CVE-2021-34808 : Security Advisory and Response
Discover the details of CVE-2021-34808, a SSRF vulnerability in Synology Media Server allowing attackers to access intranet resources. Learn about the impact, affected systems, and mitigation steps.
Server-Side Request Forgery (SSRF) vulnerability in cgi component in Synology Media Server before 1.8.3-2881 allows remote attackers to access intranet resources via unspecified vectors.
Understanding CVE-2021-34808
This CVE-2021-34808 is a Server-Side Request Forgery (SSRF) vulnerability found in the cgi component of Synology Media Server.
What is CVE-2021-34808?
CVE-2021-34808 is a security vulnerability that enables remote attackers to access intranet resources through unspecified vectors in Synology Media Server versions before 1.8.3-2881.
The Impact of CVE-2021-34808
The impact of this vulnerability is rated as MEDIUM based on the CVSS v3.1 score of 5.8. It allows attackers to exploit the server-side request forgery flaw to breach the security of affected systems and potentially access sensitive intranet resources.
Technical Details of CVE-2021-34808
This section covers specific technical details related to CVE-2021-34808.
Vulnerability Description
The vulnerability in the cgi component of Synology Media Server permits attackers to carry out server-side request forgery attacks, leading to unauthorized access to intranet resources.
Affected Systems and Versions
The issue impacts Synology Media Server versions earlier than 1.8.3-2881.
Exploitation Mechanism
Remote threat actors can exploit this vulnerability to manipulate the server into accessing internal network resources using unspecified methods.
Mitigation and Prevention
Protecting systems from CVE-2021-34808 requires immediate action and long-term security measures.
Immediate Steps to Take
Users should update Synology Media Server to version 1.8.3-2881 or newer to mitigate the SSRF vulnerability. It is crucial to apply security patches promptly.
Long-Term Security Practices
Implement network segmentation, access controls, and regular security audits to prevent SSRF and other potential threats.
Patching and Updates
Regularly check for security updates and apply patches provided by Synology to ensure system security.