CVE-2020-27655 : What You Need to Know

An improper access control vulnerability in Synology Router Manager (SRM) before version 1.2.4-8081 allows remote attackers to access restricted resources via inbound QuickConnect traffic.

Understanding CVE-2020-27655

This CVE involves an access control issue in Synology Router Manager (SRM) that could be exploited by remote attackers.

What is CVE-2020-27655?

The vulnerability in Synology Router Manager (SRM) allows unauthorized access to restricted resources through inbound QuickConnect traffic.

The Impact of CVE-2020-27655

The vulnerability has a CVSS base score of 6.5, indicating a medium severity issue with high attack complexity and network-based attack vector.

Technical Details of CVE-2020-27655

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability is classified as CWE-269: Improper Privilege Management, highlighting the access control weakness in SRM.

Affected Systems and Versions

Product: Synology Router Manager (SRM)
Vendor: Synology
Versions Affected: < 1.2.4-8081 (unspecified/custom version)

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: None
Scope: Changed
User Interaction: None
Impact: Low confidentiality, integrity, and availability

Mitigation and Prevention

Protecting systems from CVE-2020-27655 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Synology Router Manager to version 1.2.4-8081 or higher.
Restrict inbound QuickConnect traffic.

Long-Term Security Practices

Regularly monitor and update security configurations.
Implement network segmentation to limit access.

Patching and Updates

Apply security patches promptly.