CVE-2021-35533

CVSS V2 High 7.1 CVSS V3 High 7.5
Description
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).
Overview
  • CVE ID
  • CVE-2021-35533
  • Assigner
  • cybersecurity@hitachienergy.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-11-26T17:15:07
  • Last Modified Date
  • 2023-04-19T15:32:25
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:abb:rtu500_firmware:12.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:abb:rtu500_firmware:12.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:abb:rtu500_firmware:12.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:abb:rtu500:-:*:*:*:*:*:*:* 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://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-35533
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35533
History
Created Old Value New Value Data Type Notes
2022-05-10 06:44:26 Added to TrackCVE
2022-12-05 15:11:44 2021-11-26T17:15Z 2021-11-26T17:15:07 CVE Published Date updated
2022-12-05 15:11:44 2021-11-30T19:24:57 CVE Modified Date updated
2022-12-05 15:11:44 Analyzed Vulnerability Status updated
2023-04-19 16:08:28 2023-04-19T15:32:25 CVE Modified Date updated