CVE-2020-5668

CVSS V2 High 7.8 CVSS V3 High 7.5
Description
Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series modules (R00/01/02CPU firmware version '19' and earlier, R04/08/16/32/120 (EN) CPU firmware version '51' and earlier, R08/16/32/120SFCPU firmware version '22' and earlier, R08/16/32/120PCPU firmware version '25' and earlier, R08/16/32/120PSFCPU firmware version '06' and earlier, RJ71EN71 firmware version '47' and earlier, RJ71GF11-T2 firmware version '47' and earlier, RJ72GF15-T2 firmware version '07' and earlier, RJ71GP21-SX firmware version '47' and earlier, RJ71GP21S-SX firmware version '47' and earlier, and RJ71GN11-T2 firmware version '11' and earlier) allows a remote unauthenticated attacker to cause an error in a CPU unit and cause a denial-of-service (DoS) condition in execution of the program and its communication, or to cause a denial-of-service (DoS) condition in communication via the unit by receiving a specially crafted SLMP packet
Overview
  • CVE ID
  • CVE-2020-5668
  • Assigner
  • vultures@jpcert.or.jp
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-11-20T04:15:11
  • Last Modified Date
  • 2022-04-29T13:21:06
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:r00cpu_firmware:*:*:*:*:*:*:*:* 1 OR 19
cpe:2.3:h:mitsubishielectric:r00cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r01cpu_firmware:*:*:*:*:*:*:*:* 1 OR 19
cpe:2.3:h:mitsubishielectric:r01cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r02cpu_firmware:*:*:*:*:*:*:*:* 1 OR 19
cpe:2.3:h:mitsubishielectric:r02cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r04cpu_firmware:*:*:*:*:*:*:*:* 1 OR 51
cpe:2.3:h:mitsubishielectric:r04cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r08cpu_firmware:*:*:*:*:*:*:*:* 1 OR 51
cpe:2.3:h:mitsubishielectric:r08cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16cpu_firmware:*:*:*:*:*:*:*:* 1 OR 51
cpe:2.3:h:mitsubishielectric:r16cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32cpu_firmware:*:*:*:*:*:*:*:* 1 OR 51
cpe:2.3:h:mitsubishielectric:r32cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r120cpu_firmware:*:*:*:*:*:*:*:* 1 OR 51
cpe:2.3:h:mitsubishielectric:r120cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r08sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r16sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r32sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r120sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r08pcpu_firmware:*:*:*:*:*:*:*:* 1 OR 25
cpe:2.3:h:mitsubishielectric:r08pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16pcpu_firmware:*:*:*:*:*:*:*:* 1 OR 25
cpe:2.3:h:mitsubishielectric:r16pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32pcpu_firmware:*:*:*:*:*:*:*:* 1 OR 25
cpe:2.3:h:mitsubishielectric:r32pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r120pcpu_firmware:*:*:*:*:*:*:*:* 1 OR 25
cpe:2.3:h:mitsubishielectric:r120pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r08psfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 06
cpe:2.3:h:mitsubishielectric:r08psfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16psfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 06
cpe:2.3:h:mitsubishielectric:r16psfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32psfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 06
cpe:2.3:h:mitsubishielectric:r32psfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r120psfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 06
cpe:2.3:h:mitsubishielectric:r120psfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj71en71_firmware:*:*:*:*:*:*:*:* 1 OR 47
cpe:2.3:h:mitsubishielectric:rj71en71:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj71gf11-t2_firmware:*:*:*:*:*:*:*:* 1 OR 47
cpe:2.3:h:mitsubishielectric:rj71gf11-t2:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj72gf15-t2_firmware:*:*:*:*:*:*:*:* 1 OR 07
cpe:2.3:h:mitsubishielectric:rj72gf15-t2:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj71gp21-sx_firmware:*:*:*:*:*:*:*:* 1 OR 47
cpe:2.3:h:mitsubishielectric:rj71gp21-sx:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj71gp21s-sx_firmware:*:*:*:*:*:*:*:* 1 OR 47
cpe:2.3:h:mitsubishielectric:rj71gp21s-sx:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj71c24-r2_firmware:*:*:*:*:*:*:*:* 1 OR 47
cpe:2.3:h:mitsubishielectric:rj71c24-r2:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj71c24-r4_firmware:*:*:*:*:*:*:*:* 1 OR 47
cpe:2.3:h:mitsubishielectric:rj71c24-r4:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:rj71gn11-t2_firmware:*:*:*:*:*:*:*:* 1 OR 11
cpe:2.3:h:mitsubishielectric:rj71gn11-t2:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.8
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • 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://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-016.pdf Vendor Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-016_en.pdf Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-324-05 Third Party Advisory US Government Resource
https://jvn.jp/vu/JVNVU95980140/index.html Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-5668
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5668
History
Created Old Value New Value Data Type Notes
2022-05-08 06:20:36 Added to TrackCVE
2022-12-05 17:08:50 2020-11-20T04:15Z 2020-11-20T04:15:11 CVE Published Date updated
2022-12-05 17:08:50 2022-04-29T13:21:06 CVE Modified Date updated
2022-12-05 17:08:51 Analyzed Vulnerability Status updated