WN22-00-000030 - Windows Server 2022 administrative accounts must not be used with applications that access the internet, such as web browsers, or with potential internet sources, such as email.

Information

Accounts with administrative privileges using applications that access the internet, or have potential internet sources, expose a system to compromise. If a flaw in an application is exploited while running as a privileged user, the entire system could be compromised. Web browsers and email are common attack vectors for introducing malicious code and must not be run with an administrative account.

Because administrative accounts could change or work around technical restrictions for running a web browser or other applications, it is essential that a policy prohibits administrative accounts accessing the internet or using public-facing applications such as email.

The policy must define specific exceptions for local service administration. These exceptions may include HTTP(S)-based tools that are used for the administration of the local system, services, or attached devices.

Technical methods (such as allow listing) must be used to enforce the policy, except as approved by the authorizing official (AO).

Satisfies: SRG-OS-000480-GPOS-00227, SRG-OS-000205-GPOS-00083

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

Solution

Establish a policy, at minimum, to prohibit administrative accounts from using applications that access public-facing networks or the internet, such as web browsers, or applications with potential internet sources, such as email.

Ensure the policy is enforced by technical means, such as allow listing via AppLocker or SRPs.

Document any exceptions to technical enforcement with the ISSO.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_Server_2022_V2R10_STIG.zip