CVE-2021-24099 : Exploit Details and Defense Strategies
Learn about CVE-2021-24099 impacting Microsoft Skype for Business Server 2019 CU2, Skype for Business Server 2015 CU 8, and Microsoft Lync Server 2013. Find out the impact, affected systems, and mitigation steps.
A detailed overview of the Skype for Business and Lync Denial of Service Vulnerability (CVE-2021-24099) affecting Microsoft products.
Understanding CVE-2021-24099
This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-24099.
What is CVE-2021-24099?
The CVE-2021-24099 is a Denial of Service vulnerability affecting Skype for Business Server 2019 CU2, Skype for Business Server 2015 CU 8, and Microsoft Lync Server 2013.
The Impact of CVE-2021-24099
The impact of this vulnerability can result in a Denial of Service condition, potentially leading to service disruption or unavailability.
Technical Details of CVE-2021-24099
Explore the technical aspects associated with CVE-2021-24099, including vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability allows attackers to launch a Denial of Service attack, compromising the availability of the affected Microsoft products.
Affected Systems and Versions
- Skype for Business Server 2019 CU2 (Version: 7.0.0)
- Skype for Business Server 2015 CU 8 (Version: 2015 CU 8)
- Microsoft Lync Server 2013 (Version: 0)
Exploitation Mechanism
The exploitation of this vulnerability could be carried out remotely by sending specially crafted requests to the target systems, triggering the Denial of Service condition.
Mitigation and Prevention
Discover the essential steps and best practices to mitigate the risks associated with CVE-2021-24099.
Immediate Steps to Take
- Apply security patches provided by Microsoft promptly.
- Implement network security measures to detect and block malicious traffic.
Long-Term Security Practices
- Regularly update software and systems to eliminate known vulnerabilities.
- Conduct security assessments and audits to enhance system resilience.
Patching and Updates
Stay informed about security updates released by Microsoft for the affected products and apply patches as soon as they are available.