Code Injection in Trane Symbio



Published: 2021-09-27
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-38448
CWE-ID CWE-94
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Symbio 700
Hardware solutions / Routers & switches, VoIP, GSM, etc

Symbio 800
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Code Injection

EUVDB-ID: #VU56880

Risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38448

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a local attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. An attacker with physical access can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Symbio 700: before 1.00.0023

Symbio 800: before 1.00.0007

External links

http://ics-cert.us-cert.gov/advisories/icsa-21-266-01


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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