CVE-2021-27648 : Security Advisory and Response
Discover the impact of CVE-2021-27648, a critical vulnerability in Synology Antivirus Essential allowing privilege escalation for remote authenticated users. Learn mitigation steps here.
This CVE-2021-27648 article provides insights into a critical vulnerability affecting Synology Antivirus Essential before version 1.4.8-2801, allowing remote authenticated users to escalate privileges. Explore the impact, technical details, and mitigation strategies below.
Understanding CVE-2021-27648
CVE-2021-27648 is a vulnerability in Synology Antivirus Essential that enables remote authenticated users to gain privilege through unspecified vectors.
What is CVE-2021-27648?
The vulnerability in Synology Antivirus Essential, prior to version 1.4.8-2801, facilitates privilege escalation for remote authenticated users by referencing resources in another sphere.
The Impact of CVE-2021-27648
With a CVSS v3.1 base score of 9.0 and a critical severity level, this vulnerability poses a high risk to confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2021-27648
Learn more about the specifics of this CVE affecting Synology Antivirus Essential.
Vulnerability Description
The issue involves externally controlled references to resources in another sphere within the quarantine functionality, leading to privilege escalation for remote authenticated users.
Affected Systems and Versions
Synology Antivirus Essential versions before 1.4.8-2801 are impacted by this vulnerability.
Exploitation Mechanism
Remote authenticated users can exploit this vulnerability through unspecified vectors to elevate their privileges.
Mitigation and Prevention
Discover the steps to mitigate the risk and prevent exploitation of CVE-2021-27648.
Immediate Steps to Take
Users should update Synology Antivirus Essential to version 1.4.8-2801 or newer to address this vulnerability and enhance security.
Long-Term Security Practices
Implement strong access controls, regularly monitor for unauthorized activities, and educate users about safe computing practices to bolster long-term security.
Patching and Updates
Stay informed about security updates from Synology and promptly apply patches to safeguard systems against potential threats.