CVE-2021-38448

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Please reference Trane service database number HUB-205962 when contacting the Trane office.\nTrane has identified the following specific mitigations:\n\nSymbio 700 controllers: Upgrade to v1.00.0023 or later\nSymbio 800 controllers: Upgrade to v1.00.0007 or later\nIn addition to the specific recommendations above, Trane continues to recommend the following best practices as an additional protection against this and other controller vulnerabilities:\n\nRestrict physical controller access to trained and trusted personnel.\nUse secure remote access solutions, such as Trane Connect Remote Access, when needed.\nEnsure user credentials are not shared and follow best practices for appropriate complexity (e.g., strong passwords).\nHave a well-documented process and owner to ensure regular software/firmware updates and keep systems up to date."}], "source": {"advisory": "ICSA-21-266-01", "discovery": "UNKNOWN"}, "title": "Trane Symbio Improper Control of Generation of Code", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "ics-cert@hq.dhs.gov", "ID": "CVE-2021-38448", "STATE": "PUBLIC", "TITLE": "Trane Symbio Improper Control of Generation of Code"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Symbio", "version": {"version_data": [{"version_affected": "<", "version_name": "700", "version_value": "1.00.0023"}, {"version_affected": "<", "version_name": "800", "version_value": "1.00.0007"}]}}]}, "vendor_name": "Trane"}]}}, "credit": [{"lang": "eng", "value": "Trane reported this vulnerability to CISA."}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-94 Improper Control of Generation of Code ('Code Injection')"}]}]}, "references": {"reference_data": [{"name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01", "refsource": "CONFIRM", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01"}]}, "solution": [{"lang": "en", "value": "Affected users should contact a Trane representative to install updated firmware or request additional information. Please reference Trane service database number HUB-205962 when contacting the Trane office.\nTrane has identified the following specific mitigations:\n\nSymbio 700 controllers: Upgrade to v1.00.0023 or later\nSymbio 800 controllers: Upgrade to v1.00.0007 or later\nIn addition to the specific recommendations above, Trane continues to recommend the following best practices as an additional protection against this and other controller vulnerabilities:\n\nRestrict physical controller access to trained and trusted personnel.\nUse secure remote access solutions, such as Trane Connect Remote Access, when needed.\nEnsure user credentials are not shared and follow best practices for appropriate complexity (e.g., strong passwords).\nHave a well-documented process and owner to ensure regular software/firmware updates and keep systems up to date."}], "source": {"advisory": "ICSA-21-266-01", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:44:22.375Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-266-01"}]}]}, "cveMetadata": {"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "assignerShortName": "icscert", "cveId": "CVE-2021-38448", "datePublished": "2021-11-22T18:58:45.000Z", "dateReserved": "2021-08-10T00:00:00.000Z", "dateUpdated": "2024-08-04T01:44:22.375Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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