CVE-2020-16948 : Security Advisory and Response

Microsoft SharePoint Server is affected by an information disclosure vulnerability that could allow an attacker to access sensitive information on the system.

Understanding CVE-2020-16948

This CVE identifies an information disclosure vulnerability in Microsoft SharePoint Server that could lead to further system compromise if exploited.

What is CVE-2020-16948?

An information disclosure vulnerability in Microsoft SharePoint Server allows attackers to retrieve sensitive information from the system, potentially leading to additional security breaches.

The Impact of CVE-2020-16948

Exploiting this vulnerability could enable attackers to compromise user systems by obtaining critical data.

Technical Details of CVE-2020-16948

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from Microsoft SharePoint Server's improper handling of objects in memory, creating an opportunity for attackers to access system information.

Affected Systems and Versions

Microsoft SharePoint Enterprise Server 2016 (Version 16.0.0)
Microsoft SharePoint Server 2019 (Version 16.0.0)
Microsoft SharePoint Foundation 2010 Service Pack 2 (Version 13.0.0)
Microsoft SharePoint Foundation 2013 Service Pack 1 (Version 15.0.0)

Exploitation Mechanism

To exploit this vulnerability, attackers need to log into an affected system and execute a specially crafted application.

Mitigation and Prevention

Protecting systems from CVE-2020-16948 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply the security update provided by Microsoft to address the vulnerability.
Monitor system logs for any suspicious activities that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch Microsoft SharePoint Server to prevent known vulnerabilities.
Implement strong access controls and authentication mechanisms to limit unauthorized access.
Conduct regular security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Microsoft has released a security update to fix the vulnerability by improving how Microsoft SharePoint Server manages objects in memory.