PT-2018-25: Improper Authorization in PRTG Network Monitor Vulnerable software PRTG Network Monitor Version: 18.2.39.1661 and earlier Link: https://www.paessler.com/prtg Severity level Severity level: High Impact: Improper Authorization Access Vector: Remote CVSS v3: Base Score: 8.8 Vector: (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVE: CVE-2018-19411 Vulnerability description The specialists of the Positive Research center have detected an Improper Authorization vulnerability in PRTG Network Monitor. Vulnerability due to improper validation of user rights allows attackers with read-only privileges to create users with read-write privileges including administrators via a specially crafted HTTP request to /api/addusers. How to fix Update your software up to the latest version Advisory status 25.05.2018 - Vendor gets vulnerability details 07.05.2018 - Vendor releases fixed version and details 26.10.2018 - Public disclosure Credits The vulnerability was detected by Anton Vaychikauskas, Positive Research Center (Positive Technologies Company) References http://en.securitylab.ru/lab/PT-2018-25 https://www.paessler.com/prtg/history/stable#18.2.40.1683 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.
