SharePoint must employ FIPS-validated cryptography to protect unclassified information when such information must be separated from individuals who have the necessary clearances yet lack the necessary access approvals.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-59971	SP13-00-000100	SV-74401r3_rule		High

Description
Cryptography is only as strong as the encryption modules/algorithms employed to encrypt the data. Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. FIPS 140-2 Security Requirements for Cryptographic Modules can be found at the following web site: http://csrc.nist.gov/publications/fips/fips140-2/fips1402.pdf. Although persons may have a security clearance, they may not have a "need to know" and are required to be separated from the information in question. Applications must employ FIPS-validated cryptography to protect unclassified information from those individuals who have no "need to know".

Description

Cryptography is only as strong as the encryption modules/algorithms employed to encrypt the data. Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. FIPS 140-2 Security Requirements for Cryptographic Modules can be found at the following web site: http://csrc.nist.gov/publications/fips/fips140-2/fips1402.pdf. Although persons may have a security clearance, they may not have a "need to know" and are required to be separated from the information in question. Applications must employ FIPS-validated cryptography to protect unclassified information from those individuals who have no "need to know".

STIG	Date
MS SharePoint 2013 Security Technical Implementation Guide	2018-06-27

Details

Check Text ( C-60661r3_chk )
Review the SharePoint server configuration to ensure FIPS-validated cryptography is employed to protect unclassified information when such information must be separated from individuals who have the necessary clearances yet lack the necessary access approvals. Open MMC. Click "File", "Add/Remove Snap-in", and "add Group Policy Object Editor". Enter a name for the Group Policy Object, or accept the default. Click "Finish". Click "OK". Navigate to Computer Policy >> Computer Configuration >> Administrative Templates >> Network >> SSL Configuration settings. Right-click "SSL Configuration Settings", click "SSL Cipher Suite Order", click "Edit". In the "SSL Cipher Suite Order" dialog box, if "Enabled" is not selected, this is a finding. Under Options, in the "SSL Cipher Suites" text box, verify the following text is displayed: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_RSA_WITH_AES_256_CBC_SHA Click "OK". If any ciphers other than those listed above are present, this is a finding.

Check Text ( C-60661r3_chk )

Review the SharePoint server configuration to ensure FIPS-validated cryptography is employed to protect unclassified information when such information must be separated from individuals who have the necessary clearances yet lack the necessary access approvals.

Open MMC.

Click "File", "Add/Remove Snap-in", and "add Group Policy Object Editor".

Enter a name for the Group Policy Object, or accept the default.

Click "Finish".

Click "OK".

Navigate to Computer Policy >> Computer Configuration >> Administrative Templates >> Network >> SSL Configuration settings.

Right-click "SSL Configuration Settings", click "SSL Cipher Suite Order", click "Edit".

In the "SSL Cipher Suite Order" dialog box, if "Enabled" is not selected, this is a finding.

Under Options, in the "SSL Cipher Suites" text box, verify the following text is displayed:
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_RSA_WITH_AES_256_CBC_SHA

Click "OK".

If any ciphers other than those listed above are present, this is a finding.

Fix Text (F-65381r4_fix)
Configure SharePoint to employ FIPS-validated cryptography to protect unclassified information when such information must be separated from individuals who have the necessary clearances yet lack the necessary access approvals. Open MMC. Click “File”, “Add/Remove Snap-in”, and “add Group Policy Object Editor”. Enter a name for the Group Policy Object, or accept the default. Click “Finish”. Click “OK”. Navigate to Computer Policy >> Computer Configuration >> Administrative Templates >> Network >> SSL Configuration settings. Right-click “SSL Configuration Settings”, click “SSL Cipher Suite Order”, and then click “Edit”. In the “SSL Cipher Suite Order” dialog box, select "Enabled" option. Under “Options”, in the “SSL Cipher Suites” text box, delete everything, and then copy and paste from the following text: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_RSA_WITH_AES_256_CBC_SHA Click “OK”.

Fix Text (F-65381r4_fix)

Configure SharePoint to employ FIPS-validated cryptography to protect unclassified information when such information must be separated from individuals who have the necessary clearances yet lack the necessary access approvals.

Open MMC.

Click “File”, “Add/Remove Snap-in”, and “add Group Policy Object Editor”.

Enter a name for the Group Policy Object, or accept the default.

Click “Finish”.

Click “OK”.

Navigate to Computer Policy >> Computer Configuration >> Administrative Templates >> Network >> SSL Configuration settings.

Right-click “SSL Configuration Settings”, click “SSL Cipher Suite Order”, and then click “Edit”.

In the “SSL Cipher Suite Order” dialog box, select "Enabled" option.

Under “Options”, in the “SSL Cipher Suites” text box, delete everything, and then copy and paste from the following text:
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_RSA_WITH_AES_256_CBC_SHA

Click “OK”.