CVE-2023-32540 : What You Need to Know

A file overwrite vulnerability in Advantech WebAccess/SCADA versions prior to v9.1.3 could allow an attacker to overwrite any file in the operating system, inject code into an XLS file, and trigger arbitrary code execution.

Understanding CVE-2023-32540

This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2023-32540?

The arbitrary file overwrite vulnerability in Advantech WebAccess/SCADA versions before v9.1.3 enables attackers to manipulate system files, leading to potential code execution.

The Impact of CVE-2023-32540

The vulnerability poses a high severity risk with a CVSS v3.1 base score of 7.2 due to its potential for high impact on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2023-32540

The following details shed light on the vulnerability specifics.

Vulnerability Description

The flaw allows attackers to overwrite any file in the operating system, inject code into XLS files, and modify file extensions, paving the way for arbitrary code execution.

Affected Systems and Versions

Advantech WebAccess/SCADA versions up to v9.1.3 are impacted, with systems running these versions vulnerable to exploitation.

Exploitation Mechanism

The vulnerability can be exploited remotely with low attack complexity, high privileges required, and no user interaction, making it a critical concern for affected users.

Mitigation and Prevention

Understanding the necessary steps to mitigate the risk and prevent future occurrences.

Immediate Steps to Take

Advantech recommends upgrading to version v9.1.4 to address the vulnerability and enhance system security.

Long-Term Security Practices

Regularly updating software and implementing security measures can help prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and promptly apply patches to safeguard systems from potential cyber threats.