CVE-2021-27416 Explained : Impact and Mitigation

Hitachi ABB Power Grids' Ellipse Enterprise Asset Management (EAM) versions up to and including 9.0.25 are vulnerable to cross-site scripting (XSS) attacks. This can allow an attacker to execute malicious code through a user's web browser, leading to information compromise or session takeover.

Understanding CVE-2021-27416

This CVE relates to a security vulnerability in Hitachi ABB Power Grids' Ellipse EAM software that could be exploited by an attacker through XSS techniques.

What is CVE-2021-27416?

CVE-2021-27416 describes a flaw in the Ellipse EAM versions prior to 9.0.26 that enables attackers to trick users into executing malicious code via the web browser.

The Impact of CVE-2021-27416

The vulnerability poses a medium-severity risk with a CVSS base score of 5.5, potentially resulting in the compromise of confidential data or unauthorized session access.

Technical Details of CVE-2021-27416

This section covers specific technical aspects of the CVE.

Vulnerability Description

The vulnerability exists in Ellipse EAM versions up to 9.0.25, allowing attackers to exploit XSS flaws and execute unauthorized code through the browser.

Affected Systems and Versions

Hitachi ABB Power Grids' Ellipse EAM versions <= 9.0.25 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can leverage the XSS vulnerability by enticing users to click on malicious links containing harmful code.

Mitigation and Prevention

Learn how to safeguard your systems and prevent exploitation of this vulnerability.

Immediate Steps to Take

It's crucial to apply security best practices and firewall configurations to protect your network from external attacks.

Long-Term Security Practices

Ensure critical systems are physically protected, minimize exposed ports, avoid non-essential web activities, and provide comprehensive security training to identify potential threats.

Patching and Updates

Hitachi ABB Power Grids recommends updating to Ellipse EAM Version 9.0.26 to address the vulnerability. Additionally, refer to cybersecurity advisory PGVU-PGGA-Ellipse-202027 for more information on mitigation.