CVE-2021-31172 : Vulnerability Insights and Analysis
Learn about CVE-2021-31172, a high-severity spoofing vulnerability impacting Microsoft SharePoint Server 2016, 2019, and Foundation 2013. Discover the impact, affected systems, and mitigation steps.
Microsoft SharePoint Server Spoofing Vulnerability was published on May 11, 2021, with a high CVSS base score of 7.1. The vulnerability affects Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, and Microsoft SharePoint Foundation 2013 Service Pack 1.
Understanding CVE-2021-31172
This CVE identifies a spoofing vulnerability in Microsoft SharePoint Server.
What is CVE-2021-31172?
The CVE-2021-31172 relates to a spoofing vulnerability that allows an attacker to impersonate a user or device, potentially leading to various security risks.
The Impact of CVE-2021-31172
With a CVSS base severity rating of HIGH, this vulnerability poses a significant risk to affected systems. Attackers could exploit this vulnerability to perform unauthorized actions on behalf of another user.
Technical Details of CVE-2021-31172
The following technical details outline the specifics of the vulnerability:
Vulnerability Description
The vulnerability allows for spoofing attacks, enabling malicious actors to impersonate users or devices.
Affected Systems and Versions
- Microsoft SharePoint Enterprise Server 2016 (Version 16.0.0 to less than 16.0.5161.1000)
- Microsoft SharePoint Server 2019 (Version 16.0.0 to less than 16.0.10374.20000)
- Microsoft SharePoint Foundation 2013 Service Pack 1 (Version 15.0.0 to less than 15.0.5345.1000)
Exploitation Mechanism
The vulnerability can be exploited by an attacker to perform spoofing attacks, compromising the integrity of the affected systems.
Mitigation and Prevention
To address CVE-2021-31172, consider the following mitigation strategies:
Immediate Steps to Take
- Apply the latest security updates provided by Microsoft.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Implement strict access controls and user authentication mechanisms.
- Conduct regular security training for employees to prevent social engineering attacks.
Patching and Updates
Ensure that your Microsoft SharePoint servers are updated with the latest patches to mitigate the risk posed by this vulnerability.