#VU52505 Improper Authentication in Mitsubishi Electric products - CVE-2021-20590

Vulnerability identifier: #VU52505

Vulnerability risk: Medium

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

CVE-ID: CVE-2021-20590

CWE-ID: CWE-287

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
GOT2000 GT27 model
GOT2000 GT25 model
GOT2000 GT21 model
GOT2000 GT2107-WTBD
GOT2000 GT2107-WTSD
GOT SIMPLE GS21 model
GOT SIMPLE GS2110-WTBD-N
GOT SIMPLE GS2107-WTBD-N

Software vendor:
Mitsubishi Electric

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests in the VNC function. A remote attacker can bypass authentication process and gain unauthorized access to the application.

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

• https://jvn.jp/vu/JVNVU97615777/index.html
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf