Multiple vulnerabilities in Mitsubishi Electric MELSEC iQ-F Series

Published: 2022-05-20 | Updated: 2022-06-02

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-25161 CVE-2022-25162
CWE-ID	CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	MELSEC iQ-F FX5U Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC iQ-F series FX5U(C) CPU module Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC iQ-F FX5UC-32MT/DS-TS Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC iQ-F FX5UC-32MT/DSS-TS Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC iQ-F FX5UC-32MR/DS-TS Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC iQ-F Series FX5UJ CPU module Hardware solutions / Routers & switches, VoIP, GSM, etc
Vendor	Mitsubishi Electric

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU63470

Risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-25161

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MELSEC iQ-F FX5U: before 1.270

MELSEC iQ-F series FX5U(C) CPU module: before 1.270

MELSEC iQ-F FX5UC-32MT/DS-TS: before 1.270

MELSEC iQ-F FX5UC-32MT/DSS-TS: before 1.270

MELSEC iQ-F FX5UC-32MR/DS-TS: before 1.270

MELSEC iQ-F Series FX5UJ CPU module: before 1.030

CPE2.3

External links

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-004_en.pdf
https://jvn.jp/vu/JVNVU95926817/index.html
https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2021-14/

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 device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Input validation error

EUVDB-ID: #VU63472

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-25162