CVE-2019-7593 Metasys use of shared RSA key pairs
Attackers can decrypt traffic or impersonate devices in Johnson Controls Metasys systems due to shared RSA keys, compromising building automation security.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-7593?
CVE-2019-7593 is a medium-severity vulnerability in Johnson Controls Metasys versions prior to 9.0, published on 20 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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).
Which versions are affected by CVE-2019-7593?
It affects 1 product.
Products include Johnsoncontrols Metasys System.
How do I fix CVE-2019-7593?
No fix has been published for CVE-2019-7593 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-7593 being exploited?
There is no known exploitation of CVE-2019-7593 in the wild and no public exploit code.
Other vulnerabilities in Johnson Controls Metasys versions prior to 9.0
Sources
Also known as GHSA-47h2-cvf5-94gh.