PT-2018-02: Improper Authorization in PHOENIX CONTACT FL SWITCH Vulnerable products PHOENIX CONTACT FL SWITCH 3xxx, 4xxx, and 48xxx Version: 1.32 and earlier Link: https://www.phoenixcontact.com/ Severity level Severity level: High Impact: Privilege Gaining 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-2017-16743 Vulnerability description The specialists of the Positive Research center have detected an Improper Authorization vulnerability in PHOENIX CONTACT FL SWITCH. An Improper Authorization issue in PHOENIX CONTACT FL SWITCH products allows remote unauthenticated attackers to bypass web-service authentication and obtain administrative privileges on the device via specially crafted HTTP requests. How to fix Update firmware to the latest version Advisory status 02.08.2017 - Vendor gets vulnerability details 11.01.2018 - Vendor releases fixed version and details 22.01.2018 - Public disclosure Credits The vulnerability was detected by Ilya Karpov and Evgeniy Druzhinin, Positive Research Center (Positive Technologies Company) References http://en.securitylab.ru/lab/PT-2018-02 https://ics-cert.us-cert.gov/advisories/ICSA-18-011-03 https://cert.vde.com/de-de/advisories/vde-2017-006 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 digital security firm with over 15 years of experience in 360° protection of critical IT systems against the most advanced cyberthreats. State-of-the-art solutions are developed at the company's research center—one of the largest in Europe. Positive Technologies experts have helped to identify and fix over 250 zero-day vulnerabilities in products from Cisco, Google, Honeywell, Huawei, Microsoft, Oracle, SAP, Schneider Electric, Siemens, and others, earning a reputation for world-class expertise in protection of devices and infrastructures at all scales from ATMs to nuclear power stations. Findings by Positive Technologies researchers are used for updating the MaxPatrol knowledge base and for development of security solutions including PT Application Firewall, PT Application Inspector, MaxPatrol. These products allow securing web applications, evaluating network protection, blocking attacks in real time, ensuring compliance with industry and national standards, and training security specialists. Positive Technologies is the organizer of the annual Positive Hack Days international forum and security competition.
