Microsoft April 2023 Patch Tuesday Addresses 97 Vulnerabilities, Including a Zero-Day!
Microsoft has finally released April 2023 Patch Tuesday security updates, addressing a total of 97 vulnerabilities. However, Seven are classified as critical as they allow the most severe type of vulnerability remote code execution, and 90 are classified as critical. This was uncovered by using a vulnerability management software. The products covered in the April security update additionally include Windows CLFS driver, Microsoft Message Queuing, Windows DHCP Server, Windows Layer 2 Tunneling Protocol, .NET Core, Azure Machine Learning, Azure Service Connector, Microsoft Bluetooth Driver, Microsoft Defender for Endpoint, Microsoft Dynamics, and more.
April’s Patch Tuesday fixes onezero-day vulnerability that is known to be exploited in Nokoyawa ransomware attacks (CVE-2023-28252). Simplify patch deployment with a good patch management software.
Zero-Days Vulnerabilities addressed by Microsoft’s April 2023 Patch Tuesday
CVE-2023-28252 | Windows Common Log File System Driver Elevation of Privilege VulnerabilityThis vulnerability has a CVSSv3.1 score of 7.8 out of 10. Therefore this vulnerability allows remote attackers to execute commands with the highest level of privileges, called SYSTEM privileges, on a Windows system. This can additionally give the attacker complete control over the targeted system if exploited.
Critical Vulnerabilities Addressed by Patch Tuesday
Microsoft’s April 2023 Patch Tuesday addresses seven security vulnerabilities categorized as “Critical”. Additionally, these vulnerabilities can hence pose a significant threat and therefore affect the security of the devices. However, if exploited, they could allow remote code execution, enabling attackers to gain control of systems and therefore perform various malicious activities.
Microsoft Security Bulletin Summary for April 2023
- .NET Core
- Azure Machine Learning
- Azure Service Connector
- Microsoft Bluetooth Driver
- Microsoft Defender for Endpoint
- Microsoft Dynamics
- Microsoft Dynamics 365 Customer Voice
- Microsoft Edge (Chromium-based)
- Microsoft Graphics Component
- Microsoft Message Queuing
- Microsoft Office
- Microsoft Office Publisher
- Microsoft Office SharePoint
- Microsoft Office Word
- Microsoft PostScript Printer Driver
- Microsoft Printer Drivers
- Microsoft WDAC OLE DB provider for SQL
- Microsoft Windows DNS
- Visual Studio
- Visual Studio Code
- Windows Active Directory
- Windows ALPC
- Windows Ancillary Function Driver for Winsock
- Windows Boot Manager
- Windows Clip Service
- Windows CNG Key Isolation Service
- Windows Common Log File System Driver
- Windows DHCP Server
- Windows Enroll Engine
- Windows Error Reporting
- Windows Group Policy
- Windows Internet Key Exchange (IKE) Protocol
- Windows Kerberos
- Windows Kernel
- Windows Layer 2 Tunneling Protocol
Product: Microsoft Windows
CVEs/Advisory: CVE-2023-21554, CVE-2023-21727, CVE-2023-21729, CVE-2023-21769, CVE-2023-24883, CVE-2023-24884, CVE-2023-24885, CVE-2023-24886, CVE-2023-24887, CVE-2023-24912, CVE-2023-24914, CVE-2023-24924, CVE-2023-24925, CVE-2023-24926, CVE-2023-24927, CVE-2023-24928, CVE-2023-24929, CVE-2023-24931, CVE-2023-28216, CVE-2023-28217, CVE-2023-28218, CVE-2023-28219, CVE-2023-28220, CVE-2023-28221, CVE-2023-28222, CVE-2023-28223, CVE-2023-28224, CVE-2023-28225, CVE-2023-28226, CVE-2023-28227, CVE-2023-28228, CVE-2023-28229, CVE-2023-28231, CVE-2023-28232, CVE-2023-28233, CVE-2023-28234, CVE-2023-28235, CVE-2023-28236, CVE-2023-28237, CVE-2023-28238, CVE-2023-28240, CVE-2023-28241, CVE-2023-28243, CVE-2023-28244, CVE-2023-28246, CVE-2023-28247, CVE-2023-28248, CVE-2023-28249, CVE-2023-28250, CVE-2023-28252, CVE-2023-28253, CVE-2023-28254, CVE-2023-28255, CVE-2023-28256, CVE-2023-28266, CVE-2023-28267, CVE-2023-28268, CVE-2023-28269, CVE-2023-28270, CVE-2023-28271, CVE-2023-28272, CVE-2023-28273, CVE-2023-28274, CVE-2023-28275, CVE-2023-28276, CVE-2023-28277, CVE-2023-28278, CVE-2023-28291, CVE-2023-28292, CVE-2023-28293, CVE-2023-28297, CVE-2023-28298, CVE-2023-28302, CVE-2023-28305, CVE-2023-28306, CVE-2023-28307, CVE-2023-28308
Impact: Denial of Service, Elevation of Privilege, Information Disclosure, Remote Code Execution, Security Feature Bypass, Spoofing
KB’s: 5022282, 5022286, 5022287, 5022289, 5022291, 5022297, 5022303, 5022343, 5022346, 5022348, 5022352, 5025221, 5025224, 5025228, 5025229, 5025230, 5025234, 5025239, 5025272, 5025285, 5025287, 5025288
Product: Microsoft DynamicsCVEs/Advisory: CVE-2023-28313, CVE-2023-28314, CVE-2023-28309Impact: SpoofingKB’s: 5023894
Product: Visual StudioCVEs/Advisory: CVE-2023-28260, CVE-2023-28262, CVE-2023-28263, CVE-2023-28296, CVE-2023-28299Impact: Elevation of Privilege, Information Disclosure, Remote Code Execution, Spoofing
Product: Microsoft OfficeCVEs/Advisory: CVE-2023-28285, CVE-2023-28287, CVE-2023-28288, CVE-2023-28295, CVE-2023-28311Impact: Remote Code Execution, SpoofingKB’s: 5002213, 5002221, 5002373, 5002375, 5002381, 5002383, 5002385
In conclusion, these were the highlights of Microsoft’s April 2023 Patch Tuesday.
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