CVE-2021-43035 : What You Need to Know

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5, leading to unauthenticated SQL injection vulnerabilities and remote code execution.

Understanding CVE-2021-43035

This CVE involves unauthenticated SQL injection vulnerabilities in Kaseya Unitrends Backup Appliance, enabling remote code execution.

What is CVE-2021-43035?

CVE-2021-43035 relates to two unauthenticated SQL injection vulnerabilities in Kaseya Unitrends Backup Appliance, allowing attackers to inject and execute arbitrary SQL queries under the postgres superuser account. This exploit can lead to full access to the postgres user account.

The Impact of CVE-2021-43035

The vulnerability can result in remote code execution and potential compromise of the postgres user account, posing a significant security risk to affected systems.

Technical Details of CVE-2021-43035

This section provides technical insights into the vulnerability.

Vulnerability Description

The CVE exposes unauthenticated SQL injection flaws in Kaseya Unitrends Backup Appliance before version 10.5.5, enabling malicious actors to execute arbitrary SQL queries.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions before 10.5.5

Exploitation Mechanism

The vulnerabilities allow threat actors to inject and execute SQL queries remotely, potentially leading to full access to the postgres superuser account.

Mitigation and Prevention

Actions to address and prevent exploitation of CVE-2021-43035.

Immediate Steps to Take

Implement the latest security patches provided by Kaseya Unitrends Backup Appliance.
Monitor for any unauthorized access to the postgres user account.
Restrict network access to the appliance to trusted IP addresses.

Long-Term Security Practices

Conduct regular security assessments and penetration testing on all systems.
Educate personnel on SQL injection risks and best security practices.
Utilize network segmentation to limit the reach of potential attacks.

Patching and Updates

Update the Kaseya Unitrends Backup Appliance to version 10.5.5 or newer to address the SQL injection vulnerabilities.