MISP / MISP/PyMISP

MISP to Sentinel Sync Error

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Dominant language
Python
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Avg merge
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Merged PRs (30d)
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Description

Discussed in https://github.com/MISP/PyMISP/discussions/758

Originally posted by anuashokas June 21, 2021
Could Somebody please help me to sort an issue while syncing data from MISP to Azure sentinel? Some of the threat intelligence data is not picking by MS graph API. Error Logs showing the following error.

"Error": "Target: body - ValidationFailed - Validation of indicator content failed.\nTarget: networkDestinationIPv4 - ValidationFailed - The value 51.158.66.18/32 is not a valid IPv4 address.\nThe value 51.158.66.18/32 is not a valid IPv4 address.",

I think the script method parsing the data that need to modify, but not sure how to do it.

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked discussion and the MISP-to-Azure Sentinel sync path, then inspect how data is parsed before the Microsoft Graph API request. Reproduce the reported validation error with the 51.158.66.18/32 indicator; done means the sync handles the indicator in a form accepted by the API.

Written by the indexing model from the issue text.

Assessment

Tech stack
azure, python
Domain
api, cloud, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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