CVE-2022-27615 : What You Need to Know
CVE-2022-27615 poses a high security risk as authenticated remote users can delete arbitrary files in Synology DNS Server before 2.2.2-5027. Learn about the impact and mitigation steps.
A Path Traversal vulnerability in Synology DNS Server before version 2.2.2-5027 allows remote authenticated users to delete arbitrary files, posing a significant security risk.
Understanding CVE-2022-27615
This CVE highlights a critical security flaw that could be exploited by authenticated remote users to delete files on the affected system.
What is CVE-2022-27615?
The CVE-2022-27615 vulnerability is due to the improper limitation of a pathname to a restricted directory in the cgi component of Synology DNS Server.
The Impact of CVE-2022-27615
With a CVSS base score of 7.7 out of 10, this vulnerability has a high availability impact. Attackers can exploit the flaw to delete arbitrary files through unspecified vectors.
Technical Details of CVE-2022-27615
This section delves into the specifics of the vulnerability, including affected systems, exploitation mechanisms, and more.
Vulnerability Description
The vulnerability arises from improper pathname limitations in the cgi component of Synology DNS Server before version 2.2.2-5027.
Affected Systems and Versions
Synology DNS Server versions earlier than 2.2.2-5027 are impacted by this vulnerability, specifically those with custom configurations.
Exploitation Mechanism
Remote authenticated users can take advantage of this flaw to delete files on the targeted system through vectors that are not specified.
Mitigation and Prevention
Protecting systems from CVE-2022-27615 involves taking immediate steps and implementing long-term security measures to mitigate the risks.
Immediate Steps to Take
Ensure that the Synology DNS Server is updated to version 2.2.2-5027 or newer to address the vulnerability. Additionally, review and restrict user access to mitigate unauthorized file deletions.
Long-Term Security Practices
Regularly monitor for security updates from Synology and apply patches promptly to safeguard against potential exploits. Implement network segmentation and access controls to limit the impact of similar vulnerabilities in the future.
Patching and Updates
Stay informed about security advisories from Synology and apply patches as soon as they are released to maintain the security of your DNS Server.