{
    "CVE_data_meta": {
        "ASSIGNER": "ics-cert@hq.dhs.gov",
        "DATE_PUBLIC": "2021-09-27T15:34:00.000Z",
        "ID": "CVE-2021-38450",
        "STATE": "PUBLIC",
        "TITLE": "Trane Tracer Code Injection"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Tracer SC",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "All",
                                            "version_value": "4.4 SP7"
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Tracer SC+",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "All",
                                            "version_value": "5.5 SP3"
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Tracer Concierge",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "All",
                                            "version_value": "5.5 SP3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "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": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/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-21-266-02",
                "refsource": "CONFIRM",
                "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "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.\n\nTracer SC is no longer actively developed, tested, or sold. Tracer SC will be considered end-of-life on December 31, 2022. Trane recommends identifying a migration plan for replacing the Tracer SC controller with the next-generation Tracer SC+ controller. Tracer SC+ can function as a drop-in replacement for Tracer SC, providing significant updates to security capabilities.\n\nTrane has identified the following specific mitigations:\n\nTracer SC: Upgrade to v4.4 SP7 or later\nTracer SC+: Upgrade to v5.5 SP3 or later\nTracer Concierge: Upgrade to v5.5 SP3 or later"
        }
    ],
    "source": {
        "advisory": "https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02",
        "discovery": "UNKNOWN"
    }
}