CVE-2022-26855 : What You Need to Know

A vulnerability has been identified in Dell PowerScale OneFS versions 8.2.x to 9.3.0.x, which could be exploited by a local malicious user resulting in a denial of service.

Understanding CVE-2022-26855

This CVE affects Dell's PowerScale OneFS, exposing it to a security risk due to incorrect default permissions.

What is CVE-2022-26855?

CVE-2022-26855 is a vulnerability in Dell PowerScale OneFS versions 8.2.x to 9.3.0.x, allowing a local attacker to potentially execute a denial of service attack.

The Impact of CVE-2022-26855

The vulnerability has a CVSS base score of 5.5, with medium severity. An attacker with low privileges can exploit this issue to disrupt services.

Technical Details of CVE-2022-26855

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The flaw lies in incorrect default permissions within Dell PowerScale OneFS, enabling unauthorized users to disrupt the system's availability.

Affected Systems and Versions

Dell PowerScale OneFS versions 8.2.x to 9.3.0.x are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

A local adversary can exploit the incorrect default permissions to trigger a denial of service attack on vulnerable systems.

Mitigation and Prevention

To prevent exploitation and protect systems from CVE-2022-26855, specific steps need to be taken.

Immediate Steps to Take

Implement the security update provided by Dell promptly.
Restrict access to vulnerable systems to authorized personnel only.

Long-Term Security Practices

Regularly monitor and audit permissions within the PowerScale OneFS environment.

Patching and Updates

Ensure that all systems running affected versions of Dell PowerScale OneFS are updated with the latest security patches.