CVE-2020-27654 : Exploit Details and Defense Strategies

A vulnerability in Synology Router Manager (SRM) before version 1.2.4-8081 allows remote attackers to execute arbitrary commands via specific ports.

Understanding CVE-2020-27654

This CVE involves an improper access control vulnerability in lbd in Synology Router Manager (SRM) before 1.2.4-8081.

What is CVE-2020-27654?

The vulnerability allows remote attackers to execute arbitrary commands through specific ports.

The Impact of CVE-2020-27654

CVSS Base Score: 9.8 (Critical)
Attack Vector: Network
Attack Complexity: Low
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2020-27654

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Synology Router Manager (SRM) before 1.2.4-8081 allows remote attackers to execute arbitrary commands via port 7786/tcp or 7787/tcp.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited by remote attackers through specific ports to execute arbitrary commands.

Mitigation and Prevention

Protect your systems from this vulnerability by following these steps:

Immediate Steps to Take

Update Synology Router Manager (SRM) to version 1.2.4-8081 or later.
Monitor network traffic for any suspicious activity on ports 7786/tcp and 7787/tcp.

Long-Term Security Practices

Implement proper access control measures to restrict unauthorized access.
Regularly update and patch all software and firmware to prevent security vulnerabilities.

Patching and Updates

Stay informed about security advisories from Synology and apply patches promptly to secure your systems.