SharePoint sites must not use NTLM.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-29301	SHPT-00-000531	SV-37822r2_rule	IAIA-1 IAIA-2	Medium

Description
An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. Techniques used to address this include protocols using nonce's or challenges (e.g., TLS, WS_Security), and time synchronous or challenge-response one-time authenticators. SharePoint must not use NTLM in the authentication process.

Description

An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. Techniques used to address this include protocols using nonce's or challenges (e.g., TLS, WS_Security), and time synchronous or challenge-response one-time authenticators. SharePoint must not use NTLM in the authentication process.

STIG	Date
SharePoint 2010 Security Technical Implementation Guide (STIG)	2012-10-12

Details

Check Text ( C-37023r3_chk )
SharePoint must be configured to not use NTLM. 1. Using IIS Manager (IIS 7), navigate to view the SharePoint Web Application sites. 2. Select a SharePoint Web Application site to review. 3. In the IIS section, double-click Authentication and then select Windows Authentication. 4. Right-click Windows Authentication and select Providers. 5. If NTLM is listed in the Enabled Providers box, this is a finding.

Check Text ( C-37023r3_chk )

SharePoint must be configured to not use NTLM.
1. Using IIS Manager (IIS 7), navigate to view the SharePoint Web Application sites.
2. Select a SharePoint Web Application site to review.
3. In the IIS section, double-click Authentication and then select Windows Authentication.
4. Right-click Windows Authentication and select Providers.
5. If NTLM is listed in the Enabled Providers box, this is a finding.

Fix Text (F-32291r5_fix)
1. Using IIS Manager (IIS 7), navigate to view the SharePoint Web Application sites. 2. Select a SharePoint Web Application site to configure. 3. In the IIS section, double-click Authentication and select Windows Authentication. 4. Right-click Windows Authentication and select Providers. 5. Add Negotiate to the list in the Enabled Providers box. 6. Remove NTLM from the list in the Enabled Providers box.

Fix Text (F-32291r5_fix)

1. Using IIS Manager (IIS 7), navigate to view the SharePoint Web Application sites.
2. Select a SharePoint Web Application site to configure.
3. In the IIS section, double-click Authentication and select Windows Authentication.
4. Right-click Windows Authentication and select Providers.
5. Add Negotiate to the list in the Enabled Providers box.
6. Remove NTLM from the list in the Enabled Providers box.