Reflected Cross-Site Scripting (nonpersistent) allows an attacker to craft a specific URL, which contains Java script that will be executed on the Schneider Electric Modicon BMXNOC0401, BMXNOE0100, BMXNOE0110, BMXNOE0110H, BMXNOR0200H, BMXP342020, BMXP342020H, BMXP342030, BMXP3420302, BMXP3420302H, or BMXP342030H PLC client browser.

Remote file inclusion allows an attacker to craft a specific URL referencing the Schneider Electric Modicon BMXNOC0401, BMXNOE0100, BMXNOE0110, BMXNOE0110H, BMXNOR0200H, BMXP342020, BMXP342020H, BMXP342030, BMXP3420302, BMXP3420302H, or BMXP342030H PLC web server, which, when launched, will result in the browser redirecting to a remote file via a Java script loaded with the web page.

A vulnerability exists in the web services to process SOAP requests in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200 which could allow result in a buffer overflow.

A vulnerability exists in the HTTP request parser in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200 which could allow arbitrary code execution.

An authorization bypass vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. Requests to CGI functions allow malicious users to bypass authorization.

A buffer overflow vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. The buffer overflow vulnerability is caused by the length of the source string specified (instead of the buffer size) as the number of bytes to be copied.

Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the communication modules. The algorithm used to encrypt the password is vulnerable to hash collision attacks.

Hard coded accounts exist in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the communication modules.

Directory traversal vulnerability in SchneiderWEB on Schneider Electric Modicon PLC Ethernet modules 140CPU65x Exec before 5.5, 140NOC78x Exec before 1.62, 140NOE77x Exec before 6.2, BMXNOC0401 before 2.05, BMXNOE0100 before 2.9, BMXNOE0110x Exec before 6.0, TSXETC101 Exec before 2.04, TSXETY4103x Exec before 5.7, TSXETY5103x Exec before 5.9, TSXP57x ETYPort Exec before 5.7, and TSXP57x Ethernet Copro Exec before 5.5 allows remote attackers to visit arbitrary resources via a crafted HTTP request.

The Schneider Electric M340 PLC modules allow remote attackers to cause a denial of service (resource consumption) via unspecified vectors. NOTE: the vendor reportedly disputes this issue because it "could not be duplicated" and "an attacker could not remotely exploit this observed behavior to deny PLC control functions.