CVE-2023-48248 : Security Advisory and Response

A detailed look into CVE-2023-48248 affecting Rexroth Nexo cordless nutrunners and the associated CVE-79 vulnerability.

Understanding CVE-2023-48248

This section explores the impact, technical details, and mitigation strategies for CVE-2023-48248.

What is CVE-2023-48248?

The vulnerability allows an authenticated remote attacker to upload a malicious file to the SD card containing arbitrary client-side script code and obtain its execution inside a victim’s session via a crafted URL, HTTP request, or simply by waiting for the victim to view the poisoned file.

The Impact of CVE-2023-48248

The impact is rated as medium with a CVSS base score of 5.5. It can lead to the execution of arbitrary code within a victim's session, posing a risk to confidentiality, integrity, and availability.

Technical Details of CVE-2023-48248

This section covers vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper neutralization of input during web page generation, specifically 'Cross-site Scripting' (CWE-79).

Affected Systems and Versions

Multiple models of Rexroth Nexo cordless nutrunners running NEXO-OS V1000-Release up to NEXO-OS V1500-SP2 are affected.

Exploitation Mechanism

Attackers can exploit the vulnerability by uploading and executing malicious files on the SD card, triggering the execution of client-side scripts within a victim's session.

Mitigation and Prevention

This section outlines immediate steps to take and long-term security practices to safeguard against CVE-2023-48248.

Immediate Steps to Take

Users should apply patches from the vendor to mitigate the vulnerability. Additionally, restricting access to affected systems and implementing URL filtering can help reduce the risk.

Long-Term Security Practices

Developers can follow secure coding practices, perform regular security assessments, and conduct security training to enhance overall cybersecurity posture.

Patching and Updates

Regularly check for security updates and patches from Rexroth to address known vulnerabilities and enhance the security of the affected systems.