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CVE-2021-42534— Trane Building Automation Controllers Cross-site Scripting

Quick assessment

Affected
Trane Tracer SC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Trane Tracer SC是澳大利亚Trane公司的一种智能现场面板，可与单元控制器（LON 或 BACnet）通信，提供对 HVAC 设备的独立控制。 Trane Tracer SC中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。

CVSS 6.3 · Medium EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-42534

Vulnerability Information
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Vulnerability Title
Trane Building Automation Controllers Cross-site Scripting
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Trane Tracer SC 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Trane Tracer SC是澳大利亚Trane公司的一种智能现场面板，可与单元控制器（LON 或 BACnet）通信，提供对 HVAC 设备的独立控制。 Trane Tracer SC中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Trane Tracer SC All ~ 3.8 -

II. Public POCs for CVE-2021-42534

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III. Intelligence Information for CVE-2021-42534

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Vendor Advisories for CVE-2021-42534 (1)

IV. Related Vulnerabilities

Same product: Tracer SC
Same vendor: Trane
Same weakness: CWE-79

V. Comments for CVE-2021-42534

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