Check: DTBI015-IE11
Microsoft Internet Explorer 11 STIG:
DTBI015-IE11
(in versions v2 r5 through v1 r11)
Title
The Internet Explorer warning about certificate address mismatch must be enforced. (Cat II impact)
Discussion
This parameter warns users if the certificate being presented by the website is invalid. Since server certificates are used to validate the identity of the web server it is critical to warn the user of a potential issue with the certificate being presented by the web server. This setting aids to prevent spoofing attacks.
Check Content
The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page 'Turn on certificate address mismatch warning' 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 "WarnOnBadCertRecving" 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 -> Security Page 'Turn on certificate address mismatch warning' to 'Enabled'.
Additional Identifiers
Rule ID: SV-223015r879887_rule
Vulnerability ID: V-223015
Group Title: SRG-APP-000516
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000366 |
The organization implements the security configuration settings. |
| CCI-001274 |
The organization employs automated mechanisms to alert security personnel of organization-defined inappropriate or unusual activities with security implications. |