CVE-2021-20655 : What You Need to Know

FileZen (V3.0.0 to V4.2.7 and V5.0.0 to V5.0.2) by Soliton Systems K.K. is susceptible to OS Command Injection, allowing remote attackers with administrator privileges to run arbitrary commands on affected systems.

Understanding CVE-2021-20655

This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-20655?

CVE-2021-20655 refers to an OS Command Injection vulnerability in FileZen versions V3.0.0 to V4.2.7 and V5.0.0 to V5.0.2. Attackers exploiting this vulnerability can execute malicious OS commands by leveraging unspecified entry points.

The Impact of CVE-2021-20655

The exploitation of this vulnerability can result in unauthorized command execution on FileZen instances, posing a significant security risk. Attackers with administrator privileges can leverage this flaw to compromise the integrity and confidentiality of affected systems.

Technical Details of CVE-2021-20655

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

FileZen fails to sanitize user inputs effectively, leading to the execution of unauthorized OS commands. The lack of input validation mechanisms opens doors for malicious actors to abuse the application's functionality.

Affected Systems and Versions

FileZen versions V3.0.0 to V4.2.7 and V5.0.0 to V5.0.2 are confirmed to be impacted by this vulnerability. Users operating these versions are urged to take immediate action to secure their systems.

Exploitation Mechanism

Attackers with administrator privileges can exploit this vulnerability through unspecified vectors, enabling them to inject and execute arbitrary OS commands remotely.

Mitigation and Prevention

To safeguard systems against CVE-2021-20655, users and administrators should implement the following security measures.

Immediate Steps to Take

Update FileZen to the latest non-vulnerable version as soon as patches are released by the vendor.
Restrict network access to FileZen instances to trusted entities to minimize exposure to potential attacks.
Monitor system logs for any suspicious activities or unauthorized command executions.

Long-Term Security Practices

Regularly audit and review the security configurations of FileZen to ensure robust defense mechanisms against future threats.
Educate system administrators and users about secure coding practices and the importance of input validation.

Patching and Updates

Stay informed about security advisories from Soliton Systems K.K. regarding CVE-2021-20655. Promptly apply patches and updates to eliminate the vulnerability and enhance the overall security posture of FileZen installations.