CVE-2021-20597

critical

Description

Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU all versions allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password.

References

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf

https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01

https://jvn.jp/vu/JVNVU98578731/index.html

Details

Source: Mitre, NVD

Published: 2021-08-06

Updated: 2022-10-14

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical