CVE-2020-26191 Explained : Impact and Mitigation

Dell EMC PowerScale OneFS versions 8.1.0 - 9.1.0 contain a privilege escalation vulnerability that allows a user to gain unauthorized RBAC privileges.

Understanding CVE-2020-26191

Dell EMC PowerScale OneFS is affected by a privilege escalation vulnerability that could lead to severe consequences.

What is CVE-2020-26191?

This CVE refers to a privilege escalation vulnerability in Dell EMC PowerScale OneFS versions 8.1.0 - 9.1.0, enabling a user to elevate their RBAC privileges improperly.

The Impact of CVE-2020-26191

The vulnerability allows a user with ISI_PRIV_JOB_ENGINE to exploit the PermissionRepair job, granting them the highest level of RBAC privileges. This could result in unauthorized access to data, system tampering, or denial of service.

Technical Details of CVE-2020-26191

Dive into the specifics of this vulnerability.

Vulnerability Description

The vulnerability in Dell EMC PowerScale OneFS versions 8.1.0 - 9.1.0 permits users to escalate their RBAC privileges through the PermissionRepair job.

Affected Systems and Versions

Product: PowerScale OneFS
Vendor: Dell
Versions Affected: 8.1.0 - 9.1.0

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality, Integrity, and Availability Impact: High

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2020-26191.

Immediate Steps to Take

Apply the security update provided by Dell to patch the vulnerability.
Monitor system logs for any suspicious activities.
Restrict access to critical systems and data.

Long-Term Security Practices

Conduct regular security audits and assessments.
Educate users on proper RBAC privilege management.
Implement least privilege principles to limit user access.

Patching and Updates

Dell has released a security update addressing this vulnerability. Ensure all affected systems are updated with the latest patch.