#VU22633 Heap-based buffer overflow in V-Server - CVE-2019-18240

Vulnerability identifier: #VU22633

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-18240

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
V-Server
Server applications / Web servers

Vendor: Fuji Electric

Description

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

The vulnerability exists due to a boundary error within the affected application. A remote attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

V-Server: 4.0.6

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External links
https://ics-cert.us-cert.gov/advisories/icsa-19-311-02

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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.