#VU32954 Path traversal in Mitsubishi Electric products - CVE-2020-14523

Vulnerability identifier: #VU32954

Vulnerability risk: Medium

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

CVE-ID: CVE-2020-14523

CWE-ID: CWE-22

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
CW Configurator
Mitsubishi Electric FR Configurator2
GX Works2
GX Works3
MELSOFT iQ AppPortal
MELSOFT Navigator
MI Configurator
MR Configurator2
MT Works2
RT ToolBox3
MELSEC iQ-R series
MX Component

Software vendor:
Mitsubishi Electric

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.

Install update from vendor's website.

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