CVE-2020-27649 : Exploit Details and Defense Strategies
Learn about CVE-2020-27649, a high-severity vulnerability in Synology Router Manager (SRM) allowing man-in-the-middle attacks via improper certificate validation. Find mitigation steps and updates.
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-2020-27649
What is CVE-2020-27649?
The CVE-2020-27649 vulnerability involves improper certificate validation in the OpenVPN client within Synology Router Manager (SRM) before version 1.2.4-8081, enabling attackers to perform man-in-the-middle attacks.
The Impact of CVE-2020-27649
The vulnerability poses a high risk, with a CVSS base score of 8.3, impacting confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2020-27649
Vulnerability Description
The flaw allows attackers to impersonate servers and intercept sensitive data through a manipulated certificate.
Affected Systems and Versions
- Product: Synology Router Manager (SRM)
- Vendor: Synology
- Versions Affected: < 1.2.4-8081 (unspecified version type)
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Scope: Changed
Mitigation and Prevention
Immediate Steps to Take
- Update Synology Router Manager (SRM) to version 1.2.4-8081 or later.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Implement strong certificate validation mechanisms.
- Regularly review and update security configurations.
Patching and Updates
- Stay informed about security advisories from Synology.