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CVE-2020-27158 : Security Advisory and Response

Learn about CVE-2020-27158, a critical vulnerability in Western Digital My Cloud NAS devices allowing remote code execution. Find out how to mitigate and prevent exploitation.

A remote code execution vulnerability in Western Digital My Cloud NAS devices prior to version 5.04.114.

Understanding CVE-2020-27158

A vulnerability that could allow an attacker to execute code remotely on affected devices.

What is CVE-2020-27158?

The vulnerability exists in cgi_api.php, enabling privilege escalation on Western Digital My Cloud NAS devices.

The Impact of CVE-2020-27158

This vulnerability could lead to unauthorized remote code execution and potential escalation of privileges on the affected devices.

Technical Details of CVE-2020-27158

A detailed look at the technical aspects of this CVE.

Vulnerability Description

The vulnerability allows attackers to execute code remotely through cgi_api.php on Western Digital My Cloud NAS devices.

Affected Systems and Versions

        Western Digital My Cloud NAS devices prior to version 5.04.114

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted requests to the cgi_api.php script, potentially leading to privilege escalation.

Mitigation and Prevention

Measures to address and prevent exploitation of CVE-2020-27158.

Immediate Steps to Take

        Update affected devices to version 5.04.114 or later to patch the vulnerability.
        Monitor network traffic for any suspicious activity that could indicate exploitation.

Long-Term Security Practices

        Regularly update firmware and software on network-attached storage devices.
        Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

        Apply security patches and updates provided by Western Digital to address known vulnerabilities.

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