IIS 10.0 website session IDs must be sent to the client using TLS.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-218769 | IIST-SI-000244 | SV-218769r961632_rule | CCI-002418 | medium |
| Description | ||||
| The HTTP protocol is a stateless protocol. To maintain a session, a session identifier is used. The session identifier is a piece of data used to identify a session and a user. If the session identifier is compromised by an attacker, the session can be hijacked. By encrypting the session identifier, the identifier becomes more difficult for an attacker to hijack, decrypt, and use before the session has expired. | ||||
| STIG | Date | |||
| Microsoft IIS 10.0 Site Security Technical Implementation Guide | 2025-06-09 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
SC-8
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.13.8
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-002418
1.00
- DISA · 2 · disa_xccdf · related
Details
Check Text (C-218769r961632_chk)
Follow the procedures below for each site hosted on the IIS 10.0 web server:
Access the IIS 10.0 Manager.
Select the website being reviewed.
Under "Management" section, double-click the "Configuration Editor" icon.
From the "Section:" drop-down list, select "system.webServer/asp".
Expand the "session" section.
Verify the "keepSessionIdSecure" is set to "True".
If the "keepSessionIdSecure" is not set to "True", this is a finding.
Fix Text (F-20240r311206_fix)
Follow the procedures below for each site hosted on the IIS 10.0 web server:
Access the IIS 10.0 Manager.
Select the website being reviewed.
Under "Management" section, double-click the "Configuration Editor" icon.
From the "Section:" drop-down list, select "system.webServer/asp".
Expand the "session" section.
Select "True" for the "keepSessionIdSecure" setting.
Select "Apply" from the "Actions" pane.