CVE-2022-27617 : Vulnerability Insights and Analysis

A detailed overview of CVE-2022-27617 affecting Synology Calendar before version 2.3.4-0631.

Understanding CVE-2022-27617

This CVE involves a 'Path Traversal' vulnerability in the webapi component of Synology Calendar, allowing remote authenticated users to download arbitrary files.

What is CVE-2022-27617?

The CVE identifies an improper limitation of a pathname to a restricted directory, enabling unauthorized file downloads via unspecified vectors.

The Impact of CVE-2022-27617

With a CVSS base score of 5.0 (Medium Severity), this vulnerability can result in the compromise of confidentiality due to unrestricted file access.

Technical Details of CVE-2022-27617

Here are specific technical details associated with CVE-2022-27617.

Vulnerability Description

The vulnerability arises from inadequate path restrictions within the webapi component, permitting file download by authenticated users.

Affected Systems and Versions

Synology Calendar versions prior to 2.3.4-0631 are impacted by this security flaw.

Exploitation Mechanism

Remote authenticated users can exploit this vulnerability to access and download arbitrary files through the webapi component.

Mitigation and Prevention

To secure your system from CVE-2022-27617, immediate action and long-term security practices are crucial.

Immediate Steps to Take

Ensure to update Synology Calendar to version 2.3.4-0631 or above to mitigate the 'Path Traversal' vulnerability.

Long-Term Security Practices

Establish strict access control policies and continuously monitor for unauthorized file downloads to prevent similar exploits.

Patching and Updates

Regularly apply security patches and updates released by Synology to address known vulnerabilities.