#VU29429 XML External Entity injection in Mitsubishi Electric products - CVE-2020-5602

Vulnerability identifier: #VU29429

Vulnerability risk: Medium

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

CVE-ID: CVE-2020-5602

CWE-ID: CWE-611

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
CPU Module Logging Configuration Tool
CW Configurator
EM Software Development Kit
GT Designer3
GX LogViewer
GX Works2
GX Works3
M_CommDTM-HART
M_CommDTM-IO-Link
MELFA-Works
MELSEC-L Flexible High-Speed I/O Control Module Configuration Tool
MELSOFT FieldDeviceConfigurator
MELSOFT iQ AppPortal
MELSOFT Navigator
MI Configurator
Motion Control Setting
MR Configurator2
MT Works2
RT ToolBox2
RT ToolBox3

Software vendor:
Mitsubishi Electric

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can send a specially crafted file on the computer running the product to the outside and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Install updates from vendor's website.

• https://jvn.jp/en/vu/JVNVU90307594/index.html
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-004_en.pdf