Unified Response Framework (OCSF)

Unified Response Framework

One language to rule them all.

1. The Fragmentation Problem

To block a user, you need the Okta console. To isolate a host, you need CrowdStrike. To block an IP, you need Palo Alto.

  • Result: Slow response, context switching, API hell.

2. OCSF as the Rosetta Stone

We discussed OCSF for detection (mapping User_Name to user.name). It is equally powerful for Response.

  • By normalizing data into a standardized framework, we can abstract the "Action" from the "Technology".

3. Abstracted Actions & Centralized Control

Instead of writing a script for "CrowdStrike Isolate", we act on the Framework.

Example Workflow

  1. Detection: Alert comes in Normalized (OCSF). Field device.ip is 10.0.0.5.
  2. Decision: "Isolate Device".
  3. Routing: The Automation Framework (SOAR) looks up 10.0.0.5.
    • It sees this IP belongs to a server managed by SentinelOne.
    • It automatically routes the "Isolate" command to the SentinelOne API.
    • If the device was a laptop managed by CrowdStrike, it would route to CrowdStrike API.

4. The Vision: Source Agnostic Ops

  • You build ONE Playbook: "Ransomware Containment".
  • It actions user.disable and device.isolate.
  • The underlying API calls are handled dynamically based on the OCSF mapping.
  • You can swap vendors (CrowdStrike -> SentinelOne) without rewriting your entire SOC playbook library.