Red Hat Enterprise Linux 8 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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All RHEL 8 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 "/" directo...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All RHEL 8 local interactive user accounts must be assigned a home directory upon creation.
<VulnDiscussion>If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files th...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All RHEL 8 local initialization files must have mode 0740 or less permissive.
<VulnDiscussion>Local initialization files are used to configure the user's shell environment upon logon. Malicious modification of these fil...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All RHEL 8 local files and directories must have a valid owner.
<VulnDiscussion>Unowned files and directories may be unintentionally inherited if a user is assigned the same User Identifier "UID" as the UI...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All RHEL 8 local files and directories must have a valid group owner.
<VulnDiscussion>Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
A separate RHEL 8 filesystem must be used for user home directories (such as /home or an equivalent).
<VulnDiscussion>The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...Rule Medium Severity -
SRG-OS-000480-GPOS-00229
<GroupDescription></GroupDescription>Group -
RHEL 8 must prevent the use of dictionary words for passwords.
<VulnDiscussion>If RHEL 8 allows the user to select passwords based on dictionary words, this increases the chances of password compromise by...Rule Medium Severity -
RHEL 8 temporary user accounts must be provisioned with an expiration time of 72 hours or less.
<VulnDiscussion>If temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
RHEL 8 must automatically lock an account when three unsuccessful logon attempts occur.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
RHEL 8 must automatically lock an account when three unsuccessful logon attempts occur.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
RHEL 8 must automatically lock an account when three unsuccessful logon attempts occur during a 15-minute time period.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity
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