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The LanMan authentication level will be set to Send NTLMv2 response only\refuse LM & NTLM.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-1153 | 3.031 | SV-32300r1_rule | IAIA-2 IAIA-1 | High |
| Description |
|---|
| The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. The Windows NTLM protocol is retained in later Windows versions for compatibility with clients and servers that are running earlier versions. It is also used to authenticate logons to stand-alone computers that are running later versions. |
| STIG | Date |
|---|---|
| Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide | 2014-04-08 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-28810r1_fix) |
|---|
| Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: LAN Manager authentication level” to “Send NTLMv2 response only\refuse LM & NTLM”. |