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Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000396-GPOS-00176

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must implement NIST FIPS-validated cryptography to protect classified information and for the following: To provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.

    &lt;VulnDiscussion&gt;Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating ...
    Rule High Severity
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  • SRG-OS-000403-GPOS-00182

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  • The Ubuntu operating system must use DoD PKI-established certificate authorities for verification of the establishment of protected sessions.

    &lt;VulnDiscussion&gt;Untrusted Certificate Authorities (CA) can issue certificates, but they may be issued by organizations or individuals that se...
    Rule Medium Severity
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  • SRG-OS-000404-GPOS-00183

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  • Ubuntu operating system must implement cryptographic mechanisms to prevent unauthorized modification of all information at rest.

    &lt;VulnDiscussion&gt;Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthor...
    Rule Medium Severity
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  • SRG-OS-000405-GPOS-00184

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  • Ubuntu operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of all information at rest.

    &lt;VulnDiscussion&gt;Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthor...
    Rule Medium Severity
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  • SRG-OS-000420-GPOS-00186

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  • The Ubuntu operating system must configure the uncomplicated firewall to rate-limit impacted network interfaces.

    &lt;VulnDiscussion&gt;Denial of service (DoS) is a condition when a resource is not available for legitimate users. When this occurs, the organizat...
    Rule Medium Severity
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