MP.JL.CISOFFINT.L1.089 Encryption mode for Information Rights Management (IRM) is set to Enabled: Cipher Block Chaining (CBC)
Description
CIS Microsoft Intune for Office Benchmark, recommendation 2.3.27.12 (Level 1).
The test passes when an assigned settings catalog policy for Windows sets Microsoft Office 2016 > Security Settings > Encryption mode for Information Rights Management (IRM) to Enabled, with IRM Encryption Mode set to Cipher Block Chaining (CBC) in the same policy, and no other assigned policy sets it to something else.
Remediation action
- In the Microsoft Intune admin center, go to Devices > Configuration and open (or create) a settings catalog policy for Windows 10 and later.
- Add Microsoft Office 2016 > Security Settings > Encryption mode for Information Rights Management (IRM) and set it to Enabled, then set IRM Encryption Mode to Cipher Block Chaining (CBC).
- Assign the policy to your Windows devices, and remove any other assigned policy that sets it to something else.
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