CVE-2023-34038 : Security Advisory and Response

VMware Horizon Server contains an information disclosure vulnerability that could allow a malicious actor with network access to access internal network configuration details.

Understanding CVE-2023-34038

This section will cover what CVE-2023-34038 is, its impact, technical details, and mitigation strategies.

What is CVE-2023-34038?

CVE-2023-34038 is an information disclosure vulnerability found in VMware Horizon Server. It enables a malicious actor to potentially obtain sensitive information related to internal network configuration.

The Impact of CVE-2023-34038

The vulnerability poses a medium severity risk (CVSS Base Score: 5.3) as it could lead to unauthorized access to critical network configuration data, potentially compromising the confidentiality of the network.

Technical Details of CVE-2023-34038

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability in VMware Horizon Server allows malicious actors with network access to retrieve internal network configuration information, posing a risk to network confidentiality.

Affected Systems and Versions

VMware Horizon Server versions 2306, 2303, 2212, 2209, 2206, 2111.x, 2106, 2103, 2012, and 2006 are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by an attacker with network access, leveraging the flaw to retrieve sensitive network details.

Mitigation and Prevention

This section focuses on steps to mitigate the risk and prevent exploitation.

Immediate Steps to Take

Users are advised to update VMware Horizon Server to a patched version to address the information disclosure vulnerability. Additionally, monitoring network access and restricting unauthorized entry can help mitigate risks.

Long-Term Security Practices

Implementing regular security assessments, network monitoring, and access control measures can enhance the overall security posture to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories from VMware and promptly apply patches and updates to ensure the protection of VMware Horizon Server.