CVE-2021-27887 : Vulnerability Insights and Analysis
Learn about CVE-2021-27887, a Stored XSS vulnerability in Ellipse APM affecting Hitachi ABB Power Grids products. Find out the impact, affected versions, and mitigation steps.
This article provides details about CVE-2021-27887, a Stored XSS vulnerability in Ellipse APM, affecting Hitachi ABB Power Grids products.
Understanding CVE-2021-27887
CVE-2021-27887 is a Cross-site Scripting (XSS) vulnerability found in the main dashboard of Ellipse APM, allowing malicious data injection by authenticated users.
What is CVE-2021-27887?
The vulnerability in Ellipse APM versions enables attackers to insert harmful data that can be executed in a victim's browser, impacting versions prior to 5.3.0.2, 5.2.0.4, and 5.1.0.7.
The Impact of CVE-2021-27887
The CVE-2021-27887 vulnerability poses a medium severity risk, with a CVSS base score of 6.3. It has a high impact on confidentiality and low impact on integrity.
Technical Details of CVE-2021-27887
The vulnerability allows attackers to perform stored XSS on Ellipse APM's main dashboard, affecting various Hitachi ABB Power Grids versions.
Vulnerability Description
CVE-2021-27887 permits an authenticated user or integrated application to inject malicious data into Ellipse APM, leading to script execution in a victim's browser.
Affected Systems and Versions
Hitachi ABB Power Grids Ellipse APM versions 5.3.0.1 and earlier, 5.2.0.3 and earlier, and 5.1.0.6 and earlier are affected by this XSS vulnerability.
Exploitation Mechanism
The vulnerability can be exploited by the injection of harmful scripts into the main dashboard of Ellipse APM via an integrated application.
Mitigation and Prevention
To address CVE-2021-27887, immediate action and long-term security practices should be implemented by users of Ellipse APM.
Immediate Steps to Take
Customers are advised to update to Ellipse APM versions 5.3.0.2, 5.2.0.4, or 5.1.0.7 to mitigate the XSS vulnerability. Hitachi ABB Power Grids recommends immediate application of the update.
Long-Term Security Practices
Maintaining updated software versions, implementing secure coding practices, and user awareness programs can help prevent XSS vulnerabilities in the future.
Patching and Updates
Regularly checking for security updates and applying patches promptly is essential to protect against known vulnerabilities.