PT-2013-81: Cross-Site Request Forgery in Siemens SIMATIC S7-1500 CPU PLC

(PT-2013-81) Positive Technologies Security Advisory
Cross-Site Request Forgery in Siemens SIMATIC S7-1500 CPU PLC

Vulnerable platform

Siemens SIMATIC S7-1500 CPU PLC
Version: 1.1.x and earlier


Severity level

Severity level: Medium
Impact: Cross-Site Request Forgery
Access Vector: Remote

CVSS v2:
Base Score: 5.8
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:P)

CVE: CVE-2014-2249

Platform description

Siemens SIMATIC S7-1500 - controllers featuring high efficiency in data processing, integrated technological functions of Motion Control, PID control and the use of high-speed counters..

Vulnerability description

The specialists of the Positive Research center have detected a Cross-Site Request Forgery vulnerability in Siemens SIMATIC S7-1500 CPU PLC.

The web server of the affected PLCs (port 80/tcp and port 443/tcp) might allow CSRF (Cross-Site Request Forgery) attacks, compromising integrity and availability of the affected device.

How to fix

Update your firmware up to the latest version

Advisory status

05.08.2013 - Vendor gets vulnerability details
12.03.2014 - Vendor releases fixed version and details
25.03.2014 - Public disclosure


The vulnerability was detected by Dmitry Serebryannikov, Ilya Karpov, Alexey Osipov, Yury Goltsev, and Alexander Timorin, Positive Research Center (Positive Technologies Company)


Reports on the vulnerabilities previously discovered by Positive Research:

About Positive Technologies

Positive Technologies is a leading provider of vulnerability assessment, compliance management and threat analysis solutions to more than 1,000 global enterprise clients. Our solutions work seamlessly across your entire business: securing applications in development; assessing your network and application vulnerabilities; assuring compliance with regulatory requirements; and blocking real-time attacks. Our commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on SCADA, Banking, Telecom, Web Application and ERP security, and distinction as the #1 fastest growing Security and Vulnerability Management firm in 2012, as shown in an IDC report*. To learn more about Positive Technologies please visit

*Source: IDC Worldwide Security and Vulnerability Management 2013-2017 Forecast and 2012 Vendor Shares, doc #242465, August 2013. Based on year-over-year revenue growth in 2012 for vendors with revenues of $20M+