CVE-2021-30174 : Exploit Details and Defense Strategies

A detailed overview of CVE-2021-30174 involving a stored XSS vulnerability in RiyaLab CloudISO by RiyaLab Co., Ltd.

Understanding CVE-2021-30174

This CVE describes a stored Cross-site scripting (XSS) vulnerability in RiyaLab CloudISO, allowing remote authenticated attackers to inject malicious JavaScript.

What is CVE-2021-30174?

RiyaLab CloudISO suffers from inadequate filtering of special characters in a specific time management page, enabling attackers to execute stored XSS attacks.

The Impact of CVE-2021-30174

The vulnerability poses a medium severity threat, with a base score of 5.4 according to CVSS v3.1 metrics. It requires network access and user interaction.

Technical Details of CVE-2021-30174

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in RiyaLab CloudISO allows authenticated attackers to carry out stored XSS attacks by injecting malicious JavaScript through a certain field.

Affected Systems and Versions

RiyaLab CloudISO versions up to and including 2021.2a are impacted by this stored XSS vulnerability.

Exploitation Mechanism

Attackers with remote authenticated access exploit the lack of proper character filtering in the time management page to inject malicious JavaScript.

Mitigation and Prevention

Discover the immediate steps and long-term practices to enhance security and prevent exploitation of CVE-2021-30174.

Immediate Steps to Take

Users are strongly advised to update RiyaLab CloudISO to version 2021.2e to mitigate the stored XSS vulnerability.

Long-Term Security Practices

Implement strict input validation, conduct security assessments, and educate users on safe browsing practices to prevent XSS attacks.

Patching and Updates

Regularly apply software updates and security patches to ensure the ongoing protection of RiyaLab CloudISO against known vulnerabilities.