Path traversal in Mitsubishi Electric Factory Automation Products

1) Path traversal

EUVDB-ID: #VU32954

Risk: Medium

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

CVE-ID: CVE-2020-14523

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 arbitrary files on the system, leading to arbitrary code execution.

Mitigation

Install update from vendor's website.

Vulnerable software versions

CW Configurator: 1.010L

Mitsubishi Electric FR Configurator2: 1.22Y

GX Works2: 1.595V

GX Works3: 1.063R

MELSEC iQ-R series: All versions

MELSOFT iQ AppPortal: All versions

MELSOFT Navigator: All versions

MI Configurator: All versions

MR Configurator2: All versions

MT Works2: 1.156N

MX Component: All versions

RT ToolBox3: 1.70Y

External links

http://ics-cert.us-cert.gov/advisories/icsa-20-212-03

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.