CVE-2022-22685 : What You Need to Know

This article provides an overview of CVE-2022-22685, detailing the vulnerability in Synology WebDAV Server before version 2.4.0-0062 that allows remote authenticated users to delete arbitrary files.

Understanding CVE-2022-22685

CVE-2022-22685 is a Path Traversal vulnerability in the webapi component of Synology WebDAV Server, with a CVSS base score of 8.7.

What is CVE-2022-22685?

The vulnerability arises from an improper limitation of a pathname to a restricted directory, enabling remote authenticated users to delete arbitrary files through unspecified vectors.

The Impact of CVE-2022-22685

With a high base severity score, the vulnerability poses a significant threat to the integrity and availability of affected systems, potentially leading to unauthorized file deletions.

Technical Details of CVE-2022-22685

The following technical details outline the specifics of CVE-2022-22685:

Vulnerability Description

The Path Traversal flaw in Synology WebDAV Server allows attackers to manipulate file paths beyond the restricted directory boundaries, resulting in unauthorized file deletions.

Affected Systems and Versions

Synology WebDAV Server versions prior to 2.4.0-0062 are impacted by this vulnerability, exposing them to potential exploitation by remote authenticated users.

Exploitation Mechanism

Attackers with remote authenticated access can leverage the Path Traversal vulnerability to delete files on the affected Synology WebDAV Server through unspecified means.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-22685, users and organizations are advised to take the following steps:

Immediate Steps to Take

Update Synology WebDAV Server to version 2.4.0-0062 or later to patch the vulnerability.
Monitor file systems for any unauthorized deletions or modifications.

Long-Term Security Practices

Implement access controls and user permissions to restrict unauthorized file operations.
Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from Synology and apply patches promptly to ensure the security of your WebDAV Server.