Check: WN19-SO-000250
Microsoft Windows Server 2019 STIG:
WN19-SO-000250
(in versions v3 r2 through v1 r1)
Title
Windows Server 2019 must restrict anonymous access to Named Pipes and Shares. (Cat I impact)
Discussion
Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restricts access to those defined in "Network access: Named Pipes that can be accessed anonymously" and "Network access: Shares that can be accessed anonymously", both of which must be blank under other requirements.
Check Content
If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: RestrictNullSessAccess Value Type: REG_DWORD Value: 0x00000001 (1)
Fix Text
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Restrict anonymous access to Named Pipes and Shares" to "Enabled".
Additional Identifiers
Rule ID: SV-205725r958524_rule
Vulnerability ID: V-205725
Group Title: SRG-OS-000138-GPOS-00069
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001090 |
Prevent unauthorized and unintended information transfer via shared system resources. |
Controls
Number | Title |
---|---|
SC-4 |
Information in Shared Resources |