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.

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

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.

The post Microsoft’s August Security Update on High-Risk Vulnerabilities in Multiple Products appeared first on NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks..

*** This is a Security Bloggers Network syndicated blog from NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. authored by NSFOCUS. Read the original post at: https://nsfocusglobal.com/microsofts-august-security-update-on-high-risk-vulnerabilities-in-multiple-products/