Vulnerability identifier: #VU57080

Vulnerability risk: Medium

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

CVE-ID: CVE-2021-20603

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GOT2000 GT2107-WTBD
Server applications / SCADA systems
GOT2000 GT2107-WTSD
Server applications / SCADA systems
GOT2000 GT2104-RTBD
Server applications / SCADA systems
GOT2000 GT2104-PMBD
Server applications / SCADA systems
GOT2000 GT2103-PMBD
Server applications / SCADA systems
GOT SIMPLE GS2110-WTBD
Server applications / SCADA systems
GOT SIMPLE GS2107-WTBD
Server applications / SCADA systems
GOT SIMPLE GS2110-WTBD-N
Server applications / SCADA systems
GOT SIMPLE GS2107-WTBD-N
Server applications / SCADA systems
LE7-40GU-L
Hardware solutions / Firmware

Vendor: Mitsubishi Electric

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in the TCP-IP protocol stack of GOT and Tension Controller. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

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

Vulnerable software versions

GOT2000 GT2107-WTBD: All versions

GOT2000 GT2107-WTSD: All versions

GOT2000 GT2104-RTBD: All versions

GOT2000 GT2104-PMBD: All versions

GOT2000 GT2103-PMBD: All versions

GOT SIMPLE GS2110-WTBD: All versions

GOT SIMPLE GS2107-WTBD: All versions

GOT SIMPLE GS2110-WTBD-N: All versions

GOT SIMPLE GS2107-WTBD-N: All versions

LE7-40GU-L: All versions

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External links
http://ics-cert.us-cert.gov/advisories/icsa-21-278-01
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-014_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 Internet.

Is there known malware, which exploits this vulnerability?

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