Changes are coming to https://stigviewer.com.
Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey
The SIP security mode in Lync must be enabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-223344 | O365-LY-000001 | SV-223344r508019_rule | Medium |
| Description |
|---|
| When Lync connects to the server, it supports various authentication mechanisms. This policy allows the user to specify whether Digest and Basic authentication are supported. Disabled (default): NTLM/Kerberos/TLS-DSK/Digest/Basic Enabled: Authentication mechanisms: NTLM/Kerberos/TLS-DSK Gal Download: Requires HTTPS if user is not logged in as an internal user. |
| STIG | Date |
|---|---|
| Microsoft Office 365 ProPlus Security Technical Implementation Guide | 2020-09-11 |
Details
| Check Text ( C-25017r442251_chk ) |
|---|
| Verify the policy value for Computer Configuration >> Administrative Templates >> Skype for Business 2016 >> Microsoft Lync Feature Policies "Configure SIP security mode" is set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\office\16.0\lync If the value enablesiphighsecuritymode is REG_DWORD = 1, this is not a finding. |
| Fix Text (F-25005r442252_fix) |
|---|
| Set the policy value for Computer Configuration >> Administrative Templates >> Skype for Business 2016 >> Microsoft Lync Feature Policies "Configure SIP security mode" to "Enabled". |