CVE-2021-23233 : Security Advisory and Response

A high-severity vulnerability has been identified in the Fresenius Kabi Agilia Connect Infusion System, allowing unauthenticated access to sensitive endpoints, potentially leading to critical actions or configuration modifications by attackers.

Understanding CVE-2021-23233

This CVE discloses a security flaw in the Agilia Link+ product from Fresenius Kabi, enabling unauthorized access to critical system components without proper authentication.

What is CVE-2021-23233?

The vulnerability in Agilia Link+ allows attackers to interact with sensitive endpoints without authentication, posing a significant risk to the integrity and confidentiality of the system.

The Impact of CVE-2021-23233

With a base severity score of 7.3 (High), the vulnerability can be exploited remotely by threat actors to compromise system integrity and carry out unauthorized activities without the need for prior privileges.

Technical Details of CVE-2021-23233

The description of the vulnerability highlights that malicious actors can manipulate critical system configurations by sending unauthorized requests to sensitive endpoints without the required authentication.

Vulnerability Description

Sensitive endpoints in Fresenius Kabi Agilia Link+ v3.0 and earlier versions are accessible without authentication, creating opportunities for unauthorized critical action.

Affected Systems and Versions

The affected product by Fresenius Kabi is Agilia Link+, specifically versions less than 3.0, including unspecified custom versions.

Exploitation Mechanism

Attackers can exploit this flaw via low-complexity network attacks without the need for user interaction, potentially leading to confidentiality, integrity, and availability issues.

Mitigation and Prevention

To address this vulnerability, Fresenius Kabi has released new versions of the affected products and provided guidance on necessary preventive measures.

Immediate Steps to Take

Users are urged to update to the latest versions of the impacted products promptly to mitigate the risk of exploitation and enhance system security.

Long-Term Security Practices

In addition to immediate updates, implementing network segmentation, access controls, and security best practices can help prevent unauthorized access and protect against potential threats.

Patching and Updates

Fresenius Kabi recommends contacting them for guidance on upgrading to the latest firmware versions to address the vulnerability. In case of early Link+ devices requiring hardware changes, interim measures in line with CISA recommendations are advised.