CVE-2020-5666

CVSS V2 High 7.1 CVSS V3 High 7.5
Description
Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication.
Overview
  • CVE ID
  • CVE-2020-5666
  • Assigner
  • vultures@jpcert.or.jp
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-11-16T01:15:13
  • Last Modified Date
  • 2020-12-03T16:14:34
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r00_firmware:*:*:*:*:*:*:*:* 1 OR 05 19
cpe:2.3:h:mitsubishielectric:melsec_iq-r00:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r01_firmware:*:*:*:*:*:*:*:* 1 OR 05 19
cpe:2.3:h:mitsubishielectric:melsec_iq-r01:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r02_firmware:*:*:*:*:*:*:*:* 1 OR 05 19
cpe:2.3:h:mitsubishielectric:melsec_iq-r02:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r04_firmware:*:*:*:*:*:*:*:* 1 OR 35 51
cpe:2.3:h:mitsubishielectric:melsec_iq-r04:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r16_firmware:*:*:*:*:*:*:*:* 1 OR 35 51
cpe:2.3:h:mitsubishielectric:melsec_iq-r16:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r08_firmware:*:*:*:*:*:*:*:* 1 OR 35 51
cpe:2.3:h:mitsubishielectric:melsec_iq-r08:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r32_firmware:*:*:*:*:*:*:*:* 1 OR 35 51
cpe:2.3:h:mitsubishielectric:melsec_iq-r32:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:melsec_iq-r120_firmware:*:*:*:*:*:*:*:* 1 OR 35 51
cpe:2.3:h:mitsubishielectric:melsec_iq-r120:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.1
  • Severity
  • HIGH
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://jvn.jp/jp/JVN44764844/index.html Third Party Advisory
https://jvn.jp/en/jp/JVN44764844/index.html Third Party Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf Mitigation Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01 Third Party Advisory US Government Resource
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-5666
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5666
History
Created Old Value New Value Data Type Notes
2022-05-10 07:31:29 Added to TrackCVE
2022-12-05 16:50:33 2020-11-16T01:15Z 2020-11-16T01:15:13 CVE Published Date updated
2022-12-05 16:50:33 2020-12-03T16:14:34 CVE Modified Date updated
2022-12-05 16:50:33 Analyzed Vulnerability Status updated