Title

The system is configured to store the LAN Manager hash of the password in the SAM. (Cat I impact)

Discussion

This setting controls whether or not a LAN Manager hash of the password is stored in the SAM the next time the password is changed. The LAN Manager hash is a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords.

Check Content

Fix Text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: Do not store LAN Manager hash value on next password change” to “Enabled”.

Additional Identifiers

Rule ID: SV-29270r1_rule

Vulnerability ID: V-3379

Group Title: LAN Manager Hash stored

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.