Microsoft’s June 2024 Patch Tuesday Addresses 1 Zero-Day, 51 Vulnerabilities

Microsoft has released its June 2024 Patch Tuesday security updates, addressing a total of 51 vulnerabilities. This includes one publicly disclosed zero-day vulnerability and 18 remote code execution (RCE) flaws. Fortunately, none of these security flaws have been actively exploited in the wild, giving organizations a critical window to apply the necessary patches and bolster their defenses. Read on to get all the details. 

What are the zero-day vulnerabilities mentioned in Microsoft’s May 2024 Patch Tuesday?  

The standout issue in this month’s update is the previously disclosed zero-day vulnerability known as the ‘Keytrap’ attack in the DNS protocol. Microsoft has now addressed this vulnerability, significantly enhancing the security of affected systems. 

CVE-2023-50868: The zero-day vulnerability, known as the “NSEC3” issue, affects the DNS protocol’s Closest Encloser Proof aspect. Detailed in RFC 5155, this flaw allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack. This vulnerability highlights the importance of implementing the guidance provided in RFC 9276 to avoid the extensive hash function iterations required by RFC 5155. 

For a comprehensive list of the vulnerabilities addressed in the June 2024 Patch Tuesday security updates, you can view the full details here. 

What is Nuspire doing? 

At Nuspire, we prioritize the security of our clients’ environments. As part of our ongoing commitment to cybersecurity, we promptly apply patches as soon as they are released, following vendor recommendations to ensure maximum effectiveness. Our proactive approach also includes actively threat hunting for any indications of compromise within client environments. This dual strategy of immediate patch application and continuous threat monitoring helps safeguard our clients against emerging threats. 

What should I do? 

Although none of the vulnerabilities addressed in this update are known to be actively exploited at the time of release, their severity and potential impact cannot be overstated. Promptly applying these security updates is crucial to protect your organization from potential threats. 

Organizations should take the following steps: 

1. Review the Updates: Examine the Microsoft Patch Tuesday updates to identify any technologies within your environment that are affected by these vulnerabilities. 
2. Apply Patches Promptly: Implement the necessary updates as soon as possible to mitigate the risk of threat actors exploiting these vulnerabilities. 
3. Monitor for Threats: Continuously monitor your environment for any signs of compromise and ensure that your security measures are up-to-date. 

The latest Microsoft Patch Tuesday updates highlight the critical importance of effective vulnerability management in safeguarding your organization against security breaches and zero-day exploits. Stay ahead of potential threats with Nuspire’s comprehensive Vulnerability Management Services. Our offerings include proactive vulnerability scanning, systematic patch management, and tailored expert advice to tackle your unique security needs.  

Additionally, our Incident Response Readiness service helps you proactively prepare for any threats that may come your way, ensuring your organization is always ready to respond swiftly and effectively.