[Tenable Vuln Management] Create the connector

[Jipegien]

Use case

Use Case 1: I want OpenCTI to highlight CVE that Tenable VM has confirmed are relevant to my network. I will use OpenCTI to know which threat actors/intrusion sets/malware are exploiting the CVE present in my network, which indicators are linked to the CVEs, and I want to know which CVEs have the most threats associated to them so that I can better prioritise what to patch first.

Use Case 2: Allow me to search CVE in OpenCTI that Tenable VM has reported are currently present in my network. Allow me to use this information to build custom dashboards

Proposed solution

Import connector creating Systems, CVE and Sightings between CVE and Systems.