Windows 10 Version 21H1 for ARM64-based Systems Windows 10 Version 21H1 for 32-bit Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Azure Edition Core Hotpatch Windows 10 Version 20H2 for 圆4-based Systems Windows 10 Version 20H2 for 32-bit Systems Windows 10 Version 20H2 for ARM64-based Systems Windows Server, version 20H2 (Server Core Installation) Windows 10 Version 21H2 for 32-bit Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 圆4-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 10 Version 1607 for 圆4-based Systems Windows Server 2016 (Server Core installation) Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for 圆4-based Systems Service Pack 1 Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Windows Server 2008 for 圆4-based Systems Service Pack 2 Windows Server 2008 for 圆4-based Systems Service Pack 2 (Server Core installation) Windows Server 2008 R2 for 圆4-based Systems Service Pack 1 Windows Server 2008 R2 for 圆4-based Systems Service Pack 1 (Server Core installation) Windows Server 2012 (Server Core installation) Windows Server 2012 R2 (Server Core installation) Below is the full list of vulnerable systems: Most Windows systems are vulnerable if they have Office products. If you’re using Endpoint Detection and Response (EDR) tools and/or Applocker policies, you should be more equipped to detect or block potential attacks than organizations that don’t. That said, if you regularly baseline your environment for anomalous process executions, it’s likely you may have detected an attack since projects like LOLBAS have documented the MSDT binary since 2018. RTF files previewed in Explorer are still dangerous, as Protected view becomes irrelevant. Head of Security Operations Centre at Arcadia Group Ltd. However, Microsoft Office documents opened in Protected View or Application Guard will present the attack. The Follina vulnerability executes the code via MSDT, so the code will run even if macros are disabled. Am I safe from Follina if I have macros disabled? Follina does not require macros to be enabled for successful exploitation. Microsoft Office products have been a popular attack vector for social engineering campaigns, though historically attacks require macros to be enabled to be successful. Why is the Follina vulnerability severe?įollina is a simple exploit that would require some user interaction to execute – for example, a social engineering campaign to persuade victims to open a malicious file with Microsoft Office on their Windows device. When exploited, Microsoft notes that the attacker can run arbitrary code with the privileges of the calling application, and then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. Microsoft is currently scoring the vulnerability as a CVSSv3.1 7.8/10. What is CVE-2022-30190?ĬVE-2022-30190, now dubbed “Follina,” is a flaw in the Microsoft Support Diagnostic Tool (MSDT) that allows for remote code execution (RCE) when MSDT is called using the URL protocol from an application such as Word. Three days later, on May 30, Microsoft acknowledged the vulnerability and released temporary remediation guidance for CVE-2022-30190. Update (6/1/22): Over the weekend, security research team Nao_Sec released details on Twitter regarding a possible zero-day vulnerability in Microsoft Office products for Windows. KB5014742: Security only Windows Server 2008 R2, Windows 7 SP1 KB5014748: Monthly Rollup Windows Server 2008 R2, Windows 7 SP1 KB5014741: Security only Windows Server 2012 KB5014747: Monthly Rollup Windows Server 2012 KB5014746: Security only Windows Server 2012 R2, Windows RT 8.1, Windows 8.1 KB5014738: Monthly Rollup Windows Server 2012 R2, Windows RT 8.1, Windows 8.1 Refer to the following security updates to close the vulnerability: Update (8/5/22): Microsoft Office released patches for the Follina vulnerability CVE-2022-30190 with the June 2022 Windows Security Update.
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