Denial of service in Mitsubishi Electric Factory Automation Products

1) Insufficient Resource Pool

EUVDB-ID: #VU86863

Risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-7033

CWE-ID: CWE-410 - Insufficient Resource Pool

Exploit availability: No

Description

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

The vulnerability exists due to insufficient resource pool in the Ethernet function. A remote attacker can cause a denial of service condition on the target system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

MELSEC iQ-F FX5U-32MT/ES: All versions

MELSEC iQ-F FX5U-32MT/DS: All versions

MELSEC iQ-F FX5U-32MT/ESS: All versions

MELSEC iQ-F FX5U-32MT/DSS: All versions

MELSEC iQ-F FX5U-32MR/ES: All versions

MELSEC iQ-F FX5U-32MR/DS: All versions

MELSEC iQ-F FX5U-64MT/ES: All versions

MELSEC iQ-F FX5U-64MT/ESS: All versions

MELSEC iQ-F FX5U-64MT/DS: All versions

MELSEC iQ-F FX5U-64MT/DSS: All versions

MELSEC iQ-F FX5U-64MR/ES: All versions

MELSEC iQ-F FX5U-64MR/DS: All versions

MELSEC iQ-F FX5U-80MT/ES: All versions

MELSEC iQ-F FX5U-80MT/DS: All versions

MELSEC iQ-F FX5U-80MT/ESS: All versions

MELSEC iQ-F FX5U-80MT/DSS: All versions

MELSEC iQ-F FX5U-80MR/ES: All versions

MELSEC iQ-F FX5U-80MR/DS: All versions

MELSEC iQ-F FX5UC-32MT/D: All versions

MELSEC iQ-F FX5UC-32MT/DSS: All versions

MELSEC iQ-F FX5UC-64MT/D: All versions

MELSEC iQ-F FX5UC-64MT/DSS: All versions

MELSEC iQ-F FX5UC-96MT/D: All versions

MELSEC iQ-F FX5UC-96MT/DSS: All versions

MELSEC iQ-F FX5UC-32MT/DS-TS: All versions

MELSEC iQ-F FX5UC-32MT/DSS-TS: All versions

MELSEC iQ-F FX5UC-32MR/DS-TS: All versions

MELSEC iQ-F FX5UJ-24MT/ES: All versions

MELSEC iQ-F FX5UJ-24MT/DS: All versions

MELSEC iQ-F FX5UJ-24MT/ESS: All versions

MELSEC iQ-F FX5UJ-24MT/DSS: All versions

MELSEC iQ-F FX5UJ-24MR/ES: All versions

MELSEC iQ-F FX5UJ-24MR/DS: All versions

MELSEC iQ-F FX5UJ-40MT/ES: All versions

MELSEC iQ-F FX5UJ-40MT/DS: All versions

MELSEC iQ-F FX5UJ-40MT/ESS: All versions

MELSEC iQ-F FX5UJ-40MT/DSS: All versions

MELSEC iQ-F FX5UJ-40MR/ES: All versions

MELSEC iQ-F FX5UJ-40MR/DS: All versions

MELSEC iQ-F FX5UJ-60MT/ES: All versions

MELSEC iQ-F FX5UJ-60MT/DS: All versions

MELSEC iQ-F FX5UJ-60MT/ESS: All versions

MELSEC iQ-F FX5UJ-60MT/DSS: All versions

MELSEC iQ-F FX5UJ-60MR/ES: All versions

MELSEC iQ-F FX5UJ-60MR/DS: All versions

MELSEC iQ-F FX5UJ-24MT/ES-A: All versions

MELSEC iQ-F FX5UJ-24MR/ES-A: All versions

MELSEC iQ-F FX5UJ-40MT/ES-A: All versions

MELSEC iQ-F FX5UJ-40MR/ES-A: All versions

MELSEC iQ-F FX5UJ-60MT/ES-A: All versions

MELSEC iQ-F FX5UJ-60MR/ES-A: All versions

MELSEC iQ-F FX5S-30MT/ES: All versions

MELSEC iQ-F FX5S-30MT/ESS: All versions

MELSEC iQ-F FX5S-30MR/ES: All versions

MELSEC iQ-F FX5S-40MT/ES: All versions

MELSEC iQ-F FX5S-40MT/ESS: All versions

MELSEC iQ-F FX5S-40MR/ES: All versions

MELSEC iQ-F FX5S-60MT/ES: All versions

MELSEC iQ-F FX5S-60MT/ESS: All versions

MELSEC iQ-F FX5S-60MR/ES: All versions

MELSEC iQ-F FX5S-80*MT/ES: All versions

MELSEC iQ-F FX5S-80*MT/ESS: All versions

MELSEC iQ-F FX5S-80*MR/ES: All versions

External links

http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-023_en.pdf
http://jvn.jp/vu/JVNVU96145466/index.html
http://www.cisa.gov/news-events/ics-advisories/icsa-24-058-01

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.