An Information Exposure through Discrepancy vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where the web server sends different responses in a way that exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the change password function of the web server

An Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’) vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 allowing an attacker to craft a URL containing JavaScript that will be executed within the user’s browser, potentially impacting the machine the browser is running on.

An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the password delete function of the web server.

Data Center Expert, versions 7.5.0 and earlier, allows for the upload of a zip file from its user interface to the server. A carefully crafted, malicious file could be mistakenly uploaded by an authenticated user via this feature which could contain path traversal file names. As such, it could allow for the arbitrary upload of files contained with the zip onto the server file system outside of the intended directory. This is leveraging the more commonly known ZipSlip vulnerability within Java code.

Data Center Operation allows for the upload of a zip file from its user interface to the server. A carefully crafted, malicious file could be mistakenly uploaded by an authenticated user via this feature which could contain path traversal file names. As such, it could allow for the arbitrary upload of files contained with the zip onto the server file system outside of the intended directory. This is leveraging the more commonly known ZipSlip vulnerability within Java code.