{"id":"CVE-2021-35533","state":"PUBLISHED","title":"Specially Crafted IEC 60870-5-104 Packet Vulnerability in RTU500 series","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).","publishedAt":"2021-11-26T16:37:27.683Z","updatedAt":"2024-09-16T21:02:16.277Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"Hitachi Energy"},"assigner":"Hitachi Energy","products":["Hitachi Energy RTU500 series"],"affected":[{"vendor":"Hitachi Energy","product":"RTU500 series","versions":[{"version":"CMU Firmware version 12.0","status":"affected","lessThanOrEqual":"12.0.*","versionType":"custom"},{"version":"CMU Firmware version 12.2","status":"affected","lessThanOrEqual":"12.2.*","versionType":"custom"},{"version":"CMU Firmware version 12.4","status":"affected","lessThanOrEqual":"12.4.*","versionType":"custom"}]}],"references":["https://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:48:41.709Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/35xxx/CVE-2021-35533.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-35533","state":"PUBLISHED","datePublished":"2021-11-26T16:37:27.683Z","dateUpdated":"2024-09-16T21:02:16.277Z","assignerShortName":"Hitachi Energy","assignerOrgId":"e383dce4-0c27-4495-91c4-0db157728d17","dateReserved":"2021-06-28T00:00:00.000Z"},"containers":{"cna":{"title":"Specially Crafted IEC 60870-5-104 Packet Vulnerability in RTU500 series","descriptions":[{"lang":"en","value":"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":[{"vendor":"Hitachi Energy","product":"RTU500 series","versions":[{"version":"CMU Firmware version 12.0","status":"affected","lessThanOrEqual":"12.0.*","versionType":"custom"},{"version":"CMU Firmware version 12.2","status":"affected","lessThanOrEqual":"12.2.*","versionType":"custom"},{"version":"CMU Firmware version 12.4","status":"affected","lessThanOrEqual":"12.4.*","versionType":"custom"}]}],"references":[{"url":"https://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Hitachi Energy","dateUpdated":"2021-11-26T16:37:27.000Z","orgId":"e383dce4-0c27-4495-91c4-0db157728d17"},"datePublic":"2021-11-17T00:00:00.000Z","solutions":[{"lang":"en","value":"- Disable BCI IEC 60870-5-104 function by configuration if it is not used.\n- Update to RTU500 series CMU Firmware version 12.6.5.0 or later (e.g., RTU500 CMU Firmware version 12.7.* or CMU Firmware version 13.2.* or later)."}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cybersecurity@hitachienergy.com","DATE_PUBLIC":"2021-11-17T14:00:00.000Z","ID":"CVE-2021-35533","STATE":"PUBLIC","TITLE":"Specially Crafted IEC 60870-5-104 Packet Vulnerability in RTU500 series"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"RTU500 series","version":{"version_data":[{"version_affected":"<=","version_name":"CMU Firmware version 12.0","version_value":"12.0.*"},{"version_affected":"<=","version_name":"CMU Firmware version 12.2","version_value":"12.2.*"},{"version_affected":"<=","version_name":"CMU Firmware version 12.4","version_value":"12.4.*"}]}}]},"vendor_name":"Hitachi Energy"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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)."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20 Improper Input Validation"}]}]},"references":{"reference_data":[{"name":"https://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch","refsource":"CONFIRM","url":"https://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch"}]},"solution":[{"lang":"en","value":"- Disable BCI IEC 60870-5-104 function by configuration if it is not used.\n- Update to RTU500 series CMU Firmware version 12.6.5.0 or later (e.g., RTU500 CMU Firmware version 12.7.* or CMU Firmware version 13.2.* or later)."}],"source":{"discovery":"INTERNAL"},"work_around":[{"lang":"en"}]}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://search.abb.com/library/Download.aspx?DocumentID=8DBD000063&LanguageCode=en&DocumentPartId=&Action=Launch","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T00:40:47.218Z"}}]}}}