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CVE-2023-4149 : Exploit Details and Defense Strategies

CVE-2023-4149 pertains to an OS Command Injection vulnerability in WAGO Industrial Managed Switches, allowing remote attackers to gain full system control. Learn about the impact, affected versions, and mitigation steps.

This CVE-2023-4149 was published on November 21, 2023, by CERTVDE. It pertains to an OS Command Injection vulnerability found in WAGO Industrial Managed Switches. The vulnerability allows an unauthenticated remote attacker to inject arbitrary system commands and gain full system control with root privileges.

Understanding CVE-2023-4149

This vulnerability impacts the Industrial Managed Switch products by WAGO and poses a critical risk to affected systems.

What is CVE-2023-4149?

The vulnerability in the web-based management of WAGO Industrial Managed Switches enables an attacker to execute arbitrary system commands remotely without any authentication. These commands are executed with root privileges, giving the attacker full control over the system.

The Impact of CVE-2023-4149

The impact of this vulnerability is severe, as it allows attackers to take complete control of the affected systems. With the ability to inject and execute system commands with root privileges, unauthorized individuals can compromise the integrity and confidentiality of the system, leading to potential data breaches and system disruptions.

Technical Details of CVE-2023-4149

This section delves into the specifics of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in the handling of user requests in the web-based management interface of WAGO Industrial Managed Switches. It enables remote attackers to inject and execute arbitrary system commands with root privileges, granting them full control over the system.

Affected Systems and Versions

The vulnerability affects specific versions of Industrial Managed Switches by WAGO, including models 0852-0602, 0852-0603, and 0852-1605. Systems with versions lower than 1.0.6.S0 and 1.2.5.S0 are susceptible to this exploit.

Exploitation Mechanism

By exploiting this vulnerability, unauthenticated remote attackers can send crafted requests to the web-based management interface, leading to the injection and execution of malicious system commands. This manipulation grants the attacker unauthorized control over the affected systems.

Mitigation and Prevention

To safeguard systems from CVE-2023-4149, proactive measures need to be implemented promptly to mitigate the risk of exploitation and protect system integrity.

Immediate Steps to Take

        Organizations using affected WAGO Industrial Managed Switches should immediately apply security patches provided by the vendor to remediate this vulnerability.
        Implement network segmentation and access controls to limit exposure to external threats.
        Monitor network traffic and system logs for any suspicious activity that could indicate exploitation attempts.

Long-Term Security Practices

        Regularly update and patch all software and firmware to ensure systems are equipped with the latest security enhancements.
        Conduct routine security audits and vulnerability assessments to identify and address potential risks proactively.
        Provide cybersecurity training to employees to enhance awareness of social engineering tactics and potential threats.

Patching and Updates

WAGO has released patches to address the OS Command Injection vulnerability in affected Industrial Managed Switch models. Organizations are strongly advised to apply these patches promptly to mitigate the risk of exploitation and secure their systems from unauthorized access.

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