Vulnerability identifier: #VU58240

Vulnerability risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-20601

CWE-ID: CWE-20

Exploitation vector: 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
GOT2000 GT21 model
Server applications / SCADA systems
GOT SIMPLE GS21 model
Server applications / SCADA systems
GT SoftGOT2000
Server applications / SCADA systems

Vendor: Mitsubishi Electric

Description

The vulnerability allows a remote attacker to compromise the system.

The vulnerability exists due to an information tampering issue. A remote attacker can send a specially crafted packet to rewrite the device value and adversely affect the system’s operation.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

GOT2000 GT27 model: All versions

GOT2000 GT25 model: All versions

GOT2000 GT23 model: All versions

GOT2000 GT21 model: All versions

GOT SIMPLE GS21 model: All versions

GT SoftGOT2000: All versions

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External links
http://ics-cert.us-cert.gov/advisories/icsa-21-320-02

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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.