of Word And Excel: Vigor Of The Ages

    February 8, 2024

    Chasing new exploits, vulnerabilities, and threats is the way to go in the ever-changing cybercrime landscape. However, in a constant flow of information, the focus on yesterday’s highlights is low: every day, new CVEs occur, and new threats emerge. With this state of affairs, old menaces can be easily overlooked and still used by the attackers, ...