Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Ubuntu 22.04 LTS must configure the Uncomplicated Firewall (ufw) to rate-limit impacted network interfaces.
<VulnDiscussion>Denial of service (DoS) is a condition when a resource is not available for legitimate users. When this occurs, the organizat...Rule Medium Severity -
SRG-OS-000096-GPOS-00050
<GroupDescription></GroupDescription>Group -
Ubuntu 22.04 LTS must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.
<VulnDiscussion>To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embeddi...Rule Medium Severity -
SRG-OS-000355-GPOS-00143
<GroupDescription></GroupDescription>Group -
Ubuntu 22.04 LTS must, for networked systems, compare internal information system clocks at least every 24 hours with a server synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS).
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Low Severity -
SRG-OS-000356-GPOS-00144
<GroupDescription></GroupDescription>Group -
Ubuntu 22.04 LTS must synchronize internal information system clocks to the authoritative time source when the time difference is greater than one second.
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Low Severity -
SRG-OS-000359-GPOS-00146
<GroupDescription></GroupDescription>Group -
Ubuntu 22.04 LTS must not allow unattended or automatic login via SSH.
<VulnDiscussion>Failure to restrict system access to authenticated users negatively impacts Ubuntu 22.04 LTS security.</VulnDiscussion>...Rule High Severity -
SRG-OS-000126-GPOS-00066
<GroupDescription></GroupDescription>Group
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