CVE-2023-0776 Explained : Impact and Mitigation

This CVE, published by Baicells, highlights a remote code execution vulnerability in Baicells QRTB platform.

Understanding CVE-2023-0776

This vulnerability affects Baicells Nova 436Q, Nova 430E, Nova 430I, and Neutrino 430 LTE TDD eNodeB devices with firmware through QRTB 2.12.7. It allows for remote shell code exploitation via HTTP command injections, enabling attackers to execute commands with root permissions.

What is CVE-2023-0776?

This CVE involves a vulnerability in Baicells devices that can be exploited remotely through HTTP command injections, leading to the execution of commands with elevated privileges.

The Impact of CVE-2023-0776

The impact of this vulnerability is significant as it allows attackers to execute malicious commands with root permissions, potentially leading to unauthorized access, data theft, or further compromise of the affected devices.

Technical Details of CVE-2023-0776

This section delves into specific technical aspects of the CVE, outlining the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows for remote shell code exploitation through HTTP command injections in devices running firmware through QRTB 2.12.7, enabling the execution of commands with root permissions.

Affected Systems and Versions

Baicells devices including Nova 436Q, Nova 430E, Nova 430I, and Neutrino 430 LTE TDD eNodeB with firmware versions up to QRTB 2.12.7 are susceptible to this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious commands via HTTP requests, taking advantage of pre-login execution and gaining root-level access on the targeted devices.

Mitigation and Prevention

To address CVE-2023-0776 and enhance the security of Baicells devices, immediate steps, long-term security practices, and the importance of patching and updates should be considered.

Immediate Steps to Take

Disable or restrict access to web interfaces on Baicells devices.
Monitor network traffic for any suspicious activities.
Implement firewall rules to restrict unauthorized access.

Long-Term Security Practices

Regularly update firmware to the latest version.
Conduct security audits and vulnerability assessments periodically.
Educate system administrators and users on best security practices.

Patching and Updates

Baicells recommends that all customers running firmware versions up to QRTB 2.12.7 upgrade to the latest 2.12.8 firmware to mitigate the risk of exploitation and enhance the security posture of their devices.