WEBSERVICE functions must be disabled.
An XCCDF Rule
Description
The WEBSERVICE function option, when used in an Excel spreadsheet, returns data from a web service on the Internet or Intranet. If allowed to be used, security is significantly reduced by allowing information disclosure to third party web services and could potentially introduce malicious content to the local network. The WEBSERVICE function must be disabled in Excel and configured to notify user if a WEBSERVICE function is present in an Excel spreadsheet.
| Property | Value |
|---|---|
| Responsibility | System Administrator |
- ID
- SV-53841r1_rule
- Version
- DTOO418
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Set policy value for User Configuration -> Administrative Templates -> Microsoft Excel 2013 -> Excel Options -> Security -> " WEBSERVICE Function Notification Settings" is set to "Enabled: Disable all with notifications".