CVE-2021-20594

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-20594
Exposure of Sensitive Information to an Unauthorized Actor 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 acquire legitimate user names registered in the module via brute-force attack on user names.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

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/2021-008_en.pdf Vendor Advisory
Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

Configuration 3 (hide)

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

Configuration 4 (hide)

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

Configuration 5 (hide)

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

Configuration 6 (hide)

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

Configuration 7 (hide)

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

Configuration 8 (hide)

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

No history.

Information

Published : 2021-08-06 17:15

Updated : 2024-05-24 08:15

NVD link : CVE-2021-20594

Mitre link : CVE-2021-20594

CVE.ORG link : CVE-2021-20594

JSON object : View

Products Affected

mitsubishielectric

  • r32sfcpu
  • r32psfcpu_firmware
  • r08psfcpu
  • r120sfcpu
  • r32sfcpu_firmware
  • r120psfcpu
  • r120psfcpu_firmware
  • r16sfcpu
  • r16sfcpu_firmware
  • r08sfcpu_firmware
  • r16psfcpu
  • r32psfcpu
  • r120sfcpu_firmware
  • r16psfcpu_firmware
  • r08psfcpu_firmware
  • r08sfcpu
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor