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The Send download LanMan compatible password option is not set to Send NTLMv2 response only\refuse LM.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-1153 | 3.031 | SV-29011r1_rule | IAIA-1 IAIA-2 | High |
| Description |
|---|
| The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows. It is also used to authenticate logons to stand-alone computers that are running later versions. |
| STIG | Date |
|---|---|
| Windows 2003 Domain Controller Security Technical Implementation Guide | 2014-04-07 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-91r1_fix) |
|---|
| Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: LAN Manager authentication level” to at least “Send NTLMv2 response only\refuse LM”. |