MISP / MISP/misp-warninglists

microsoft-office365 contains CIDR blocs

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#40 1 comment 0 reactions 0 assignees View on GitHub

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Dominant language
Python
Stars
650
Forks
195
Avg merge
18h 17m
Merged PRs (30d)
74

Description

List of known Office 365 URLs and IP address ranges contains some CIRD blocks, but as it is a mix of domains, IPs and blocks, it is quite difficult to properly figure out what is in this list.

And as the type isn't cird, I'm pretty sure MISP doesn't use this list properly.

@iglocska what do you think?

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  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 lists/microsoft-office365/list.json and inspect how its domains, IPs, and CIDR blocks are represented and typed. Compare the declared type with the mixed contents and verify how MISP consumes the list; done means the entries are unambiguous and CIDR blocks are handled correctly.

Written by the indexing model from the issue text.

Assessment

Tech stack
json
Domain
security
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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