Vulnerability identifier: #VU17862

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-6557

CWE-ID: CWE-120

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Moxa IKS-G6824A
Server applications / SCADA systems

Vendor: Moxa

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can send a specially crafted request to the affected system, trigger buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Request updates from vendor's technical support.

Vulnerable software versions

Moxa IKS-G6824A: 4.5

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External links
http://ics-cert.us-cert.gov/advisories/ICSA-19-057-01
http://www.moxa.com/en/support/product-support/security-advisory/eds-405a-series-eds-408a-series-ed...

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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