CVE-2023-23355 : What You Need to Know

This CVE record was published on March 29, 2023, and relates to an OS command injection vulnerability affecting QNAP operating systems.

Understanding CVE-2023-23355

This CVE, assigned by QNAP Systems Inc., highlights a critical vulnerability that could allow remote authenticated administrators to execute commands through unspecified vectors in the affected systems.

What is CVE-2023-23355?

The CVE-2023-23355 vulnerability is an OS command injection flaw that impacts QTS, QuTS hero, and QuTScloud operating systems. It does not affect QES. The exploit potentially enables remote authenticated administrators to run commands on the target system.

The Impact of CVE-2023-23355

The impact of this vulnerability, as per the CVSS v3.1 scoring system, is considered medium severity. The attack complexity is low, requiring high privileges, but it can lead to changes in system scope and compromise of confidentiality, integrity, and availability.

Technical Details of CVE-2023-23355

This vulnerability has been categorized under two Common Weakness Enumeration (CWE) types: CWE-77 and CWE-78, representing Improper Neutralization of Special Elements used in OS Command and Improper Neutralization of Special Elements used in File Name respectively.

Vulnerability Description

The CVE-2023-23355 vulnerability allows authenticated remote administrators to execute arbitrary commands on the compromised system through unspecified vectors.

Affected Systems and Versions

The impacted products identified in this CVE include QTS versions less than 5.0.1.2346 build 20230322 and 4.5.4.2374 build 20230416, QuTS hero versions less than h5.0.1.2348 build 20230324 and h4.5.4.2374 build 20230417, and QuTScloud version less than c5.0.1.2374.

Exploitation Mechanism

Remote authenticated administrators can exploit this vulnerability to execute unauthorized commands on affected systems, potentially leading to a security breach and compromise of the operational integrity of the systems.

Mitigation and Prevention

To mitigate the risk associated with CVE-2023-23355, immediate actions and long-term security practices are essential to safeguard the systems from potential attacks.

Immediate Steps to Take

Organizations should apply the available patches provided by QNAP Systems Inc. for the respective affected versions.
Monitor network traffic and system logs for any suspicious activities that may indicate exploitation attempts.
Restrict and monitor user permissions to minimize the impact of unauthorized access.

Long-Term Security Practices

Regularly update and patch operating systems and applications to prevent known vulnerabilities from being exploited.
Implement network segmentation and access controls to limit the reach of potential attackers within the network.
Conduct regular security assessments and penetration testing to identify and address any existing security gaps proactively.

Patching and Updates

QNAP Systems Inc. has released patches to address the CVE-2023-23355 vulnerability in the following versions:

QTS 5.0.1.2346 build 20230322 and later
QTS 4.5.4.2374 build 20230416 and later
QuTS hero h5.0.1.2348 build 20230324 and later
QuTS hero h4.5.4.2374 build 20230417 and later
QuTScloud c5.0.1.2374 and later

By promptly applying these patches and following recommended security practices, organizations can fortify their systems against potential exploits stemming from CVE-2023-23355.