PT-2015-16: Cross-site scripting in Rockwell Automation Micrologix 1100 and 1400 PLC

(PT-2015-16) Positive Technologies Security Advisory
Cross-site scripting in Rockwell Automation Micrologix 1100 and 1400 PLC

Vulnerable product

Micrologix 1100
Version: Series B before FRN 15.000

Micrologix 1400
Version: Series B before FRN 15.003


Severity level

Severity level: Medium
Impact: Cross-site scripting
Access Vector: Remote

CVSS v2:
Base Score: 4.3
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVE: CVE-2015-6488

Software description

Rockwell Automation Micrologix 1100 and 1400 are programmable logic controllers.

Vulnerability description

The specialists of the Positive Research center have detected a Cross-site scripting vulnerability in Rockwell Automation Micrologix 1100 and 1400 PLC.

Cross-site scripting vulnerability in the web server on Allen-Bradly MicroLogix 1100 and 1400 devices allows remote attackers to inject arbitrary Javascript or HTML code, which could be executed in the browser in the context of the current user.

How to fix

Update the firmware of your device to the latest version

Advisory status

11.06.2015 - Vendor gets vulnerability details
27.10.2015 - Vendor releases fixed version and details
03.12.2015 - Public disclosure


The vulnerability was detected by Ilya Karpov, 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+