CVE-2021-20797 : Vulnerability Insights and Analysis

Cybozu Remote Service version 3.1.8 has a cross-site script inclusion vulnerability that permits a remote authenticated attacker to access stored information on the product, specifically when using Mozilla Firefox.

Understanding CVE-2021-20797

This CVE involves a security flaw in Cybozu Remote Service that can be exploited by a remote authenticated attacker to retrieve sensitive data.

What is CVE-2021-20797?

The vulnerability in Cybozu Remote Service version 3.1.8 enables a remote authenticated attacker to extract product information by leveraging a cross-site script inclusion flaw observed when utilizing Mozilla Firefox.

The Impact of CVE-2021-20797

This security issue could potentially lead to unauthorized access to sensitive data stored within the product, posing a risk to the confidentiality and integrity of the information.

Technical Details of CVE-2021-20797

The technical aspects of the CVE-2021-20797 vulnerability include a detailed description of the flaw, affected systems, and the exploitation mechanism.

Vulnerability Description

A cross-site script inclusion vulnerability in the management screen of Cybozu Remote Service version 3.1.8 allows a remote authenticated attacker to obtain stored information by exploiting this security loophole, which is specifically triggered when using Mozilla Firefox.

Affected Systems and Versions

The vulnerability impacts Cybozu Remote Service version 3.1.8 and occurs solely when accessed through the Mozilla Firefox browser.

Exploitation Mechanism

An attacker with remote authenticated access can exploit the cross-site script inclusion vulnerability to retrieve sensitive data from the product, compromising its confidentiality.

Mitigation and Prevention

To address CVE-2021-20797, immediate actions and long-term security measures should be implemented to safeguard systems and data.

Immediate Steps to Take

Users are advised to update Cybozu Remote Service to a patched version that addresses the cross-site script inclusion vulnerability to prevent unauthorized information retrieval by attackers.

Long-Term Security Practices

Employing secure coding practices, regular security assessments, and employee awareness training can enhance the organization's overall security posture and reduce the risk of similar vulnerabilities.

Patching and Updates

Staying informed about security advisories, promptly applying security patches, and maintaining up-to-date software versions are crucial to mitigating risks associated with CVE-2021-20797.