CVE-2018-13281 Explained : Impact and Mitigation

A vulnerability related to information exposure has been discovered in SYNO.Core.ACL, a component of Synology DiskStation Manager (DSM) prior to version 6.2-23739-2. This vulnerability allows remote users with authenticated access to determine the presence of arbitrary files and obtain their metadata by exploiting the file_path parameter.

Understanding CVE-2018-13281

This CVE-2018-13281 vulnerability affects Synology DiskStation Manager (DSM) versions prior to 6.2-23739-2.

What is CVE-2018-13281?

The vulnerability in SYNO.Core.ACL in Synology DiskStation Manager (DSM) allows remote authenticated users to discover and retrieve metadata of arbitrary files through the file_path parameter.

The Impact of CVE-2018-13281

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 4.3. It poses a risk of information exposure to remote attackers with authenticated access.

Technical Details of CVE-2018-13281

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows remote authenticated users to determine the existence and obtain metadata of arbitrary files via the file_path parameter in SYNO.Core.ACL.

Affected Systems and Versions

Product: DiskStation Manager (DSM)
Vendor: Synology
Affected Versions: Prior to 6.2-23739-2

Exploitation Mechanism

The exploitation of this vulnerability involves authenticated remote users leveraging the file_path parameter to access arbitrary file metadata.

Mitigation and Prevention

Protecting systems from CVE-2018-13281 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Synology DiskStation Manager (DSM) to version 6.2-23739-2 or later to mitigate the vulnerability.
Monitor and restrict access to sensitive files and directories.

Long-Term Security Practices

Regularly review and update access controls and permissions.
Conduct security assessments and audits to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security advisories from Synology and apply patches promptly to address known vulnerabilities.