CVE-2021-20597

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-20597
Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password.

9.1 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

6.4 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:N

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://jvn.jp/vu/JVNVU98578731/index.html Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf Vendor Advisory
https://jvn.jp/vu/JVNVU98578731/index.html Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08sfcpu:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16sfcpu:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r32sfcpu:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r120sfcpu:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:mitsubishielectric:r08psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08psfcpu:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:mitsubishielectric:r16psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16psfcpu:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:mitsubishielectric:r32psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r32psfcpu:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:mitsubishielectric:r120psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r120psfcpu:-:*:*:*:*:*:*:*
History

21 Nov 2024, 05:46

Type Values Removed Values Added
References () https://jvn.jp/vu/JVNVU98578731/index.html - Third Party Advisory () https://jvn.jp/vu/JVNVU98578731/index.html - Third Party Advisory
References () https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01 - () https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01 -
References () https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf - Vendor Advisory () https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf - Vendor Advisory

24 May 2024, 08:15

Type Values Removed Values Added
Summary (en) Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU all versions allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password. (en) Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password.

14 Oct 2022, 18:15

Type Values Removed Values Added
References
  • (MISC) https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01 -
Summary Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R08/16/32/120SFCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password. Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU all versions allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password.

27 Aug 2021, 13:10

Type Values Removed Values Added
CPE cpe:2.3:h:mitsubishielectric:r120_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r08_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r32_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r120_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r32_psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r16_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r32_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r120_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r08_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r16_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r32_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r120_psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16_psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08_psfcpu:-:*:*:*:*:*:*:*		 cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r16psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r120psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r08psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r120sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r32psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r120psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r32psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r32sfcpu:-:*:*:*:*:*:*:*

16 Aug 2021, 20:04

Type Values Removed Values Added
CPE cpe:2.3:h:mitsubishielectric:r32_psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r16_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r16_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r32_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16_psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r120_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r08_psfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r08_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r32_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r120_sfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r32_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r120_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r16_sfcpu:-:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:r08_psfcpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:mitsubishielectric:r120_psfcpu:-:*:*:*:*:*:*:*
References (MISC) https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf - (MISC) https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf - Vendor Advisory
References (MISC) https://jvn.jp/vu/JVNVU98578731/index.html - (MISC) https://jvn.jp/vu/JVNVU98578731/index.html - Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 6.4
v3 : 9.1
CWE CWE-522

06 Aug 2021, 17:27

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-06 17:15

Updated : 2024-11-21 05:46

NVD link : CVE-2021-20597

Mitre link : CVE-2021-20597

CVE.ORG link : CVE-2021-20597

JSON object : View

Products Affected

mitsubishielectric

  • r16psfcpu_firmware
  • r08sfcpu
  • r32psfcpu
  • r32psfcpu_firmware
  • r120psfcpu
  • r120sfcpu_firmware
  • r08psfcpu_firmware
  • r16psfcpu
  • r16sfcpu_firmware
  • r120psfcpu_firmware
  • r32sfcpu
  • r120sfcpu
  • r32sfcpu_firmware
  • r16sfcpu
  • r08psfcpu
  • r08sfcpu_firmware
CWE
CWE-522

Insufficiently Protected Credentials