A timeout during a TLS handshake can result in the connection failing to terminate. This can result in a Niagara thread hanging and requires a manual restart of Niagara (Versions 4.6.96.28, 4.7.109.20, 4.7.110.32, 4.8.0.110) and Niagara Enterprise Security (Versions 2.4.31, 2.4.45, 4.8.0.35) to correct.
The code has a synchronous call to a remote resource, but there is no timeout for the call, or the timeout is set to infinite.
Link | Tags |
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https://us-cert.cisa.gov/ics/advisories/icsa-20-224-03 | third party advisory us government resource |