title: Trane Thermostats Injection
description:
​A command injection vulnerability exists in Trane XL824, XL850, XL1050, and Pivot thermostats allowing an attacker to execute arbitrary commands as root using a specially crafted filename. The vulnerability requires physical access to the device via a USB stick.
problem types: CWE-74 Injection
affected:
{
defaultStatus: unaffected
product: XL824 Thermostat
vendor: ​Trane Technologies
versions:
lessThanOrEqual: 5.9.8 , status: affected, version: 0, versionType: custom
}
{
defaultStatus: unaffected
product: XL850 Thermostat
vendor: ​Trane Technologies
versions:
lessThanOrEqual: 5.9.8, status: affected, version: 0, versionType: custom
}
{
defaultStatus: unaffected
product: XL1050 Thermostat
vendor: ​Trane Technologies
versions:
lessThanOrEqual: 5.9.8 , status: affected, version: 0, versionType: custom
}
{
defaultStatus: unaffected
product: Pivot Thermostat
vendor: Trane Technologies
versions:
lessThanOrEqual: 1.8 , status: affected, version: 0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: PHYSICAL
availabilityImpact: HIGH
baseScore: 6.8
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions:
Trane Technologies has pushed the patch out to all devices. The patch is available to all affected devices. As soon as the device is connected to the internet, it will check for a new firmware version. If a new version is available, the device will download and install it. Other than connecting the device to the internet, no user interaction is required.
​If a user wants to verify that they received a patch for this vulnerability, they can verify the firmware version is greater than what is listed above by navigating to the "About" screen on the thermostat. Menu > System Info > About.
​For more information, users may contact their local  Trane sales office https://www.trane.com/commercial/north-america/us/en/contact-us/locate-sales-offices.html .
​Trane has published  a service database article on their website https://hub.tranetechnologies.com/docs/DOC-216377  (login required).