PT-2018-06: Authentication Bypass in Hirschmann Automation and Control GmbH Classic Platform Switches

(PT-2018-06) Positive Technologies Security Advisory
Authentication Bypass in Hirschmann Automation and Control GmbH Classic Platform Switches

Vulnerable products

RS
Version: all versions
RSR
Version: all versions
RSB
Version: all versions
MACH100
Version: all versions
MACH1000
Version: all versions
MACH4000
Version: all versions
MS
Version: all versions
OCTOPUS
Version: all versions

Link:
http://www.hirschmann.com/

Severity level

Severity level: High
Impact: Authentication Bypass
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-2018-5469

Vulnerability description

The specialists of the Positive Research center have detected an Authentication Bypass vulnerability in Hirschmann Automation and Control GmbH Classic Platform Switches.

Vulnerability in the web interface of Belden Hirschmann RS, RSR, RSB, MACH100, MACH1000, MACH4000, MS, and OCTOPUS Classic Platform Switches, due to improper restriction of excessive authentication attempts, allows attackers to bruteforce authentication.

How to fix

Use the recommendations

Advisory status

16.03.2017 - Vendor gets vulnerability details
06.03.2018 - Vendor releases fixed version and details
28.04.2018 - Public disclosure

Credits

The vulnerability was detected by Ilya Karpov, Evgeniy Druzhinin, and Damir Zainullin, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2018-06

Reports on the vulnerabilities previously discovered by Positive Research:

https://www.ptsecurity.com/
https://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+