Denial of service in Mitsubishi Electric MELSEC Q and L Series

1) Origin validation error

EUVDB-ID: #VU64579

Risk: Medium

CVSSv4.0: [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:Green]

CVE-ID: CVE-2022-24946

CWE-ID: CWE-346 - Origin Validation Error

Exploit availability: No

Description

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

The vulnerability exists due to improper resource locking. A remote attacker can send a specially crafted packet and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MELSEC-Q Q03UDECPU: All versions

MELSEC iQ-Q 04 UDEHCPU: All versions

MELSEC iQ-Q 06 UDEHCPU: All versions

MELSEC iQ-Q 10 UDEHCPU: All versions

MELSEC iQ-Q 13 UDEHCPU: All versions

MELSEC iQ-Q 20 UDEHCPU: All versions

MELSEC iQ-Q 26 UDEHCPU: All versions

MELSEC iQ-Q 50 UDEHCPU: All versions

MELSEC iQ-Q 100 UDEHCPU: All versions

MELSEC iQ-Q 03 UDVCPU: 24051

MELSEC iQ-Q 04 UDVCPU: 24051

MELSEC iQ-Q 06 UDVCPU: 24051

MELSEC iQ-Q 13 UDVCPU: 24051

MELSEC iQ-Q 26 UDVCPU: 24051

MELSEC iQ-Q 04 UDPVCPU: 24051

MELSEC iQ-Q 06 UDPVCPU: 24051

MELSEC iQ-Q 13 UDPVCPU: 24051

MELSEC iQ-Q 26 UDPVCPU: 24051

MELSEC L Series L26CPU-(P)BT: 24051

MELSEC L Series L26CPU(-P): 24051

MELSEC L Series L02CPU(-P): 24051

MELSEC L Series L06CPU(-P): 24051

CPE2.3

• cpe:2.3:h:mitsubishi_electric:melsec-q_q03udecpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_04_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_06_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_10_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_13_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_20_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_26_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_50_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_100_udehcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_03_udvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_04_udvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_06_udvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_13_udvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_26_udvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_04_udpvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_06_udpvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_13_udpvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_iq-q_26_udpvcpu:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_l_series_l26cpu-_p_bt:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_l_series_l26cpu_-p:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_l_series_l02cpu_-p:*:*:*:*:*:*:*:*
• cpe:2.3:h:mitsubishi_electric:melsec_l_series_l06cpu_-p:*:*:*:*:*:*:*:*

External links

http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-007_en.pdf
http://jvn.jp/vu/JVNVU90895626/index.html
http://www.cisa.gov/uscert/ics/advisories/icsa-22-172-01

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.