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cve[email protected]CVE-2021-35533
HistoryNov 26, 2021 - 5:15 p.m.

CVE-2021-35533

2021-11-2617:15:07
CWE-20
web.nvd.nist.gov
28
cve-2021-35533
hitachi energy
rtu500
input validation
bci
iec 60870-5-104
security vulnerability
firmware

7.1 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

38.5%

Improper Input Validation vulnerability in the APDU parser in the Bidirectional Communication Interface (BCI) IEC 60870-5-104 function of Hitachi Energy RTU500 series allows an attacker to cause the receiving RTU500 CMU of which the BCI is enabled to reboot when receiving a specially crafted message. By default, BCI IEC 60870-5-104 function is disabled (not configured). This issue affects: Hitachi Energy RTU500 series CMU Firmware version 12.0.* (all versions); CMU Firmware version 12.2.* (all versions); CMU Firmware version 12.4.* (all versions).

Affected configurations

NVD
Node
hitachienergyrtu500Match-
AND
hitachienergyrtu500_firmwareMatch12.0
OR
hitachienergyrtu500_firmwareMatch12.2
OR
hitachienergyrtu500_firmwareMatch12.4

CNA Affected

[
  {
    "product": "RTU500 series",
    "vendor": "Hitachi Energy",
    "versions": [
      {
        "lessThanOrEqual": "12.0.*",
        "status": "affected",
        "version": "CMU Firmware version 12.0",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "12.2.*",
        "status": "affected",
        "version": "CMU Firmware version 12.2",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "12.4.*",
        "status": "affected",
        "version": "CMU Firmware version 12.4",
        "versionType": "custom"
      }
    ]
  }
]

7.1 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

38.5%

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