PT-2018-14: Buffer Overflow in PHOENIX CONTACT FL SWITCH Vulnerable products PHOENIX CONTACT FL SWITCH 3xxx, 4xxx, and 48xxx Firmware version: 1.33 and earlier Link: https://www.phoenixcontact.com/ Severity level Severity level: High Impact: Arbitrary Code Execution Access Vector: Remote CVSS v3: Base Score: 9.0 Vector: (AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H) CVE: CVE-2018-10731 Vulnerability description The specialists of the Positive Research center have detected a Buffer Overflow vulnerability in PHOENIX CONTACT FL SWITCH. A buffer overflow vulnerability in Phoenix Contact managed FL SWITCH due to improper handling of very large cookies allows attackers to obtain unauthorized access to the device’s operating system and inject executable code. How to fix Update firmware to the latest version Advisory status 22.02.2018 - Vendor gets vulnerability details 16.05.2018 - Vendor releases fixed version and details 29.08.2018 - Public disclosure Credits The vulnerability was detected by Vyacheslav Moskvin, Semen Sokolov, Positive Research Center (Positive Technologies Company) References http://en.securitylab.ru/lab/PT-2018-14 https://www.ptsecurity.com/ru-ru/about/news/293446/ https://ics-cert.us-cert.gov/advisories/ICSA-18-137-02 https://cert.vde.com/en-us/advisories/vde-2018-007 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.
