PT-2018-25: Improper Authorization in PRTG Network Monitor
PRTG Network Monitor
Version: 188.8.131.521 and earlier
Severity level: High
Impact: Improper Authorization
Access Vector: Remote
Base Score: 8.8
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
25.05.2018 - Vendor gets vulnerability details
07.05.2018 - Vendor releases fixed version and details
26.10.2018 - Public disclosure
The vulnerability was detected by Anton Vaychikauskas, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research:
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.