CVE-2021-43927 : Vulnerability Insights and Analysis

A SQL Injection vulnerability in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote attackers to execute SQL commands via unspecified vectors.

Understanding CVE-2021-43927

This CVE details a security vulnerability in Synology DiskStation Manager (DSM) that enables SQL Injection attacks.

What is CVE-2021-43927?

The CVE-2021-43927 vulnerability involves improper neutralization of special elements used in an SQL command in the Security Management functionality of Synology DiskStation Manager (DSM) prior to version 7.0.1-42218-2. This flaw permits malicious actors to inject SQL commands through unspecified vectors.

The Impact of CVE-2021-43927

The vulnerability has a CVSSv3.1 base score of 4.7, categorizing it as a medium severity issue. Key impacts include low confidentiality, integrity, and availability impact levels, with high privileges required for exploitation.

Technical Details of CVE-2021-43927

This section outlines the technical aspects of the CVE.

Vulnerability Description

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected Systems and Versions

Product: DiskStation Manager (DSM)
Vendor: Synology
Versions Affected: Before 7.0.1-42218-2 (unspecified custom version)

Exploitation Mechanism

The vulnerability allows remote attackers to inject malicious SQL commands through unspecified vectors, exploiting the Security Management functionality in Synology DSM.

Mitigation and Prevention

Effective strategies to address and prevent exploitation of the vulnerability.

Immediate Steps to Take

Update DSM to version 7.0.1-42218-2 or newer to mitigate the vulnerability.
Monitor network traffic for any suspicious SQL injection attempts.

Long-Term Security Practices

Implement input validation mechanisms to block malicious SQL injection attempts.
Regularly review and update security configurations to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security advisories and patches released by Synology.
Apply patches promptly to ensure the latest security measures are in place.