Advantech · Advantech Webaccess · CVE-2023-2866
**Name of the Vulnerable Software and Affected Versions**
Advantech WebAccess version 8.4.5
**Description**
The issue is related to insufficient authentication data validation in the software. An attacker could exploit this by tricking an authenticated user into loading a maliciously crafted .zip file, potentially allowing the attacker to execute arbitrary code and gain full control of the SCADA server.
**Recommendations**
For Advantech WebAccess version 8.4.5, consider restricting access to loading .zip files until a patch is available. As a temporary workaround, limit the privileges of authenticated users to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.