Remote code execution in Hitachi Energy Relion 670/650/SAM600-IO

1) Code Injection

EUVDB-ID: #VU58505

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-35535

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in the early boot process of the product in which there is a tiny time gap where a previous version of VxWorks is loaded prior to booting up the complete application firmware. A remote attacker can execute arbitrary code on the target device before the operating system is loaded.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Relion 670 series: 2.2.0 - 2.2.4

Relion 650 series: 2.2.0 - 2.2.4

Relion SAM600-IO: 2.2.1

CPE2.3

• cpe:2.3:a:abb:relion_670_series:2.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:abb:relion_670_series:2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:abb:relion_670_series:2.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:abb:relion_650_series:2.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:abb:relion_650_series:2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:abb:relion_650_series:2.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:abb:relion_sam600-io:2.2.1:*:*:*:*:*:*:*

External links

http://search.abb.com/library/Download.aspx?DocumentID=8DBD000061&LanguageCode=en&DocumentPartId=&Action=Launch

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.