CVE-2018-12981 Explained : Impact and Mitigation

A flaw in the firmware versions prior to FW 02 of WAGO e!DISPLAY devices 762-3000 to 762-3003 allows code injection through specially crafted requests to the web server.

Understanding CVE-2018-12981

This CVE involves a vulnerability in WAGO e!DISPLAY devices that can be exploited by authenticated and unauthenticated users.

What is CVE-2018-12981?

The vulnerability allows the injection of code within the WBM of affected devices.
Both authenticated and unauthenticated users can exploit this flaw.

The Impact of CVE-2018-12981

Attackers can inject malicious code, which will be displayed and/or executed in the user's browser.

Technical Details of CVE-2018-12981

The following technical details provide insight into the vulnerability.

Vulnerability Description

An issue in WAGO e!DISPLAY 762-3000 through 762-3003 devices allows code injection via crafted web server requests.

Affected Systems and Versions

Firmware versions prior to FW 02 of WAGO e!DISPLAY devices 762-3000 to 762-3003.

Exploitation Mechanism

Injection of code within the WBM through specially crafted requests to the web server.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2018-12981.

Immediate Steps to Take

Update the firmware to version FW 02 or later.
Monitor network traffic for any suspicious activity.
Restrict access to the web server to authorized personnel only.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security audits and penetration testing to identify and address weaknesses.

Patching and Updates

Apply patches and updates provided by the vendor to address the vulnerability.