{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2023-4299", "ASSIGNER": "ics-cert@hq.dhs.gov", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "\nDigi RealPort Protocol is vulnerable to a replay attack that may allow an attacker to bypass authentication to access connected equipment.\n\n" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-836", "cweId": "CWE-836" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Digi International ", "product": { "product_data": [ { "product_name": "Digi RealPort", "version": { "version_data": [ { "version_affected": "<=", "version_name": "0", "version_value": "4.8.488.0" } ] } }, { "product_name": "Digi ConnectPort TS 8/16", "version": { "version_data": [ { "version_affected": "<", "version_name": "0", "version_value": "2.26.2.4" } ] } }, { "product_name": "Digi Passport Console Server", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi ConnectPort LTS 8/16/32", "version": { "version_data": [ { "version_affected": "<", "version_name": "0", "version_value": "1.4.9" } ] } }, { "product_name": "Digi CM Console Server", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi PortServer TS", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi PortServer TS MEI", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi PortServer TS MEI Hardened", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi PortServer TS M MEI", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi PortServer TS P MEI", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi One IAP Family", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi One IA", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi One SP IA", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "\u200bDigi One SP", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi WR31", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi WR11 XT", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi WR44 R", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi WR21", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi Connect ES", "version": { "version_data": [ { "version_affected": "<", "version_name": "0", "version_value": "2.26.2.4" } ] } }, { "product_name": "Digi Connect SP", "version": { "version_data": [ { "version_affected": "=", "version_value": "all versions" } ] } }, { "product_name": "Digi 6350-SR", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "status": "unaffected", "version": "all versions" } ], "defaultStatus": "unaffected" } } ] } }, { "product_name": "Digi ConnectCore 8X products", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "status": "unaffected", "version": "all versions" } ], "defaultStatus": "unaffected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-243-04", "refsource": "MISC", "name": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-243-04" }, { "url": "https://www.digi.com/getattachment/resources/security/alerts/realport-cves/Dragos-Disclosure-Statement.pdf", "refsource": "MISC", "name": "https://www.digi.com/getattachment/resources/security/alerts/realport-cves/Dragos-Disclosure-Statement.pdf" } ] }, "generator": { "engine": "Vulnogram 0.1.0-dev" }, "source": { "discovery": "EXTERNAL" }, "work_around": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "\n\n

Dragos recommends restricting access to Digi devices on TCP/771 (default) or TCP/1027 (if encryption is enabled, this is the default port). Only allow the workstations which initiate RealPort connections to communicate to the field equipment on those ports. Note that most of Digi's devices allow you to change the setting for which TCP port the RealPort service runs on, so end users should consult their device configuration and restrict access to the configured port if it is not the default.

\u200bIf using the system in 'reverse' mode, where the Digi device calls back to the Windows or Linux workstation, then Dragos recommends restricting access to the workstation on TCP/771 or TCP/1027 to known Digi RealPort devices on your network. This port may be configured by end users, so consult the workstation and device configurations to ensure coverage.

\n\n
" } ], "value": "\nDragos recommends restricting access to Digi devices on TCP/771 (default) or TCP/1027 (if encryption is enabled, this is the default port). Only allow the workstations which initiate RealPort connections to communicate to the field equipment on those ports. Note that most of Digi's devices allow you to change the setting for which TCP port the RealPort service runs on, so end users should consult their device configuration and restrict access to the configured port if it is not the default.\n\n\u200bIf using the system in 'reverse' mode, where the Digi device calls back to the Windows or Linux workstation, then Dragos recommends restricting access to the workstation on TCP/771 or TCP/1027 to known Digi RealPort devices on your network. This port may be configured by end users, so consult the workstation and device configurations to ensure coverage.\n\n\n\n\n" } ], "solution": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "\n\n

Digi International recommends users acquire and install patches that they have made available for the following products:

\u200bFor more information, see the customer notification document published by Digi International.

\n\n
" } ], "value": "\nDigi International recommends users acquire and install patches that they have made available for the following products:\n\n * \u200bRealPort software for Windows: Fixed in 4.10.490\n * \u200bDigi ConnectPort TS 8/16: Fixed in firmware version 2.26.2.4\n * \u200bDigi ConnectPort LTS 8/16/32: Fixed in version 1.4.9\n * \u200bDigi Connect ES: Fixed in firmware version 2.26.2.4\n\n\n\u200bFor more information, see the customer notification document https://www.digi.com/getattachment/resources/security/alerts/realport-cves/Dragos-Disclosure-Statement.pdf \u00a0published by Digi International.\n\n\n\n\n" } ], "credits": [ { "lang": "en", "value": "Reid Wightman of Dragos, Inc reported this vulnerability to Digi International." } ], "impact": { "cvss": [ { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1" } ] } }