CVE-2020-27653 : Security Advisory and Response

A vulnerability in Synology Router Manager (SRM) before version 1.2.4-8081 could allow man-in-the-middle attackers to spoof servers and access sensitive information.

Understanding CVE-2020-27653

This CVE involves an algorithm downgrade vulnerability in QuickConnect within Synology Router Manager (SRM) that affects versions prior to 1.2.4-8081.

What is CVE-2020-27653?

The vulnerability allows attackers to impersonate servers and gather sensitive data through unspecified methods.

The Impact of CVE-2020-27653

The vulnerability has a CVSS base score of 8.3, indicating a high severity level with significant impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2020-27653

The technical aspects of the CVE provide insight into the vulnerability and its implications.

Vulnerability Description

The flaw in QuickConnect in SRM permits man-in-the-middle attacks, enabling attackers to deceive users and access confidential information.

Affected Systems and Versions

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

Exploitation Mechanism

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

Mitigation and Prevention

Protecting systems from CVE-2020-27653 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update SRM to version 1.2.4-8081 or later to mitigate the vulnerability.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement secure communication protocols to prevent man-in-the-middle attacks.
Regularly review and update cryptographic algorithms to ensure robust security.

Patching and Updates

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