CVE-2019-7593

Metasys use of shared RSA key pairs

State: Published
Severity: 6.8 Medium
Published: Aug 20, 2019
Updated: Aug 4, 2024
Reserved: Feb 7, 2019

Description

Metasys® ADS/ADX servers and NAE/NIE/NCE engines prior to 9.0 make use of a shared RSA key pair for certain encryption operations involving the Site Management Portal (SMP).

Scores

CVSS	Score	Vector	Source
3.0	6.8 Medium	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N	jci

Weaknesses

CWE-323 Reusing a Nonce, Key Pair in Encryption

Affected Products

Product	Versions
Metasys versions prior to 9.0Johnson Controls	9.0Not affected

References

https://www.johnsoncontrols.com/-/media/jci/cyber-solutions/product-security-advisories/2019/jci-psa-2019-06-v1-metasys-icsa-19-227-01.pdf
https://www.us-cert.gov/ics/advisories/icsa-19-227-01

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