#VU57080 Input validation error in Mitsubishi Electric products - CVE-2021-20603

Vulnerability identifier: #VU57080

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2021-20603

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
GOT2000 GT2107-WTBD
GOT2000 GT2107-WTSD
GOT2000 GT2104-RTBD
GOT2000 GT2104-PMBD
GOT2000 GT2103-PMBD
GOT SIMPLE GS2110-WTBD
GOT SIMPLE GS2107-WTBD
GOT SIMPLE GS2110-WTBD-N
GOT SIMPLE GS2107-WTBD-N
LE7-40GU-L

Software vendor:
Mitsubishi Electric

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.

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

• https://ics-cert.us-cert.gov/advisories/icsa-21-278-01
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-014_en.pdf