CVE-2021-42534

Trane Building Automation Controllers Cross-site Scripting

Published Oct 22, 2021 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
The affected product’s web application does not properly neutralize the input during webpage generation, which could allow an attacker to inject code in the input forms.

Remediation

Vendor Solution

Trane has identified the following specific mitigations for the affected products: Users upgrade Tracer SC controllers running firmware v3.8 and prior, to firmware v4.4 SP7 or higher. Users should contact a regional Trane office to install updated firmware or request additional information and reference Trane service database number HUB-207592. Tracer SC is no longer actively developed, tested, or sold. Tracer SC will be considered end-of-life on December 31, 2022. Trane recommends users identify a migration plan to replace the Tracer SC controller with the Tracer SC+ controller, which can function as a drop-in replacement for Tracer SC, providing significant security upgrades.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-29503 The affected product’s web application does not properly neutralize the input during webpage generation, which could allow an attacker to inject code in the input forms.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Sep 16, 2024, 11:52 PM
Reserved
Oct 15, 2021, 12:00 AM
Status
Modified
Published
Oct 22, 2021, 2:15 PM
Modified
Jun 17, 2026, 4:09 AM