PT-2015-16: 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

Links:
http://www.rockwellautomation.com/

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

Credits

The vulnerability was detected by Ilya Karpov, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2015-16
https://ics-cert.us-cert.gov/advisories/ICSA-15-300-03

Reports on the vulnerabilities previously discovered by Positive Research:

http://www.ptsecurity.com/research/advisory/
http://en.securitylab.ru/lab/

Threatscape