Canonical Ubuntu 18.04 LTS Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system SSH daemon must prevent remote hosts from connecting to the proxy display.
<VulnDiscussion>When X11 forwarding is enabled, there may be additional exposure to the server and client displays if the SSHD proxy display ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All local interactive user home directories defined in the /etc/passwd file must exist.
<VulnDiscussion>If a local interactive user has a home directory defined that does not exist, the user may be given access to the / directory...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All local interactive user home directories must have mode 0750 or less permissive.
<VulnDiscussion>Excessive permissions on local interactive user home directories may allow unauthorized access to user files by other users.&...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All local interactive user home directories must be group-owned by the home directory owners primary group.
<VulnDiscussion>If the Group Identifier (GID) of a local interactive user’s home directory is not the same as the primary GID of the user, th...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must not have accounts configured with blank or null passwords.
<VulnDiscussion>If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with ...Rule High Severity
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