CVE-2021-29086 Explained : Impact and Mitigation

This article provides detailed information about CVE-2021-29086, a vulnerability found in Synology DiskStation Manager (DSM) that exposes sensitive information to unauthorized actors through the webapi component.

Understanding CVE-2021-29086

CVE-2021-29086 is a vulnerability in the webapi component of Synology DiskStation Manager (DSM) that allows remote attackers to access sensitive information before version 6.2.3-25426-3.

What is CVE-2021-29086?

The vulnerability in Synology DSM before 6.2.3-25426-3 enables unauthorized actors to obtain sensitive information through unspecified methods, posing a risk of data exposure.

The Impact of CVE-2021-29086

With a CVSS base score of 5.3 (Medium Severity), this vulnerability can compromise the confidentiality of information on affected systems, allowing attackers to access sensitive data remotely.

Technical Details of CVE-2021-29086

CVE-2021-29086 exposes an information disclosure flaw in Synology DSM, affecting versions prior to 6.2.3-25426-3.

Vulnerability Description

The vulnerability allows remote attackers to extract sensitive information through the webapi component, emphasizing the importance of prompt mitigation.

Affected Systems and Versions

Synology DiskStation Manager (DSM) versions less than 6.2.3-25426-3 are impacted by this vulnerability, requiring immediate attention from users and administrators.

Exploitation Mechanism

By leveraging unspecified attack vectors, threat actors can exploit this vulnerability remotely, emphasizing the critical need for remediation.

Mitigation and Prevention

To safeguard systems from CVE-2021-29086, users and organizations should take immediate mitigation steps and implement long-term security practices.

Immediate Steps to Take

Update Synology DSM to version 6.2.3-25426-3 or apply any patches released by the vendor to address the vulnerability and prevent unauthorized data access.

Long-Term Security Practices

Enhance network security measures, monitor for any suspicious activities, and regularly update systems to prevent the exploitation of security vulnerabilities.

Patching and Updates

Stay informed about security advisories from Synology and promptly apply patches and updates to ensure the protection of sensitive information.