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CVE-2021-21588 : Security Advisory and Response

Learn about CVE-2021-21588 affecting Dell EMC PowerFlex v3.5.x. This Medium severity vulnerability enables attackers to manipulate user actions on the Presentation Server.

Dell EMC PowerFlex, v3.5.x is affected by a Cross-Site WebSocket Hijacking Vulnerability in the Presentation Server/WebUI, potentially allowing unauthenticated attackers to manipulate user actions and configuration settings.

Understanding CVE-2021-21588

This section delves into the specifics of the CVE-2021-21588 vulnerability.

What is CVE-2021-21588?

The vulnerability in Dell EMC PowerFlex, v3.5.x enables attackers to carry out unauthorized actions on the Presentation Server via a Cross-Site WebSocket Hijacking attack.

The Impact of CVE-2021-21588

With a CVSS base score of 6.5 (Medium severity), the vulnerability poses a significant threat to the availability of affected systems but does not compromise confidentiality or integrity.

Technical Details of CVE-2021-21588

Explore the technical aspects of the CVE-2021-21588 vulnerability.

Vulnerability Description

CVE-2021-21588 involves a Cross-Site WebSocket Hijacking flaw in the Presentation Server/WebUI of Dell EMC PowerFlex, v3.5.x, allowing unauthenticated attackers to manipulate user actions.

Affected Systems and Versions

The vulnerability impacts Dell EMC PowerFlex, specifically version 3.5.x.

Exploitation Mechanism

Attackers could exploit this vulnerability by deceiving users into executing unintended actions on the Presentation Server, leading to potential configuration modifications.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2021-21588.

Immediate Steps to Take

To address this vulnerability, users should apply security patches provided by Dell promptly.

Long-Term Security Practices

Implementing robust security practices, such as network segmentation and user awareness training, can enhance overall defense against similar threats.

Patching and Updates

Regularly updating systems and monitoring security advisories from Dell can help prevent potential exploitation of vulnerabilities like CVE-2021-21588.

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