Detections
Analytics
IIST-SV-000153 - An IIS 10.0 web server must maintain the confidentiality of controlled information during transmission through the use of an approved Transport Layer Security (TLS) version.
Information
TLS encryption is a required security setting for a private web server. Encryption of private information is essential to ensuring data confidentiality. If private information is not encrypted, it can be intercepted and easily read by an unauthorized party. A private web server must use a FIPS 140-2-approved TLS version, and all non-FIPS-approved SSL versions must be disabled.NIST SP 800-52 specifies the preferred configurations for government systems.
Solution
Access the IIS 10.0 Web Server.Navigate to:
HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server
Create a REG_DWORD named 'DisabledByDefault' with a value of '0'.
Create a REG_DWORD named 'Enabled' with a value of '1'.
Navigate to:
HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server
HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server
HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Server
For each protocol:
Create a REG_DWORD named 'DisabledByDefault' with a value of '1'.
Create a REG_DWORD named 'Enabled' with a value of '0'.
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_IIS_10-0_Y26M01_STIG.zip
Item Details
Audit Name: DISA IIS 10.0 Server v3r6
Category: SYSTEM AND COMMUNICATIONS PROTECTION
References: 800-53|SC-8, CAT|I, CCI|CCI-002418, Rule-ID|SV-218821r1067596_rule, STIG-ID|IIST-SV-000153, STIG-Legacy|SV-109281, STIG-Legacy|V-100177, Vuln-ID|V-218821
Plugin: Windows
Control ID: 147d09161e7593597fbd732f0443186ec23ed8ce0faedef29f424a60e0a2871b