This article explains ROBOT attack, RSA Key Exchange, OpenSSL and KSC.

Explanation

If you are running security analyzer and it shows that connections on ports 13000 (server-nagent traffic) and 17000 (activation proxy) are suspicious for a ROBOT attack, don't panic.

1. Automatic analysis is not accurate. Run specific diagnostics to make sure that KSC traffic is actually not vulnerable. Examples:
   1. https://testssl.sh/
   2. https://github.com/robotattackorg/robot-detect
2. Check https://mta.openssl.org/pipermail/openssl-dev/2017-December/009887.html that ROBOT attack site is referencing.  It states that "We're mostly focused on non-timing issues and OpenSSL is not among the vulnerable implementations", although OpenSSL uses RSA Key Exchange.

More information

What is ROBOT attack – https://robotattack.org/