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Visit The Record for more. System administrators are encouraged to keep track of new information regarding the zero-day Microsoft vulnerability CVE dubbed Follina, that was disclosed during late May. What you need to know. Yesterday, Microsoft issued an advisory for a zero-day remote code execution RCE vulnerability impacting Microsoft Office.
As is typical with an RCE, an attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. What you should do. To protect against this trivial threat, members are strongly encouraged to remind end users of the high risk for opening attachments.
Specifically, advise users that there is a newly discovered vulnerability in Microsoft Word and likely other Microsoft Office applications that could install malware and remind them be extra vigilant about opening attachments. System administrators are advised to review available threat information and consider implementing appropriate workarounds until a patch is made available.
What is the vulnerability? Detonating the malicious code is as simple as opening up a specially crafted Word document — even in preview mode. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. While Microsoft states that Protected View or Application Guard for Office would both prevent the current attack, multiple researchers have noted that changing the document to a.
Is there a patch? No, not at the time of this publishing. Is there a workaround? Is this being actively exploited? There is publicly available proof-of-concept exploit code. Exploitation is anticipated in the coming days through email-based attachments.
Access a high-level overview of "Follina" at HelpNetSecurity. All Rights Reserved. That last sentence highlights one of the least-known, but most effective, security safeguards that Windows users can implement. If you set up your regular "daily driver" Windows account as a "limited user" that can't install or modify software, you are at much less risk of your computer being seriously hacked.
Your administrative account can stay dormant. Even when you do need to update things, you can just use the admin account's password to get things done without having to fully log into it. Anyhow, to update your Windows machine, click the Windows icon on the bottom left of the screen or the bottom center if you're running Windows 11 , then the gear icon in the pop-up menu. If you want to have updates installed automatically, then click Advanced Options while you're on that page and toggle the appropriate entry.
Microsoft patched 66 other flaws opens in new tab in its various software packages yesterday, including five other vulnerabilities that were also classified as zero-days because word got out about them before fixes were ready. The flaw described in detail above is the only one of the bunch that we know is already being exploited. One of the most serious flaws that's not a zero-day involves remote code execution — that's hacking over the internet to you and me — in Microsoft Office.
While the App Installer flaw has a severity score of 7. Microsoft isn't providing many details opens in new tab about this flaw, presumably because the software giant doesn't want anyone figuring out how to exploit it before most people have had a chance to install the patch. Paul Wagenseil is a senior editor at Tom's Guide focused on security and privacy.
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