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IIST-SV-000135: Accept only system-generated session identifiers

The IIS 10.0 web server must accept only system-generated session identifiers.
To check compliance with IIST-SV-000135, complete the following steps:
  1. Open the IIS 10.0 Manager.
  2. Click the IIS 10.0 web server name.
  3. In the
    ASP.NET
    section, select
    Session State
    .
  4. Under
    Cookie Settings
    , verify that the
    Use Cookies
    option is selected from the
    Mode:
    drop-down list.
  5. Under
    Time-out (in minutes)
    , verify that
    20 minutes or less
    is selected.
If the
Use Cookies
option is selected, and
Time-out (in minutes)
is not set to
20 minutes or less
, you server is not compliant.
If your IIS 10.0 server/site is used only for system-to-system maintenance, does not allow users to connect to the interface, and is restricted to specific system IPs, this is not applicable.
If your server is not compliant, complete the following steps:
  1. Open the IIS 10.0 Manager.
  2. Click the IIS 10.0 web server name.
  3. In the
    ASP.NET
    section, click
    Session State
    .
  4. In the
    Actions
    pane, click
    Apply
    .
  5. Under
    Cookie Settings
    , select the
    Use Cookies
    option from the
    Mode:
    drop-down list.
  6. Under
    Time-out (in minutes)
    , click
    20 minutes or less
    .