CVE-2019-5538 : Security Advisory and Response

A vulnerability in VMware vCenter Server Appliance (versions 6.7 prior to 6.7u3a and 6.5 prior to 6.5u3d) has been identified, potentially leading to the disclosure of sensitive information during File-Based Backup and Restore operations.

Understanding CVE-2019-5538

This CVE involves an information disclosure vulnerability in VMware vCenter Server Appliance, allowing interception of sensitive data during specific operations.

What is CVE-2019-5538?

The vulnerability arises from a lack of certificate validation during File-Based Backup and Restore operations, enabling a man-in-the-middle attacker to intercept data transmitted over SCP.

The Impact of CVE-2019-5538

The vulnerability may result in the exposure of sensitive data during backup and restore processes, posing a risk to the confidentiality of information.

Technical Details of CVE-2019-5538

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in VMware vCenter Server Appliance allows malicious actors to intercept sensitive data during File-Based Backup and Restore operations due to inadequate certificate validation.

Affected Systems and Versions

Product: VMware vCenter Server Appliance
Versions Affected: 6.7 before 6.7u3a and 6.5 before 6.5u3d

Exploitation Mechanism

Attackers with man-in-the-middle positioning can exploit the lack of certificate validation to intercept data transmitted over SCP during backup and restore operations.

Mitigation and Prevention

Protective measures to address CVE-2019-5538.

Immediate Steps to Take

Apply security patches provided by VMware promptly.
Monitor network traffic for any signs of unauthorized access.
Implement secure communication protocols to prevent data interception.

Long-Term Security Practices

Regularly update and patch VMware vCenter Server Appliance to mitigate known vulnerabilities.
Conduct security audits and assessments to identify and address potential weaknesses.

Patching and Updates

Stay informed about security advisories from VMware and apply patches as soon as they are released.