Denial of service in Mitsubishi Electric MELSEC iQ-R, Q and L Series
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-5652 |
| CWE-ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
MELSEC iQ-R 00 CPU Hardware solutions / Firmware MELSEC iQ-R 01 CPU Hardware solutions / Firmware MELSEC iQ-R 02 CPU Hardware solutions / Firmware MELSEC iQ-R 04 (EN) CPU Hardware solutions / Firmware MELSEC iQ-R 08 (EN) CPU Hardware solutions / Firmware MELSEC iQ-R 16 (EN) CPU Hardware solutions / Firmware MELSEC iQ-R 32 (EN) CPU Hardware solutions / Firmware MELSEC iQ-R 120 (EN) CPU Hardware solutions / Firmware MELSEC iQ-R 08 SFCPU Hardware solutions / Firmware MELSEC iQ-R 16 SFCPU Hardware solutions / Firmware MELSEC iQ-R 32 SFCPU Hardware solutions / Firmware MELSEC iQ-R 120 SFCPU Hardware solutions / Firmware MELSEC iQ-R 08 PCPU Hardware solutions / Firmware MELSEC iQ-R 16 PCPU Hardware solutions / Firmware MELSEC iQ-R 32 PCPU Hardware solutions / Firmware MELSEC iQ-R 120 PCPU Hardware solutions / Firmware MELSEC iQ-R 08 PSFCPU Hardware solutions / Firmware MELSEC iQ-R 16 PSFCPU Hardware solutions / Firmware MELSEC iQ-R 32 PSFCPU Hardware solutions / Firmware MELSEC iQ-R 120 PSFCPU Hardware solutions / Firmware MELSEC iQ-R 16 MTCPU Hardware solutions / Firmware MELSEC iQ-R 32 MTCPU Hardware solutions / Firmware MELSEC iQ-R 64 MTCPU Hardware solutions / Firmware MELSEC iQ-Q 03 UDECPU Hardware solutions / Firmware MELSEC iQ-Q 04 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 06 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 10 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 13 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 20 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 26 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 50 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 100 UDEHCPU Hardware solutions / Firmware MELSEC iQ-Q 03 UDVCPU Hardware solutions / Firmware MELSEC iQ-Q 04 UDVCPU Hardware solutions / Firmware MELSEC iQ-Q 06 UDVCPU Hardware solutions / Firmware MELSEC iQ-Q 13 UDVCPU Hardware solutions / Firmware MELSEC iQ-Q 26 UDVCPU Hardware solutions / Firmware MELSEC iQ-Q 04 UDPVCPU Hardware solutions / Firmware MELSEC iQ-Q 06 UDPVCPU Hardware solutions / Firmware MELSEC iQ-Q 13 UDPVCPU Hardware solutions / Firmware MELSEC iQ-Q 26 UDPVCPU Hardware solutions / Firmware MELSEC iQ-Q 172 DCPU-S1 Hardware solutions / Firmware MELSEC iQ-Q 173 DCPU-S1 Hardware solutions / Firmware MELSEC iQ-Q 172 DSCPU Hardware solutions / Firmware MELSEC iQ-Q 173 DSCPU Hardware solutions / Firmware MELSEC iQ-Q 170 MCPU Hardware solutions / Firmware MELSEC iQ-Q 170 MSCPU(-S1) Hardware solutions / Firmware MELSEC iQ-Q MR-MQ100 Hardware solutions / Firmware MELSEC-L L02CPU-P Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC-L L06CPU-P Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC-L L26CPU-P Hardware solutions / Routers & switches, VoIP, GSM, etc MELSEC-L L26CPU-PBT Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Mitsubishi Electric |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Resource exhaustion
EUVDB-ID: #VU48069
Risk: Medium
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:Green]
CVE-ID: CVE-2020-5652
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can send a specially crafted packet, trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMELSEC iQ-R 00 CPU: - - 20
MELSEC iQ-R 01 CPU: - - 20
MELSEC iQ-R 02 CPU: - - 20
MELSEC iQ-R 04 (EN) CPU: - - 52
MELSEC iQ-R 08 (EN) CPU: - - 52
MELSEC iQ-R 16 (EN) CPU: - - 52
MELSEC iQ-R 32 (EN) CPU: - - 52
MELSEC iQ-R 120 (EN) CPU: - - 52
MELSEC iQ-R 08 SFCPU: - - 22
MELSEC iQ-R 16 SFCPU: - - 22
MELSEC iQ-R 32 SFCPU: - - 22
MELSEC iQ-R 120 SFCPU: - - 22
MELSEC iQ-R 08 PCPU: All versions
MELSEC iQ-R 16 PCPU: All versions
MELSEC iQ-R 32 PCPU: All versions
MELSEC iQ-R 120 PCPU: All versions
MELSEC iQ-R 08 PSFCPU: All versions
MELSEC iQ-R 16 PSFCPU: All versions
MELSEC iQ-R 32 PSFCPU: All versions
MELSEC iQ-R 120 PSFCPU: All versions
MELSEC iQ-R 16 MTCPU: All versions
MELSEC iQ-R 32 MTCPU: All versions
MELSEC iQ-R 64 MTCPU: All versions
MELSEC iQ-Q 03 UDECPU: - - 22081
MELSEC iQ-Q 04 UDEHCPU: - - 22081
MELSEC iQ-Q 06 UDEHCPU: - - 22081
MELSEC iQ-Q 10 UDEHCPU: - - 22081
MELSEC iQ-Q 13 UDEHCPU: - - 22081
MELSEC iQ-Q 20 UDEHCPU: - - 22081
MELSEC iQ-Q 26 UDEHCPU: - - 22081
MELSEC iQ-Q 50 UDEHCPU: - - 22081
MELSEC iQ-Q 100 UDEHCPU: - - 22081
MELSEC iQ-Q 03 UDVCPU: - - 22031
MELSEC iQ-Q 04 UDVCPU: - - 22031
MELSEC iQ-Q 06 UDVCPU: - - 22031
MELSEC iQ-Q 13 UDVCPU: - - 22031
MELSEC iQ-Q 26 UDVCPU: - - 22031
MELSEC iQ-Q 04 UDPVCPU: - - 22031
MELSEC iQ-Q 06 UDPVCPU: - - 22031
MELSEC iQ-Q 13 UDPVCPU: - - 22031
MELSEC iQ-Q 26 UDPVCPU: - - 22031
MELSEC iQ-Q 172 DCPU-S1: All versions
MELSEC iQ-Q 173 DCPU-S1: All versions
MELSEC iQ-Q 172 DSCPU: All versions
MELSEC iQ-Q 173 DSCPU: All versions
MELSEC iQ-Q 170 MCPU: All versions
MELSEC iQ-Q 170 MSCPU(-S1): All versions
MELSEC iQ-Q MR-MQ100: All versions
MELSEC-L L02CPU-P: All versions
MELSEC-L L06CPU-P: All versions
MELSEC-L L26CPU-P: All versions
MELSEC-L L26CPU-PBT: All versions
CPE2.3- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_00_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_00_cpu:20:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_01_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_01_cpu:20:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_02_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_02_cpu:20:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_04_en_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_04_en_cpu:52:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_08_en_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_08_en_cpu:52:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_16_en_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_32_en_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_120_en_cpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_08_sfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_16_sfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_32_sfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_120_sfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_08_pcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_16_pcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_32_pcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_120_pcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_08_psfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_16_psfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_32_psfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_120_psfcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_16_mtcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_32_mtcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_64_mtcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-q_03_udecpu:*:*:*:*:*:*:*:*
- 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_iq-q_172_dcpu-s1:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-q_173_dcpu-s1:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-q_172_dscpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-q_173_dscpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-q_170_mcpu:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-q_170_mscpu_-s1:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec_iq-q_mr-mq100:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec-l_l02cpu-p:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec-l_l06cpu-p:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec-l_l26cpu-p:*:*:*:*:*:*:*:*
- cpe:2.3:h:mitsubishi_electric:melsec-l_l26cpu-pbt:*:*:*:*:*:*:*:*
https://ics-cert.us-cert.gov/advisories/icsa-20-303-01
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-013_en.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
