CVE-2018-5490 : What You Need to Know

In Clustered Data ONTAP 8.3 Release Candidate versions, an issue exists where the enforcement of Read-Only export policy rules is inaccurate, potentially granting more access than intended to authenticated SMBv2 and SMBv3 clients. This problem has been addressed in the GA release.

Understanding CVE-2018-5490

In this section, we will delve into the details of CVE-2018-5490.

What is CVE-2018-5490?

CVE-2018-5490 involves the inaccurate enforcement of Read-Only export policy rules in Clustered Data ONTAP 8.3 Release Candidate versions, leading to potential unauthorized access for SMBv2 and SMBv3 clients.

The Impact of CVE-2018-5490

The vulnerability may result in unauthorized write access to the system, posing a security risk to data integrity and confidentiality.

Technical Details of CVE-2018-5490

Let's explore the technical aspects of CVE-2018-5490.

Vulnerability Description

The issue lies in the inaccurate enforcement of Read-Only export policy rules in Clustered Data ONTAP 8.3 Release Candidate versions, allowing unintended access to authenticated SMBv2 and SMBv3 clients.

Affected Systems and Versions

Product: Clustered Data ONTAP
Vendor: NetApp
Versions: 8.3 Release Candidate versions

Exploitation Mechanism

The vulnerability can be exploited by authenticated SMBv2 and SMBv3 clients to gain unauthorized write access due to the inaccurate enforcement of Read-Only export policy rules.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2018-5490 vulnerability.

Immediate Steps to Take

Update systems to the NetApp Data ONTAP 8.3 GA release to address the issue.

Long-Term Security Practices

Regularly monitor and update security configurations to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security patches and updates from NetApp to ensure system security.