CVE-2020-5371 Explained : Impact and Mitigation

Dell EMC Isilon OneFS versions 8.2.2 and earlier and Dell EMC PowerScale version 9.0.0 contain a file permissions vulnerability that could be exploited by an attacker to gain unauthorized access to files.

Understanding CVE-2020-5371

This CVE involves a file permissions vulnerability in Dell EMC Isilon OneFS and Dell EMC PowerScale, potentially leading to unauthorized access to files.

What is CVE-2020-5371?

CVE-2020-5371 is a vulnerability in Isilon OneFS and PowerScale that allows attackers to exploit insufficiently applied file permissions to access files without authorization.

The Impact of CVE-2020-5371

The vulnerability has a CVSS base score of 8 (High severity) with significant impacts on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2020-5371

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Isilon OneFS and PowerScale arises from incorrect permission assignment for critical resources, potentially leading to unauthorized file access.

Affected Systems and Versions

Product: Isilon OneFS
Vendor: Dell
Versions Affected: 8.1.2, 8.2.1, 8.2.2

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Scope: Unchanged
Availability Impact: High
Confidentiality Impact: High
Integrity Impact: High

Mitigation and Prevention

Protecting systems from CVE-2020-5371 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Dell promptly.
Restrict network access to vulnerable systems.
Monitor file access and permissions closely.

Long-Term Security Practices

Regularly update and patch software to address security vulnerabilities.
Implement least privilege access controls to limit unauthorized file access.

Patching and Updates

Dell has released security updates to address the vulnerability in Isilon OneFS and PowerScale.