CVE-2021-27483 : Security Advisory and Response

A vulnerability labeled as CVE-2021-27483 has been identified in the ZOLL Defibrillator Dashboard software. This vulnerability exists in all versions of the software prior to version 2.2, allowing a lower privilege user to escalate privileges to an administrative level user due to insecure filesystem permissions.

Understanding CVE-2021-27483

This section delves into the details of the CVE-2021-27483 vulnerability, outlining its impact and technical aspects.

What is CVE-2021-27483?

The CVE-2021-27483 vulnerability is categorized under the IMPROPER PRIVILEGE MANAGEMENT CWE-269. It stems from insecure filesystem permissions in the ZOLL Defibrillator Dashboard software versions prior to 2.2, which could facilitate privilege escalation.

The Impact of CVE-2021-27483

The impact of CVE-2021-27483 is significant as it enables a lower privilege user to elevate their permissions to that of an administrative level user. This could lead to unauthorized access and control over critical functions within the software.

Technical Details of CVE-2021-27483

In this section, we provide a deeper insight into the technical aspects of the CVE-2021-27483 vulnerability.

Vulnerability Description

The vulnerability arises from the inadequate handling of filesystem permissions in the affected versions of the ZOLL Defibrillator Dashboard software, allowing for privilege escalation.

Affected Systems and Versions

All versions of the ZOLL Defibrillator Dashboard software prior to version 2.2 are impacted by CVE-2021-27483. Users utilizing these versions are at risk of privilege escalation attacks.

Exploitation Mechanism

Exploiting CVE-2021-27483 requires the attacker to leverage the insecure filesystem permissions present in the software, enabling them to escalate their user privileges.

Mitigation and Prevention

This section provides crucial information on how to mitigate the risks associated with CVE-2021-27483 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update their ZOLL Defibrillator Dashboard software to version 2.2 or newer to remediate the vulnerability. Additionally, restricting access to privileged functions can help mitigate the risk of exploitation.

Long-Term Security Practices

Implementing least privilege principles and regular security audits can enhance the overall security posture of systems, reducing the likelihood of privilege escalation vulnerabilities.

Patching and Updates

Regularly monitoring for software updates and promptly applying patches released by the vendor is essential to ensure that known vulnerabilities like CVE-2021-27483 are addressed effectively.