Vulnerability identifier: #VU29596

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-5599

CWE-ID: CWE-88

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
GOT2000 GT27 model
Server applications / SCADA systems
GOT2000 GT25 model
Server applications / SCADA systems
GOT2000 GT23 model
Server applications / SCADA systems

Vendor: Mitsubishi Electric

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exixts due to improper neutralization of argument delimiters in a command within the TCP/IP function. A remote attacker on the local network can use a specially crafted packet and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

GOT2000 GT27 model: All versions

GOT2000 GT25 model: All versions

GOT2000 GT23 model: All versions

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External links
http://jvn.jp/en/vu/JVNVU95413676/index.html
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-005_en.pdf

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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. However, proof of concept for this vulnerability is available.