From Microsoft Internet Explorer 11 Security Technical Implementation Guide
Part of DTBI350-IE11-Software with invalid signatures
Associated with IA controls: DCMC-1
Associated with: CCI-001170
Microsoft ActiveX controls and file downloads often have digital signatures attached that certify the file's integrity and the identity of the signer (creator) of the software. Such signatures help ensure unmodified software is downloaded and the user can positively identify the signer to determine whether you trust them enough to run their software.
Note: Some legitimate software and controls may have an invalid signature. You should carefully test such software in isolation before it is allowed to be used on an organization's network. The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Advanced Page -> 'Allow software to run or install even if the signature is invalid' must be 'Disabled'. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Internet Explorer\Download Criteria: If the value "RunInvalidSignatures" is REG_DWORD = 0, this is not a finding.
Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Advanced Page -> 'Allow software to run or install even if the signature is invalid' to 'Disabled'.
Lavender hyperlinks in small type off to the right (of CSS
class id, if you view the page source) point to
globally unique URIs for each document and item. Copy the
link location and paste anywhere you need to talk
unambiguously about these things.
You can obtain data about documents and items in other
formats. Simply provide an HTTP header Accept:
text/turtle or
Accept: application/rdf+xml.
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