Denial of service in Hitachi ABB Power Grids Multiple Products



Published: 2021-04-07
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-27196
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Relion 670 series
Server applications / SCADA systems

Relion 650 series
Server applications / SCADA systems

Relion SAM600-IO
Server applications / SCADA systems

RTU500 CMU
Hardware solutions / Firmware

REB500
Hardware solutions / Firmware

FOX615 TEGO1
Hardware solutions / Firmware

GMS600
Hardware solutions / Firmware

PWC600
Hardware solutions / Firmware

Modular Switchgear Monitoring (MSM)
Hardware solutions / Firmware

Vendor ABB

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU51954

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-27196

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Relion 670 series: 1.1 - 2.2.3

Relion 650 series: 1.1 - 2.2.1

Relion SAM600-IO: 2.2.1

RTU500 CMU: 7.0 - 12.0

REB500: 7.3 - 8.3

FOX615 TEGO1: R1D02

GMS600: 1.3.0

PWC600: 1.0 - 1.1

Modular Switchgear Monitoring (MSM): before 2.1.0

External links

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


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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