CVE-2021-21983 : Security Advisory and Response

An arbitrary file write vulnerability in VMware vRealize Operations Manager API prior to 8.4 can allow an authenticated malicious actor to write files to arbitrary locations on the underlying photon operating system.

Understanding CVE-2021-21983

This section delves into the details of the CVE-2021-21983 vulnerability.

What is CVE-2021-21983?

CVE-2021-21983 is an arbitrary file write vulnerability in VMware vRealize Operations Manager API that enables an authenticated malicious actor to write files to any location on the system.

The Impact of CVE-2021-21983

The exploit could be used by a threat actor with network access to vRealize Operations Manager API to compromise the security and integrity of the underlying system.

Technical Details of CVE-2021-21983

Let's explore the technical aspects of CVE-2021-21983.

Vulnerability Description

The vulnerability allows an attacker to write files to arbitrary locations on the underlying photon operating system using the vRealize Operations Manager API.

Affected Systems and Versions

VMware vRealize Operations versions prior to 8.4 are impacted by this vulnerability.

Exploitation Mechanism

An authenticated malicious actor with network access to the vRealize Operations Manager API can exploit this vulnerability.

Mitigation and Prevention

This section outlines the preventive measures to secure systems from CVE-2021-21983.

Immediate Steps to Take

Organizations should update to VMware vRealize Operations 8.4 or later to mitigate the vulnerability. Additionally, restrict network access to the vRealize Operations Manager API.

Long-Term Security Practices

Regularly monitor for security advisories from VMware and apply patches promptly. Conduct security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

Ensure timely patching of systems and keep all software up to date to prevent exploitation of known vulnerabilities.