Check: DTBI1075-IE11
Microsoft Internet Explorer 11 STIG:
DTBI1075-IE11
(in versions v2 r5 through v1 r11)
Title
Prevent ignoring certificate errors option must be enabled. (Cat II impact)
Discussion
This policy setting prevents the user from ignoring Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificate errors that interrupt browsing (such as “expired”, “revoked”, or “name mismatch” errors) in Internet Explorer. If you enable this policy setting, the user cannot continue browsing. If you disable or do not configure this policy setting, the user can choose to ignore certificate errors and continue browsing.
Check Content
The policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Internet Explorer >> Internet Control Panel >> ”Prevent ignoring certificate errors” must be ”Enabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings. Criteria: If the value "PreventIgnoreCertErrors" is REG_DWORD = 1, this is not a finding.
Fix Text
Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Internet Explorer >> Internet Control Panel >> ”Prevent ignoring certificate errors” to ”Enabled”.
Additional Identifiers
Rule ID: SV-223042r942482_rule
Vulnerability ID: V-223042
Group Title: SRG-APP-000427
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-001954 |
The information system electronically verifies Personal Identity Verification (PIV) credentials. |
| CCI-002470 |
The information system only allows the use of organization-defined certificate authorities for verification of the establishment of protected sessions. |
| CCI-002500 |
The organization defines the maximum bandwidth values to which covert storage and/or timing channels are to be reduced. |