{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-0811", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2023-02-13T15:41:55.590Z", "datePublished": "2023-03-16T17:41:25.525Z", "dateUpdated": "2025-01-16T21:42:32.824Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "CJ2H-CPU6 \u25a1 -EIP", "product": "CJ1M SYSMAC CJ-series", "vendor": "Omron ", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CJ2H-CPU6 \u25a1", "product": "CJ1M SYSMAC CJ-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CJ2M-CPU \u25a1 \u25a1", "product": "CJ1M SYSMAC CJ-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CJ1G-CPU \u25a1 \u25a1 P", "product": "CJ1M SYSMAC CJ-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CS1H-CPU \u25a1 \u25a1 H", "product": "CJ1M SYSMAC CS-series ", "vendor": "Omron ", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CS1G-CPU \u25a1 \u25a1 H", "product": "CJ1M SYSMAC CS-series ", "vendor": "Omron ", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CS1D-CPU \u25a1 \u25a1 HA", "product": "CJ1M SYSMAC CS-series ", "vendor": "Omron ", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CS1D-CPU \u25a1 \u25a1 H", "product": "CJ1M SYSMAC CS-series ", "vendor": "Omron ", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CS1D-CPU \u25a1 \u25a1 SA", "product": "CJ1M SYSMAC CS-series ", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CS1D-CPU \u25a1 \u25a1 S", "product": "CJ1M SYSMAC CS-series ", "vendor": "Omron ", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CS1D-CPU \u25a1 \u25a1 P", "product": "CJ1M SYSMAC CS-series ", "vendor": "Omron ", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP2E-E \u25a1 \u25a1 D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP2E-S \u25a1 \u25a1 D \u25a1- \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP2E-N \u25a1 \u25a1 D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1H-X40D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1H-XA40D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1H-Y20DT-D", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1L-EL20D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1L-EM \u25a1 \u25a1 D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1L-L \u25a1 \u25a1 D \u25a1- \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1L-M \u25a1 \u25a1 D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1E-E \u25a1 \u25a1 D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}, {"defaultStatus": "unaffected", "packageName": "CP1E-NA \u25a1 \u25a1 D \u25a1 - \u25a1", "product": "CJ1M SYSMAC CP-series", "vendor": "Omron", "versions": [{"status": "affected", "version": "All versions "}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Sam Hanson of Dragos reported these vulnerabilities to CISA. "}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n\n<span style=\"background-color: rgb(255, 255, 255);\">Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program. </span>\n\n"}], "value": "\nOmron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program. \n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-284", "description": "CWE-284 Improper Access Control ", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2023-03-16T17:45:14.919Z"}, "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-01"}, {"url": "https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf"}], "source": {"discovery": "UNKNOWN"}, "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n\n<p>OMRON has released the following countermeasures for users to implement: </p><ul><li>Enable the hardware switch to prohibit writing UM (DIP switch on front panel of the CPU Unit) </li><li>Set UM read protection password and \u201cProhibit from overwriting to a protected program \u201coption. </li></ul><p>If the countermeasures cannot be applied, OMRON recommends that customers take the following mitigation measures: </p><p>Security measures to prevent unauthorized access: </p><ul><li>If the following products and versions are used, the risk of attacks by an attacker via the network can be reduced by taking the following measures. <ul><li>Enable the FINS write protection function. </li><li>Select the Protect by IP Address </li></ul></li><li>Minimize connection of control systems and equipment to open networks, so that untrusted devices will be unable to access them. &nbsp;</li><li>Implement firewalls (by shutting down unused communications ports, limiting communications hosts, limiting access to FINS port (9600)) and isolate them from the IT network. </li><li>Use a virtual private network (VPN) for remote access to control systems and equipment. </li><li>Use strong passwords and change them frequently. </li><li>Install physical controls so that only authorized personnel can access control systems and equipment. </li><li>Scan virus to ensure safety of any USB drives or similar devices before connecting them to systems and devices. </li><li>Enforce multifactor authentication to all devices with remote access to control systems and equipment whenever possible. </li><li>Anti-virus protection <ul><li>Protect any PC with access to the control system against malware and ensure installation and maintenance of up-to-date commercial grade anti-virus software protection. </li></ul></li><li>Data input and output protection <ul><li>Validation processing such as backup and range check to cope with unintentional modification of input/output data to control systems and devices. </li></ul></li><li>Data recovery <ul><li>Periodical data backup and maintenance to prepare for data loss. </li></ul></li></ul><p>For more information, see Omron\u2019s <a target=\"_blank\" rel=\"nofollow\" href=\"https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf\">Security Advisory</a>.</p><br>\n\n<br>"}], "value": "\nOMRON has released the following countermeasures for users to implement: \n\n  *  Enable the hardware switch to prohibit writing UM (DIP switch on front panel of the CPU Unit) \n  *  Set UM read protection password and \u201cProhibit from overwriting to a protected program \u201coption. \n\n\nIf the countermeasures cannot be applied, OMRON recommends that customers take the following mitigation measures: \n\nSecurity measures to prevent unauthorized access: \n\n  *  If the following products and versions are used, the risk of attacks by an attacker via the network can be reduced by taking the following measures.   *  Enable the FINS write protection function. \n  *  Select the Protect by IP Address \n\n\n\n  *  Minimize connection of control systems and equipment to open networks, so that untrusted devices will be unable to access them. \u00a0\n  *  Implement firewalls (by shutting down unused communications ports, limiting communications hosts, limiting access to FINS port (9600)) and isolate them from the IT network. \n  *  Use a virtual private network (VPN) for remote access to control systems and equipment. \n  *  Use strong passwords and change them frequently. \n  *  Install physical controls so that only authorized personnel can access control systems and equipment. \n  *  Scan virus to ensure safety of any USB drives or similar devices before connecting them to systems and devices. \n  *  Enforce multifactor authentication to all devices with remote access to control systems and equipment whenever possible. \n  *  Anti-virus protection   *  Protect any PC with access to the control system against malware and ensure installation and maintenance of up-to-date commercial grade anti-virus software protection. \n\n\n\n  *  Data input and output protection   *  Validation processing such as backup and range check to cope with unintentional modification of input/output data to control systems and devices. \n\n\n\n  *  Data recovery   *  Periodical data backup and maintenance to prepare for data loss. \n\n\n\n\n\nFor more information, see Omron\u2019s  Security Advisory https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf .\n\n\n\n\n\n"}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T05:24:34.505Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-01", "tags": ["x_transferred"]}, {"url": "https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-01-16T20:56:16.921497Z", "id": "CVE-2023-0811", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-16T21:42:32.824Z"}}]}}