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XCCDF
Guide to the Secure Configuration of Ubuntu 22.04
System Settings
Network Configuration and Firewalls
Transport Layer Security Support
Transport Layer Security Support
An XCCDF Group - A logical subset of the XCCDF Benchmark
Details
Profiles
Prose
Transport Layer Security Support
1 Rule
Support for Transport Layer Security (TLS), and its predecessor, the Secure Sockets Layer (SSL), is included in Red Hat Enterprise Linux in the OpenSSL software (RPM package
openssl
). TLS provides encrypted and authenticated network communications, and many network services include support for it. TLS or SSL can be leveraged to avoid any plaintext transmission of sensitive data.
For information on how to use OpenSSL, see
http://www.openssl.org/docs/
. Information on FIPS validation of OpenSSL is available at
http://www.openssl.org/docs/fips.html
and
http://csrc.nist.gov/groups/STM/cmvp/documents/140-1/140val-all.htm
.
Only Allow DoD PKI-established CAs
Medium Severity
The operating system must only allow the use of DoD PKI-established certificate authorities for verification of the establishment of protected sessions.