V-218743
CAT IIThe IIS 10.0 website must have Multipurpose Internet Mail Extensions (MIME) that invoke OS shell programs disabled.
- Ships Affected
- 2
- Total Findings
- 4
- Open
- 3
- Closed
- 1
Check Text
Note: If the server is hosting WSUS, this is not applicable.
Follow the procedures below for each site hosted on the IIS 10.0 web server:
Open the IIS 10.0 Manager.
Click on the IIS 10.0 site.
Under IIS, double-click the “MIME Types” icon.
From the "Group by:" drop-down list, select "Content Type".
From the list of extensions under "Application", verify MIME types for OS shell program extensions have been removed, to include at a minimum, the following extensions:
.exe
.dll
.com
.bat
.csh
If any OS shell MIME types are configured, this is a finding.
Fix Text
Follow the procedures below for each site hosted on the IIS 10.0 web server:
Open the IIS 10.0 Manager.
Click on the IIS 10.0 site.
Under IIS, double-click the “MIME Types” icon.
From the "Group by:" drop-down list, select "Content Type".
From the list of extensions under "Application", remove MIME types for OS shell program extensions, to include at a minimum, the following extensions:
.exe
.dll
.com
.bat
.csh
Select "Apply" from the "Actions" pane.
STIG Reference
- STIG
- Microsoft IIS 10.0 Site Security Technical Implementation Guide
- Version
- 2
- Release
- 15
- Rule ID
- SV-218743r1156522_rule
All Occurrences
This vulnerability appears on 2 ship(s)
| Ship | Hull # | Source File | Status | Assigned To | Scan Date | Actions |
|---|---|---|---|---|---|---|
| LAB BASELINES | BASELINE | SCHR-P3-DP-001_IIS10Site_Default_Web_Site_V2R14_20260305-133115.cklb | Unassigned | 2026-03-12T15:38:14.459023 | View in Context | |
| USNS MONTFORD POINT | T-ESD-1 | _Reviewed/MONT-DP-001/Checklist/MONT-DP-001_IIS10Site_Default_Web_Site_V2R12_20251023-143912.ckl | Unassigned | 2026-01-14T12:57:35.375369 | View in Context | |
| USNS MONTFORD POINT | T-ESD-1 | _Reviewed/MONT-MB-002/Checklist/MONT-MB-002_IIS10Site_Exchange_Back_End_V2R12_20251023-152602.ckl | Unassigned | 2026-01-14T12:57:33.300070 | View in Context | |
| USNS MONTFORD POINT | T-ESD-1 | _Reviewed/MONT-MB-002/Checklist/MONT-MB-002_IIS10Site_Default_Web_Site_V2R12_20251023-152518.ckl | Unassigned | 2026-01-14T12:57:33.098574 | View in Context |