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Patch Tuesday: Microsoft Plugs Home windows Gap Exploited in Ransomware Assaults

By Ryan Naraine on December 13, 2022

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Microsoft on Tuesday pushed a significant Home windows replace to deal with a safety function bypass already exploited in international ransomware assaults.

The working system replace, launched as a part of Microsoft’s scheduled Patch Tuesday, addresses a flaw that lets malicious attackers use rigged recordsdata to evade MOTW (Mart of the Internet) defenses. 

“An attacker can craft a malicious file that might evade Mark of the Internet (MOTW) defenses, leading to a restricted lack of integrity and availability of security measures equivalent to Protected View in Microsoft Workplace, which depend on MOTW tagging,” in keeping with Microsoft’s barebones documentation of the problem.

The safety defect, tracked as CVE-2022-44698, is marked as publicly disclosed and exploited, including to the urgency for Home windows fleet directors to prioritize this month’s patches. 

SecurityWeek understands that hackers linked to the the infamous Magniber ransomware group have exploited the safety function bypass bug in data-theft and extortion assaults. 

Microsoft can be calling particular consideration to CVE-2022-44710, a privilege escalation flaw affecting the DirectX graphics kernel.  Microsoft described the bug as a race situation subject that’s already been publicly disclosed.  “An attacker who efficiently exploited this vulnerability might acquire SYSTEM privileges,” Redmond stated.

In all, Microsoft documented a minimum of 52 vulnerabilities in a variety of working system parts and software program merchandise. Six of the 52 bulletins are rated crucial, Microsoft’s highest severity score.

The December Patch Tuesday barrage additionally contains main fixes from VMware, Adobe, Fortinet and Citrix.

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