Path traversal in ABB Relion 670 Series

1) Path traversal

EUVDB-ID: #VU23012

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-18253

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and read or delete files from the device outside the intended directory.

This vulnerability affects the following versions of Relion 670 series:

• 1p1r26 and prior
• 1.2.3.17 and prior
• 2.0.0.10 and prior (RES670 2.0.0.4 and prior)
• 2.1.0.1 and prior

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Relion 670 series: 1.2.3.17 - 2.1.0.1

External links

http://ics-cert.us-cert.gov/advisories/icsa-19-330-01

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.