PT-2017-01: Information Disclosure in Rockwell Automation Micrologix 1100 and 1400 PLC
Vulnerable product
Micrologix 1100
Version: 1763-L16AWA, 1763-L16BBB, 763-L16BWA, 1763-L16DWD series A and B before 15.000
Micrologix 1400
Version: 1766-L32AWA, 1766-L32BWA, 1766-L32BWAA, 1766-L32BXB, 1766-L32BXBA, 1766-L32AWAA series A and B before 16.000
Links:
http://www.rockwellautomation.com/
Severity level
Severity level: Medium
Impact: Information Disclosure
Access Vector: Remote
CVSS v3:
Base Score: 6.5
Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVE: CVE-2016-9334
Software description
Rockwell Automation Micrologix 1100 and 1400 are programmable logic controllers.
Vulnerability description
The specialists of the Positive Research center have detected an Information Disclosure vulnerability in Rockwell Automation Micrologix 1100 and 1400 PLC.
Vulnerability in Allen-Bradly MicroLogix 1100 and 1400 allows remote attackers to obtain user credentials in clear text by sniffing browser-to-server traffic.
How to fix
Update the firmware of your device to the latest version
Advisory status
11.06.2015 - Vendor gets vulnerability details
05.01.2017 - Vendor releases fixed version and details
11.01.2017 - Public disclosure
Credits
The vulnerability was detected by Alexey Osipov, Ilya Karpov, Positive Research Center (Positive Technologies Company)
References
http://en.securitylab.ru/lab/PT-2017-01
https://ics-cert.us-cert.gov/advisories/ICSA-16-336-06
Reports on the vulnerabilities previously discovered by Positive Research:
http://www.ptsecurity.com/ww-en/analytics/threatscape/
http://en.securitylab.ru/lab/