CVE-2021-20028 : Security Advisory and Response

A SQL Injection vulnerability has been identified in SonicWall SRA/SMA100 products, specifically impacting those running 8.x firmware and 9.0.0.9-26sv or earlier versions.

Understanding CVE-2021-20028

This CVE involves improper neutralization of a SQL Command, posing a significant security risk to end-of-life Secure Remote Access (SRA) products by SonicWall.

What is CVE-2021-20028?

CVE-2021-20028 is a SQL Injection vulnerability affecting SonicWall SRA/SMA100 devices running 8.x firmware and 9.0.0.9-26sv or earlier versions. The flaw arises from improper handling of SQL commands, potentially allowing malicious actors to execute unauthorized SQL queries.

The Impact of CVE-2021-20028

This vulnerability can be exploited by threat actors to manipulate databases, steal sensitive information, or even take control of the affected systems. It poses a serious risk to the confidentiality, integrity, and availability of data stored on the compromised devices.

Technical Details of CVE-2021-20028

The technical details of CVE-2021-20028 include:

Vulnerability Description

The vulnerability stems from improper neutralization of SQL commands, leaving the affected SonicWall SRA/SMA100 devices vulnerable to SQL Injection attacks.

Affected Systems and Versions

SonicWall SRA/SMA100 appliances running 8.x firmware and 9.0.0.9-26sv or earlier versions are susceptible to exploitation.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by injecting malicious SQL commands into vulnerable parameters, potentially gaining unauthorized access and control over the affected systems.

Mitigation and Prevention

To address CVE-2021-20028 and enhance security, consider the following measures:

Immediate Steps to Take

Upgrade SonicWall SRA/SMA100 devices to a patched version that addresses the SQL Injection vulnerability.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly monitor and update all software and firmware deployed on the network.
Conduct security assessments to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from SonicWall and promptly apply recommended patches and updates to safeguard against known vulnerabilities.