Detections
Analytics

1.215 WN11-SO-000180

Information

NTLM must be prevented from falling back to a Null session.

GROUP ID: V-253458
RULE ID: SV-253458r991589

NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.

Solution

Configure the policy value for

Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> 'Network security: Allow LocalSystem NULL session fallback'

to 'Disabled'.

See Also

https://workbench.cisecurity.org/benchmarks/27756

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CCI|CCI-000366, Rule-ID|SV-253458r991589_rule, STIG-ID|WN11-SO-000180, Vuln-ID|V-253458

Plugin: Windows

Control ID: 358854843b7e451f02357b27a50f61aea1aff83d5dda1bc3556f1e8171bcd1a5