CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
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
83.9%
Vulnerable software
PRTG Network Monitor
Version: 18.3.43.2323 and earlier
Link:
<https://www.paessler.com/prtg>
Severity level
Severity level: High
Impact: Remote Code Execution
Access Vector: Remote
CVSS v3:
Base Score: 9.1
Vector: (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
CVE: CVE-2018-19204
Vulnerability description
The specialists of the Positive Research center have detected a Remote Code Execution vulnerability in PRTG Network Monitor.
Vulnerability due to improper handling of user input in the POST parameter βproxyport_β allows remote authenticated attackers with read-write privileges to execute an arbitrary code and OS commands with system privileges. Using a specially crafted HTTP request an attacker can override the βwriteresultβ command-line parameter for the HttpAdvancedSensor.exe executable file and write arbitrary data to an arbitrary file-system location, as demonstrated by creating an executable file in the \Custom Sensors\EXE directory and executing it through creation of EXE/Script Sensor.
How to fix
Update your software up to the latest version
Advisory status
25.05.2018 - Vendor gets vulnerability details
24.09.2018 - Vendor releases fixed version and details
25.10.2018 - Public disclosure
Credits
The vulnerability was detected by Anton Vaychikauskas, Dmitry Galecha, Positive Research Center (Positive Technologies Company)
References
<http://en.securitylab.ru/lab/PT-2018-23>
<https://www.paessler.com/prtg/history/stable#18.3.44.2054>
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
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
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
83.9%