Detections
Analytics

WN19-UC-000010 - Windows Server 2019 must preserve zone information when saving attachments.

Information

Attachments from outside sources may contain malicious code. Preserving zone of origin (Internet, intranet, local, restricted) information on file attachments allows Windows to determine risk.

Solution

The default behavior is for Windows to mark file attachments with their zone information.

If this needs to be corrected, configure the policy value for User Configuration >> Administrative Templates >> Windows Components >> Attachment Manager >> 'Do not preserve zone information in file attachments' to 'Not Configured' or 'Disabled'.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_Server_2019_V3R9_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-205924r991589_rule, STIG-ID|WN19-UC-000010, STIG-Legacy|SV-103399, STIG-Legacy|V-93311, Vuln-ID|V-205924

Plugin: Windows

Control ID: cdda463911b0e05a61d3e76c975d5a30674f08dec02576c8d2c633fdae9a8623