CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
42.8%
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 360Β° protection of critical IT systems against the most advanced cyberthreats. State-of-the-art solutions are developed at the companyβs research centerβone 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.
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
42.8%