PT-2017-52: 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, versions 16.00 and earlier Micrologix 1400 Version: 1766-L32AWA, 1766-L32BWA, 1766-L32BWAA, 1766-L32BXB, 1766-L32BXBA, 1766-L32AWAA series A and B, versions 16.00 and earlier Link: http://www.rockwellautomation.com/ Severity level Severity level: High Impact: Information Disclosure Access Vector: Remote CVSS v3: Base Score: 9.8 Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVE: CVE-2017-7899 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 programmable-logic controllers, caused by sending user credentials to the web server using a HTTP GET method, allows attackers to obtain sensitive user data. How to fix Use vendor's advisory: https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 Advisory status 27.10.2015 - Vendor gets vulnerability details 23.05.2017 - Vendor releases fixed version and details 26.12.2017 - Public disclosure Credits The vulnerability was detected by Ilya Karpov, Positive Research Center (Positive Technologies Company) References http://en.securitylab.ru/lab/PT-2017-52 Reports on the vulnerabilities previously discovered by Positive Research: http://www.ptsecurity.com/ http://en.securitylab.ru/lab/ 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 www.ptsecurity.com *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+