#VU23012 Path traversal in Relion 670 series - CVE-2019-18253

Vulnerability identifier: #VU23012

Vulnerability risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-18253

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Relion 670 series
Server applications / SCADA systems

Vendor: ABB

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
https://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.

Is there known malware, which exploits this vulnerability?

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