Input validation error in Hitachi Energy products - CVE-2021-27196

Vulnerability identifier: #VU51954

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2021-27196

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

FOX615 TEGO1
GMS600
PWC600
RTU500 CMU
REB500
Modular Switchgear Monitoring (MSM)
Relion 670 series
Relion 650 series
Relion SAM600-IO

Install updates from vendor's website.

FOX615 TEGO1 - update to R2A16
GMS600 - update to 1.3.1
PWC600 - addressed in versions 1.0.1.4, 1.1.0.1
Relion 670 series - addressed in versions 1.2.3.20, 2.2.0.13, 2.2.1.6, 2.2.2.3, 2.2.3.2
Relion 650 series - addressed in versions 1.3.0.7, 2.2.0.13, 2.2.1.6
Relion SAM600-IO - update to 2.2.1.6
RTU500 CMU - addressed in versions 12.0.14.0, 12.2.11.0, 12.4.10.0, 12.6.1.0
REB500 - addressed in versions 7.60.19, 8.2.0.5, 8.3.1.0
Modular Switchgear Monitoring (MSM) - update to 2.1.0

• https://ics-cert.us-cert.gov/advisories/icsa-21-096-01

• Denial of service in Hitachi ABB Power Grids Multiple Products