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Windows must be configured to check for revoked application certificates.


Overview

Finding ID Version Rule ID IA Controls Severity
V-7064 APPNET0049 SV-41559r1_rule DCSL-1 Medium
Description
Microsoft Windows operating systems provide a feature called Authenticode. Authenticode technology and its underlying code signing mechanisms serve to provide a mechanism to identify software publishers and ensure that software applications have not been tampered with. Authenticode technology relies on digital certificates and is based on Public Key Cryptography Standards (PKCS) #7 (encrypted key specification), PKCS #10 (certificate request formats), X.509 (certificate specification), and Secure Hash Algorithm (SHA) and MD5 hash algorithms. .Net application developers sign their application code with their public key and Authenticode technology performs certificate validation tasks prior to allowing the application to run. If the system is not configured properly, Authenticode will not check for revoked certificates creating an integrity risk that could result in malware being run on the system.
STIG Date
Microsoft Dot Net Framework 4.0 STIG 2015-09-15

Details

Check Text ( None )
None
Fix Text (F-35213r9_fix)
Using regedit, change the hexadecimal value of the "HKEY_USER\[UNIQUE USER SID VALUE]\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing\State" registry key.

For production systems, change the hexadecimal values for nibble position 3 to "0".

For development systems, change the hexadecimal values for nibble position 3 to "0" or the IAO must provide documented approval.

Example fix:
Hex value: 10f00
Nibble position: 54321
To apply fix, the example hex value "f" in nibble position 3 would be changed to hex value "0" resulting in a hex value of 10000.