CVE-2021-27076 Explained : Impact and Mitigation
Get insights into the Microsoft SharePoint Server Remote Code Execution Vulnerability (CVE-2021-27076) affecting SharePoint Enterprise, Foundation, and other versions by Microsoft.
A detailed overview of the Microsoft SharePoint Server Remote Code Execution Vulnerability (CVE-2021-27076) affecting various Microsoft products.
Understanding CVE-2021-27076
This section delves into what CVE-2021-27076 is and its impact, along with technical details and mitigation strategies.
What is CVE-2021-27076?
The Microsoft SharePoint Server Remote Code Execution Vulnerability (CVE-2021-27076) allows an attacker to execute arbitrary code on the target system remotely.
The Impact of CVE-2021-27076
The impact of this vulnerability is rated as HIGH with a CVSS base score of 8.8. It can result in a complete compromise of the system's confidentiality, integrity, and availability.
Technical Details of CVE-2021-27076
Explore the technical aspects of the vulnerability, including its description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability in Microsoft SharePoint Server allows attackers to execute malicious code remotely, posing a significant risk to system security.
Affected Systems and Versions
- Microsoft SharePoint Enterprise Server 2016 (Version 16.0.0)
- Microsoft SharePoint Server 2019 (Version 16.0.0)
- Microsoft Business Productivity Servers 2010 Service Pack 2 (Version 13.0.0.0)
- Microsoft SharePoint Foundation 2013 Service Pack 1 (Version 15.0.0)
Exploitation Mechanism
Attackers can exploit this vulnerability remotely, primarily targeting x64-based Systems running the affected versions of Microsoft SharePoint products.
Mitigation and Prevention
Learn how to safeguard your systems against CVE-2021-27076 through immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Microsoft promptly.
- Implement network segmentation to limit exposure.
- Monitor system logs for any suspicious activities.
Long-Term Security Practices
- Conduct regular security assessments and penetration testing.
- Keep software and systems updated with the latest security patches.
- Educate employees on best security practices to prevent social engineering attacks.
Patching and Updates
Regularly check for security updates and apply them as soon as they are released by Microsoft to mitigate the risk of exploitation.