The system is configured to store the LAN Manager hash of the password in the SAM.

From Windows 2003 Domain Controller Security Technical Implementation Guide

Part of LAN Manager Hash stored

Associated with IA controls: ECSC-1, IAIA-2, IAIA-1

SV-29268r1_rule The system is configured to store the LAN Manager hash of the password in the SAM.

Vulnerability 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.

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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”.

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