#VU9374 Denial of service in Moxa products - CVE-2017-16719

Vulnerability identifier: #VU9374

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-2017-16719

CWE-ID: CWE-74

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
NPort 5110
Hardware solutions / Firmware
NPort 5130
Hardware solutions / Firmware
NPort 5150
Hardware solutions / Firmware

Vendor: Moxa

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to improper neutralization of special elements in output used by a downstream component. A remote attacker can inject specially crafted packets that and disrupt the availability of the device.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Install update from vendor's website.

Vulnerable software versions

NPort 5110: 3.7

NPort 5130: 3.7

NPort 5150: 2.2 - 2.7

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External links
https://ics-cert.us-cert.gov/advisories/ICSA-17-320-01

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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.