CVE-2023-48696 Explained : Impact and Mitigation
Learn about CVE-2023-48696 involving a remote code execution vulnerability in Azure RTOS USBX. Understand the impact, affected systems, and mitigation steps.
Azure RTOS USBX Remote Code Execution Vulnerability
Understanding CVE-2023-48696
This CVE involves a remote code execution vulnerability in Azure RTOS USBX.
What is CVE-2023-48696?
Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack, integrated with Azure RTOS ThreadX. This vulnerability allows an attacker to execute remote code due to expired pointer dereference vulnerabilities in Azure RTOS USBX. The affected components include the components in the host class, specifically related to CDC ACM in RTOS versions 6.2.1 and below. The recommended action is to upgrade to USBX release 6.3.0 as there are no known workarounds.
The Impact of CVE-2023-48696
The impact of this vulnerability is significant as it enables an attacker to execute remote code on affected systems. This could result in unauthorized access, data breaches, and other malicious activities.
Technical Details of CVE-2023-48696
This section provides more technical details about the vulnerability.
Vulnerability Description
The vulnerability arises from expired pointer dereference issues in Azure RTOS USBX, allowing remote code execution.
Affected Systems and Versions
The affected systems include Azure RTOS USBX versions below 6.3.0, specifically components in the host class related to CDC ACM in RTOS v6.2.1 and lower.
Exploitation Mechanism
The exploitation involves leveraging the expired pointer dereference vulnerabilities to execute remote code on vulnerable systems.
Mitigation and Prevention
To protect systems from CVE-2023-48696, follow the recommended mitigation strategies.
Immediate Steps to Take
- Upgrade to USBX release 6.3.0 to address the vulnerability.
Long-Term Security Practices
- Regularly update software and firmware to the latest versions to patch known vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
- Stay informed about security advisories and patches released by Azure RTOS and promptly apply updates to mitigate security risks.