Overview
On August 14, NSFOCUS CERT detected that Microsoft released a security update patch for August, which fixed 90 security issues involving widely used products such as Windows, Microsoft Office, Visual Studio and Azure, including high-risk vulnerabilities such as privilege escalation and remote code execution.
Among the vulnerabilities fixed in Microsoft’s monthly update this month, 6 are critical and 81 are important. These include five 0-day exploits in the field:
WinSock Privilege Escalation Vulnerability for Windows Ancillary Function Driver (CVE-2024-38193)
Microsoft Project Remote Code Execution Vulnerability (CVE-2024-38189)
Windows Power Dependency Coordinator Privilege Escalation Vulnerability (CVE-2024-38107)
Windows Kernel Permission Escalation Vulnerability (CVE-2024-38106)
Windows Mark of the Web Security Function Bypass Vulnerability (CVE-2024-38213)
Please update patches for protection as soon as possible. For a complete list of vulnerabilities, see the appendix.
Reference link: https://msrc.microsoft.com/update-guide/releaseNote/2024-Aug
Key Vulnerabilities
We’ve screened out the vulnerabilities with great impact in this update according to product popularity and vulnerability importance. Please pay attention to them:
Windows TCP/IP Remote Code Execution Vulnerability (CVE-2024-38063):
Windows TCP/IP has a remote code execution vulnerability. Due to integer underflow or wrapback in the Windows TCP/IP protocol stack, an unauthenticated attacker may repeatedly send special IPv6 packets to the Windows host, thus executing arbitrary codes on the target system.
Official Announcement Link:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38063
Remote Code Execution Vulnerability of Windows Network Virtualization (CVE-2024-38159/CVE-2024-38160):
Windows Network Virtualization has multiple remote code execution vulnerabilities. Due to boundary errors in Windows Network Virtualization, an attacker may enable unauthorized memory writes by manipulating the contents of a Memory Descriptor List (MDL), triggering a heap-based buffer overflow and causing client-to-host escape.
Official Announcement Link:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38159
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38160
Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability (CVE-2024-38140):
The vulnerability may allow remote attackers to execute arbitrary code on the target system. An unauthenticated attacker can exploit this vulnerability by sending specially crafted packets to the Windows Pragmatic General Multicast (PGM) open socket on the server when a program is listening on the Pragmatic General Multicast (PGM) port.
Official Announcement Link:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38140
WinSock privilege escalation vulnerability for Windows Ancillary Function Driver (CVE-2024-38193):
Windows Ancillary Function Driver for WinSock has a privilege escalation vulnerability. Due to the use error after release in WinSock auxiliary function driver, local attackers with ordinary user permissions can exploit this vulnerability by running special programs to obtain SYSTEM permissions of the target system. At present, this vulnerability has been found to be exploited in the wild.
Official Announcement Link:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38193
Microsoft Project Remote Code Execution Vulnerability (CVE-2024-38189):
Microsoft Project has a remote code execution vulnerability. Due to insufficient verification on the input provided by users, unauthenticated remote attackers can exploit it by sending special malicious files to victims and tricking them into running. At present, this vulnerability has been found to be exploited in the wild.
Official Announcement Link:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38189
Windows Power Dependency Coordinator privilege escalation vulnerability (CVE-2024-38107):
The Windows Power Dependency Coordinator has a privilege escalation vulnerability. Due to an error in the Windows Power Dependency Coordinator after release, local attackers authenticated by ordinary users can exploit this vulnerability by running special programs to obtain SYSTEM permissions of the target system. At present, this vulnerability has been found to be exploited in the wild.
Official Announcement Link:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38107
Windows Kernel Permission Escalation Vulnerability (CVE-2024-38106):
The Windows Kernel has a privilege escalation vulnerability. Due to the competition condition in the Windows Kernel, local attackers authenticated by ordinary users can exploit this vulnerability by running special programs to obtain SYSTEM permissions of the target system. At present, this vulnerability has been found to be exploited in the wild.
Official Announcement Link:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38106
Scope of Impact
The following are some affected product versions that focus on vulnerabilities. For the scope of other products affected by vulnerabilities, please refer to the official announcement link.
| Vulnerability No. | Affected product versions |
| CVE-2024-38159 CVE-2024-38160 | Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems |
| CVE-2024-38063 CVE-2024-38140 CVE-2024-38193 | Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 (Server Core installation) Windows Server 2012 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 10 for x64-based Systems Windows 10 for 32-bit Systems Windows Server 2022, 23H2 Edition (Server Core installation) Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 11 Version 22H2 for x64-based Systems Windows 11 Version 22H2 for ARM64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows 11 version 21H2 for ARM64-based Systems Windows 11 version 21H2 for x64-based Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for ARM64-based Systems Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems |
| CVE-2024-38189 | Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Project 2016 (64-bit edition) Microsoft Project 2016 (32-bit edition) Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Office 2019 for 64-bit editions Microsoft Office 2019 for 32-bit editions |
| CVE-2024-38107 | Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 (Server Core installation) Windows Server 2012 Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 10 for x64-based Systems Windows 10 for 32-bit Systems Windows Server 2022, 23H2 Edition (Server Core installation) Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 11 Version 22H2 for x64-based Systems Windows 11 Version 22H2 for ARM64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows 11 version 21H2 for ARM64-based Systems Windows 11 version 21H2 for x64-based Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for ARM64-based Systems Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems |
| CVE-2024-38106 | Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows 10 for x64-based Systems Windows 10 for 32-bit Systems Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows Server 2016 (Server Core installation) Windows Server 2016 Windows Server 2022, 23H2 Edition (Server Core installation) Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 11 Version 22H2 for x64-based Systems Windows 11 Version 22H2 for ARM64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows 11 version 21H2 for ARM64-based Systems Windows 11 version 21H2 for x64-based Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for ARM64-based Systems Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems |
Mitigation
At present, Microsoft has officially released security patches to fix the above vulnerabilities for supported product versions. It is strongly recommended that affected users install patches as soon as possible for protection. The official download link: https://msrc.microsoft.com/update-guide/releaseNote/2024-Aug
Note: Patch update of Windows Update may fail due to network problems, computer environment problems and other reasons. After installing the patch, users shall check whether the patch is successfully updated in time.
Right click on the Windows icon, select “Settings (N)”, select “Updates and Security”-“Windows Updates” to view prompts on this page, or click “View Update History” to view historical updates. For updates that have not been successfully installed, you can click the name of the update to jump to Microsoft’s official download page. It is recommended that users click on the link on this page and go to the “Microsoft Update Catalog” website to download the independent package and install it.
Appendix: Vulnerability List
| Affected products | CVE No. | Vulnerability Title | Severity |
| Windows | CVE-2024-38159 | Windows Network Virtualization Remote Code Execution Vulnerability | Critical |
| Windows | CVE-2024-38160 | Windows Network Virtualization Remote Code Execution Vulnerability | Critical |
| Windows | CVE-2024-38063 | Windows TCP/IP remote code execution vulnerability | Critical |
| Windows | CVE-2024-38140 | Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability | Critical |
| Microsoft Dynamics | CVE-2024-38166 | Microsoft Dynamics 365 Cross Site Scripting Vulnerability | Critical |
| Microsoft Office | CVE-2024-38206 | Microsoft Copilot Studio Disclosure Vulnerability | Critical |
| Azure | CVE-2024-38109 | Azure Health Bot Permission Escalation Vulnerability | Critical |
| Azure | CVE-2024-38108 | Azure Stack Hub Spoofing Vulnerability | Important |
| Windows | CVE-2024-38123 | Windows Bluetooth Driver Information Disclosure Vulnerability | Important |
| Windows | CVE-2024-38161 | Windows Mobile Broadband Driver Remote Code Execution Vulnerability | Important |
| Microsoft Visual Studio,.NET | CVE-2024-38167 | .NET and Visual Studio disclosure vulnerabilities | Important |
| Microsoft Visual Studio,.NET | CVE-2024-38168 | .NET and Visual Studio Denial of Service Vulnerabilities | Important |
| Microsoft Office | CVE-2024-38172 | Microsoft Excel remote code execution vulnerability | Important |
| Windows | CVE-2024-38178 | Scripting Engine memory leak vulnerability | Important |
| Windows | CVE-2024-38184 | Windows Kernel-Mode Driver Privilege Escalation Vulnerability | Important |
| Windows | CVE-2024-38191 | Kernel Streaming Service Driver Privilege Escalation Vulnerability | Important |
| Windows | CVE-2024-38193 | Windows Ancillary Function Driver for WinSock Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38196 | Windows Common Log File System Driver Escalation Vulnerability | Important |
| Microsoft Office | CVE-2024-38197 | Microsoft Teams for iOS Spoofing | Important |
| Windows | CVE-2024-38198 | Windows Print Spooler privilege escalation vulnerability | Important |
| Windows | CVE-2024-38199 | Windows Line Printer Daemon (LPD) Service RemoteCodeExecutionVulnerability | Important |
| Azure | CVE-2024-38201 | Azure Stack Hub privilege escalation vulnerability | Important |
| Windows | CVE-2024-21302 | Windows Secure Kernel Mode Permission Escalation Vulnerability | Important |
| Microsoft Office | CVE-2024-38084 | Microsoft OfficePlus privilege escalation vulnerability | Important |
| Azure | CVE-2024-38098 | Azure Connected Machine Agent Privilege Escalation Vulnerability | Important |
| Windows | CVE-2024-38106 | Windows Kernel privilege escalation vulnerability | Important |
| Windows | CVE-2024-38107 | Windows Power Dependency Coordinator Escalation Vulnerability | Important |
| Windows | CVE-2024-29995 | Windows Kerberos privilege escalation vulnerability | Important |
| Windows | CVE-2024-38114 | Windows IP Routing Management Snapin Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38115 | Windows IP Routing Management Snapin Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38116 | Windows IP Routing Management Snapin Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38117 | NTFS privilege escalation vulnerability | Important |
| Windows | CVE-2024-38118 | Microsoft Local Security Authority (LSA) Server Information Disclosure Vulnerability | Important |
| Windows | CVE-2024-38121 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38122 | Microsoft Local Security Authority (LSA) Server Information Disclosure Vulnerability | Important |
| Windows | CVE-2024-38125 | Kernel Streaming WOW Thunk Service Driver Permission Upgrade Vulnerability | Important |
| Windows | CVE-2024-38126 | Windows Network Address Translation (NAT) Denial-of-Service Vulnerability | Important |
| Windows | CVE-2024-38127 | Windows Hyper-V privilege escalation vulnerability | Important |
| Windows | CVE-2024-38128 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38130 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38131 | Clipboard Virtual Channel Extension remote code execution vulnerability | Important |
| Windows | CVE-2024-38132 | Windows Network Address Translation (NAT) Denial-of-Service Vulnerability | Important |
| Windows | CVE-2024-38133 | Windows Kernel privilege escalation vulnerability | Important |
| Windows | CVE-2024-38134 | Kernel Streaming WOW Thunk Service Driver Permission Upgrade Vulnerability | Important |
| Windows | CVE-2024-38135 | Windows Resilient File System (ReFS) privilege elevation vulnerability | Important |
| Windows | CVE-2024-38136 | Windows Resource Manager PSM Service Extension Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38137 | Windows Resource Manager PSM Service Extension Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38138 | Windows Deployment Services Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38141 | Windows Ancillary Function Driver for WinSock Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38142 | Windows Secure Kernel Mode Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38143 | Windows WLAN AutoConfig Service Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38144 | Kernel Streaming WOW Thunk Service Driver Permission Upgrade Vulnerability | Important |
| Windows | CVE-2024-38145 | Windows Layer-2 Bridge Network Driver Denial of Service Vulnerability | Important |
| Windows | CVE-2024-38146 | Windows Layer-2 Bridge Network Driver Denial of Service Vulnerability | Important |
| Windows | CVE-2024-38147 | Microsoft DWM Core Library Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38148 | Windows Secure Channel Denial of Service Vulnerability | Important |
| Windows | CVE-2024-38150 | Windows DWM Core Library Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-38151 | Windows Kernel Information Disclosure Vulnerability | Important |
| Windows | CVE-2024-38152 | Windows OLE remote code execution vulnerability | Important |
| Windows | CVE-2024-38153 | Windows Kernel privilege escalation vulnerability | Important |
| Windows | CVE-2024-38154 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38155 | Security Center Broker Information Disclosure Vulnerability | Important |
| Azure IoT Hub Device Client SDK | CVE-2024-38157 | Remote code execution vulnerability in Azure IoT SDK | Important |
| C SDK for Azure IoT | CVE-2024-38158 | Remote code execution vulnerability in Azure IoT SDK | Important |
| Azure | CVE-2024-38162 | Azure Connected Machine Agent Privilege Escalation Vulnerability | Important |
| Windows | CVE-2024-38165 | Windows Compressed Folder Tampering Vulnerability | Important |
| Microsoft Office | CVE-2024-38169 | Microsoft Office Visio remote code execution vulnerability | Important |
| Microsoft Office | CVE-2024-38170 | Microsoft Excel remote code execution vulnerability | Important |
| Microsoft Office | CVE-2024-38171 | Microsoft PowerPoint remote code execution vulnerability | Important |
| Microsoft Office | CVE-2024-38173 | Microsoft Outlook remote code execution vulnerability | Important |
| Apps | CVE-2024-38177 | Windows App Installer Spoofing Vulnerability | Important |
| Windows | CVE-2024-38180 | Windows SmartScreen Security Features Bypass Vulnerabilities | Important |
| Windows | CVE-2024-38185 | Windows Kernel-Mode Driver Privilege Escalation Vulnerability | Important |
| Windows | CVE-2024-38186 | Windows Kernel-Mode Driver Privilege Escalation Vulnerability | Important |
| Windows | CVE-2024-38187 | Windows Kernel-Mode Driver Privilege Escalation Vulnerability | Important |
| Microsoft Office | CVE-2024-38189 | Microsoft Project remote code execution vulnerability | Important |
| Azure | CVE-2024-38195 | Azure CycleCloud Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38163 | Windows Update Stack Permission Escalation Vulnerability | Important |
| Microsoft Office | CVE-2024-38200 | Microsoft Office Spoofing Vulnerability | Important |
| Microsoft Dynamics | CVE-2024-38211 | Microsoft Dynamics 365 (on-premises) XSS vulnerability | Important |
| Windows | CVE-2024-38120 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38214 | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability | Important |
| Windows | CVE-2024-38215 | Windows Cloud Files Mini Filter Driver Privilege Elevation Vulnerability | Important |
| Windows | CVE-2024-38202 | Windows Update Stack Permission Escalation Vulnerability | Important |
| Microsoft Edge (Chromium-based) | CVE-2024-38218 | Microsoft Edge (HTML-based) Memory Leak | Important |
| Windows | CVE-2024-38223 | Windows Initial Machine Configuration Permission Escalation Vulnerability | Important |
| Windows | CVE-2024-37968 | Windows DNS Spoofing Vulnerability | Important |
| Windows | CVE-2024-38213 | Windows Mark of the Web Security Function Bypassing Vulnerabilities | Moderate |
Statement
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.
About NSFOCUS
NSFOCUS, a pioneering leader in cybersecurity, is dedicated to safeguarding telecommunications, Internet service providers, hosting providers, and enterprises from sophisticated cyberattacks.
Founded in 2000, NSFOCUS operates globally with over 4000 employees at two headquarters in Beijing, China, and Santa Clara, CA, USA, and over 50 offices worldwide. It has a proven track record of protecting over 25% of the Fortune Global 500 companies, including four of the five largest banks and six of the world’s top ten telecommunications companies.
Leveraging technical prowess and innovation, NSFOCUS delivers a comprehensive suite of security solutions, including the Intelligent Security Operations Platform (ISOP) for modern SOC, DDoS Protection, Continuous Threat Exposure Management (CTEM) Service and Web Application and API Protection (WAAP). All the solutions and services are augmented by the Security Large Language Model (SecLLM), ML, patented algorithms and other cutting-edge research achievements developed by NSFOCUS.
