Detections
Analytics

MS.EXO.9.3v2 - Disallowed file types SHALL be determined and enforced.

Information

Malicious attachments often take the form of click-to-run files, though other file types can contain malicious content as well. As such, determining the full list of file types to block is left to each organization, to be made in accordance with their risk tolerance.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Any product meeting the requirements outlined in this baseline policy may be
used. If the agency uses Microsoft Defender, see the following
implementation steps for
[enabling preset security policies](./defender.md#implementation), which
disallow click-to-run file types.

See Also

https://github.com/cisagov/ScubaGear/tree/v1.8.0/

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-3

Plugin: microsoft_azure

Control ID: ca0fe90faf0324985b1fe1c9705bea1f8223e71be8c38b0cbdb4d40492647c42