CVE-2021-37165 : What You Need to Know
Discover the details of CVE-2021-37165, a buffer overflow vulnerability in Swisslog Healthcare Nexus Panel enabling remote code execution. Learn about impacts, affected systems, and mitigation steps.
A buffer overflow vulnerability was identified in the HMI3 Control Panel in Swisslog Healthcare Nexus Panel prior to Nexus Software 7.2.5.7. This flaw could be exploited to achieve remote code execution.
Understanding CVE-2021-37165
This section provides insights into the nature and implications of the CVE-2021-37165 vulnerability.
What is CVE-2021-37165?
The CVE-2021-37165 vulnerability exists in the HMI3 Control Panel of the Swisslog Healthcare Nexus Panel. It arises from a buffer overflow issue that occurs when a message is transmitted to the HMI TCP socket, subsequently leading to the hmiProcessMsg function through pendingQ, which could result in the execution of arbitrary code.
The Impact of CVE-2021-37165
If exploited, this vulnerability could allow an attacker to remotely execute arbitrary code on the affected system. This could potentially lead to unauthorized access, data breaches, or other malicious activities.
Technical Details of CVE-2021-37165
This section delves deeper into the technical aspects of the CVE-2021-37165 vulnerability.
Vulnerability Description
The vulnerability results from a buffer overflow issue in the HMI3 Control Panel, presenting a risk of remote code execution when specific messages are handled.
Affected Systems and Versions
The vulnerability affects Swisslog Healthcare Nexus Panel installations running software versions before Nexus Software 7.2.5.7.
Exploitation Mechanism
Exploitation of this vulnerability involves sending a crafted message to the HMI TCP socket, which triggers the vulnerable hmiProcessMsg function, potentially leading to the execution of malicious code.
Mitigation and Prevention
This section outlines steps to mitigate the risks associated with CVE-2021-37165.
Immediate Steps to Take
It is recommended to update the affected systems to the latest version of Nexus Software 7.2.5.7 or later to address the vulnerability. Additionally, network segmentation and access control measures can help reduce the attack surface.
Long-Term Security Practices
Implementing regular security updates, conducting security assessments, and employing secure coding practices can enhance the overall security posture and resilience of the systems.
Patching and Updates
Stay informed about security advisories from Swisslog Healthcare and apply patches promptly to safeguard against known vulnerabilities.