CVE-2023-24583 : Security Advisory and Response

This CVE-2023-24583 article provides insights into a critical vulnerability present in Milesight UR32L v32.3.0.5, allowing arbitrary command execution through specially crafted network requests.

Understanding CVE-2023-24583

The CVE-2023-24583 vulnerability involves two OS command injection weaknesses in the urvpn_client cmd_name_action functionality of Milesight UR32L v32.3.0.5. An attacker can exploit these vulnerabilities by sending a network request to trigger arbitrary command execution via a UDP packet.

What is CVE-2023-24583?

CVE-2023-24583 is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection'). It signifies a critical flaw that allows threat actors to execute malicious commands on the affected system remotely.

The Impact of CVE-2023-24583

The CVSSv3.1 score for CVE-2023-24583 is 8.8, reflecting a high severity level. The vulnerability poses a significant risk as it requires no privileges for exploitation and can lead to severe confidentiality, integrity, and availability impacts on the target system.

Technical Details of CVE-2023-24583

The following technical details shed light on the vulnerability's nature:

Vulnerability Description

The vulnerability in Milesight UR32L v32.3.0.5 enables attackers to execute arbitrary commands remotely through specially crafted network requests, compromising the system's security.

Affected Systems and Versions

Only Milesight UR32L version v32.3.0.5 is impacted by this vulnerability, putting systems running this specific version at risk of exploitation.

Exploitation Mechanism

Exploiting CVE-2023-24583 involves sending a specifically crafted network request to the urvpn_client cmd_name_action functionality of the affected system, leading to the execution of arbitrary commands through a UDP packet.

Mitigation and Prevention

Understanding the potential risks associated with CVE-2023-24583, it is crucial to implement timely mitigation measures and follow robust security practices to safeguard systems from exploitation.

Immediate Steps to Take

Isolate Affected Systems: Consider isolating the vulnerable system from the network to prevent unauthorized access.
Apply Security Patches: Check for updates or patches provided by the vendor to address the vulnerability promptly.
Monitor Network Traffic: Monitor network traffic for any suspicious activities or unauthorized access attempts.

Long-Term Security Practices

Regular Security Audits: Conduct regular security audits to identify and address vulnerabilities proactively.
Employee Training: Educate employees on cybersecurity best practices, including identifying and reporting suspicious activities.
Network Segmentation: Implement network segmentation to limit the impact of potential security breaches.

Patching and Updates

Stay informed about security updates and patches released by Milesight for UR32L v32.3.0.5. Ensure timely installation of these updates to mitigate the risks associated with CVE-2023-24583 and enhance overall system security.