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WN11-UR-000110 The "Impersonate a client after authentication" user right must only be assigned to Administrators, Service, Local Service, and Network Service.

DISA STIG library V2R11
All changes in this version
first version loaded CAT II

Maps to AC-6(10) via CCI-002235

Title

The "Impersonate a client after authentication" user right must only be assigned to Administrators, Service, Local Service, and Network Service.

Control

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment. If any groups or accounts other than the following are granted the "Impersonate a client after authentication" user right, this is a finding: Administrators LOCAL SERVICE NETWORK SERVICE RESTRICTED SERVICES\PrintSpoolerService SERVICE

Discussion

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Impersonate a client after authentication" user right allows a program to impersonate another user or account to run on their behalf. An attacker could potentially use this to elevate privileges.

Related controls

CCI-002235

Fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Impersonate a client after authentication" to only include the following groups or accounts: Administrators LOCAL SERVICE NETWORK SERVICE RESTRICTED SERVICES\PrintSpoolerService SERVICE