Detections
Analytics
WN11-CC-000052 - Windows 11 must be configured to prioritize ECC Curves with longer key lengths first.
Information
Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. By default Windows uses ECC curves with shorter key lengths first. Requiring ECC curves with longer key lengths to be prioritized first helps ensure more secure algorithms are used.Solution
Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> SSL Configuration Settings >> 'ECC Curve Order' to 'Enabled' with 'ECC Curve Order:' including the following in the order listed:NistP384
NistP256
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_11_V2R11_STIG.zip
Item Details
Audit Name: DISA Microsoft Windows 11 STIG v2r11
Category: IDENTIFICATION AND AUTHENTICATION
References: 800-53|IA-7, CAT|II, CCI|CCI-000803, Rule-ID|SV-253363r1268232_rule, STIG-ID|WN11-CC-000052, Vuln-ID|V-253363
Plugin: Windows
Control ID: 66fc1fd5aa89e5d800d60639d6c31a2b5d8de69c76919f2ac255c257bb2afd73