{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-3596",
        "ASSIGNER": "PSIRT@rockwellautomation.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "\nWhere this vulnerability exists in the Rockwell Automation 1756-EN4* Ethernet/IP communication products, it could allow a malicious user to cause a denial of service by asserting the target system through maliciously crafted CIP messages.\n\n"
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-787 Out-of-bounds Write",
                        "cweId": "CWE-787"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Rockwell Automation",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "1756-EN4TR Series A",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "<=5.001"
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "1756-EN4TRK Series A",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "<=5.001"
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "1756-EN4TRXT Series A\t",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "<=5.001"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010",
                "refsource": "MISC",
                "name": "https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.1.0-dev"
    },
    "source": {
        "discovery": "UNKNOWN"
    },
    "solution": [
        {
            "lang": "en",
            "supportingMedia": [
                {
                    "base64": false,
                    "type": "text/html",
                    "value": "\n\n<ul><li><strong>Update firmware. </strong>Update EN4* ControlLogix communications modules to firmware revision 5.002.&nbsp;</li><li><strong>Properly segment networks.</strong>&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. </li><li><strong>Implement detection signatures.</strong>&nbsp;Use appended Snort signatures to monitor and detect anomalous Common Industrial Protocol (CIP) packets to Rockwell Automation devices. </li></ul>\n\n<br>"
                }
            ],
            "value": "\n  *  Update firmware. Update EN4* ControlLogix communications modules to firmware revision 5.002.\u00a0\n  *  Properly segment networks.\u00a0Given 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.\u00a0Use appended Snort signatures to monitor and detect anomalous Common Industrial Protocol (CIP) packets to Rockwell Automation devices. \n\n\n\n\n\n"
        }
    ],
    "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"
            }
        ]
    }
}