#VU16206 Improper input validation in PRTG Network Monitor - CVE-2018-19203

Vulnerability identifier: #VU16206

Vulnerability risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-19203

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PRTG Network Monitor
Server applications / Remote management servers, RDP, SSH

Vendor: Paessler AG

Description

The vulnerability allows a remote attacker to cause DoS condition.

The vulnerability exists due to an error when processing malicious input. A remote attacker can send a specially crafted HTTP request and terminate the PRTG Core Server Service resulting in denial of service.

Mitigation
Update to version 18.2.41.1652.

Vulnerable software versions

PRTG Network Monitor: 18.1.36.3728 - 18.1.39.1648, 18.2.39 - 18.2.40.1683

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External links
https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2018-22/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.