{"id":"CVE-2023-3595","state":"PUBLISHED","title":"Rockwell Automation ControlLogix Communication Modules Vulnerable to Remote Code Execution","description":"\nWhere this vulnerability exists in the Rockwell Automation 1756 EN2* and 1756 EN3* ControlLogix communication products, it could allow a malicious user to perform remote code execution with persistence on the target system through maliciously crafted CIP messages. This includes the ability to modify, deny, and exfiltrate data passing through the device.\n\n","publishedAt":"2023-07-12T12:37:01.939Z","updatedAt":"2024-08-02T07:01:57.031Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"Rockwell"},"assigner":"Rockwell","products":["Rockwell Automation 1756-EN2T Series A, B, C","Rockwell Automation 1756-EN2T Series D","Rockwell Automation 1756-EN2TK Series A, B, C","Rockwell Automation 1756-EN2TXT Series A, B, C","Rockwell Automation 1756-EN2TXT Series D","Rockwell Automation 1756-EN2TP Series A","Rockwell Automation 1756-EN2TPK Series A","Rockwell Auotmation 1756-EN2TPXT Series A","Rockwell Automation 1756-EN2TR Series A, B","Rockwell Automation 1756-EN2TR Series C","Rockwell Automation 1756-EN2TRK Series A, B","Rockwell Automation 1756-EN2TRK Series C","Rockwell Automation 1756-EN2TRXT Series A, B","Rockwell Automation 1756-EN2TRXT Series C","Rockwell Automation 1756-EN2F Series A, B","Rockwell Automation 1756-EN2F Series C","Rockwell Automation 1756-EN2FK Series A, B","Rockwell Automation 1756-EN2FK Series C","Rockwell Automation 1756-EN3TR Series A","Rockwell Automation 1756-EN3TR Series B","Rockwell Automation 1756-EN3TRK Series A","Rockwell Automation 1756-EN3TRK Series B"],"affected":[{"vendor":"Rockwell Automation","product":"1756-EN2T Series A, B, C","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2T Series D","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TK Series A, B, C","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TXT Series A, B, C","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TXT Series D","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TP Series A","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TPK Series A","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Auotmation","product":"1756-EN2TPXT Series A","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TR Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TR Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRK Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRK Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRXT Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRXT Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2F Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2F Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2FK Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2FK Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TR Series A","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TR Series B","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TRK Series A","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TRK Series B","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]}],"references":["https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/3xxx/CVE-2023-3595.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-3595","state":"PUBLISHED","datePublished":"2023-07-12T12:37:01.939Z","dateUpdated":"2024-08-02T07:01:57.031Z","assignerShortName":"Rockwell","assignerOrgId":"b73dd486-f505-4403-b634-40b078b177f0","dateReserved":"2023-07-10T15:34:52.031Z"},"containers":{"cna":{"title":"Rockwell Automation ControlLogix Communication Modules Vulnerable to Remote Code Execution","descriptions":[{"lang":"en","value":"\nWhere this vulnerability exists in the Rockwell Automation 1756 EN2* and 1756 EN3* ControlLogix communication products, it could allow a malicious user to perform remote code execution with persistence on the target system through maliciously crafted CIP messages. This includes the ability to modify, deny, and exfiltrate data passing through the device.\n\n"}],"affected":[{"vendor":"Rockwell Automation","product":"1756-EN2T Series A, B, C","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2T Series D","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TK Series A, B, C","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TXT Series A, B, C","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TXT Series D","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TP Series A","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TPK Series A","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Auotmation","product":"1756-EN2TPXT Series A","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TR Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TR Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRK Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRK Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRXT Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2TRXT Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2F Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2F Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2FK Series A, B","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN2FK Series C","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TR Series A","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TR Series B","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TRK Series A","defaultStatus":"unaffected","versions":[{"version":"<=5.008 & 5.028","status":"affected"}]},{"vendor":"Rockwell Automation","product":"1756-EN3TRK Series B","defaultStatus":"unaffected","versions":[{"version":"<=11.003","status":"affected"}]}],"references":[{"url":"https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Rockwell","orgId":"b73dd486-f505-4403-b634-40b078b177f0","dateUpdated":"2023-07-12T13:15:20.247Z"},"datePublic":"2023-07-12T12:00:00.000Z","impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"\n\n<ul><li><strong>Update firmware.</strong>&nbsp;Update EN2* ControlLogix communications modules to mitigated firmware.</li><li><strong>Properly segment networks.</strong><span style=\"background-color: var(--wht);\">&nbsp;Given a cyber actor would require network connectivity to the communication module to exploit the vulnerability, organizations should ensure ICS/SCADA networks are properly segmented within the process structure as well as from the Internet and other non-essential networks.</span></li><li><strong>Implement detection signatures.</strong><span style=\"background-color: var(--wht);\">&nbsp;Use appended Snort signatures to monitor and detect anomalous Common Industrial Protocol (CIP) packets to Rockwell Automation devices.</span></li></ul>\n\n"}],"value":"\n  *  Update firmware. Update EN2* ControlLogix communications modules to mitigated firmware.\n  *  Properly segment networks. Given a cyber actor would require network connectivity to the communication module to exploit the vulnerability, organizations should ensure ICS/SCADA networks are properly segmented within the process structure as well as from the Internet and other non-essential networks.\n  *  Implement detection signatures. Use appended Snort signatures to monitor and detect anomalous Common Industrial Protocol (CIP) packets to Rockwell Automation devices.\n\n\n\n\n"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T07:01:57.031Z"}}]}}}