III - Administrative Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SUSE operating system file systems that are being imported via Network File System (NFS) must be mounted to prevent files with the setuid and setgid bit set from being executed.
<VulnDiscussion>The "nosuid" mount option causes the system to not execute "setuid" and "setgid" files with owner privileges. This option mus...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SUSE operating system file systems that are being imported via Network File System (NFS) must be mounted to prevent binary files from being executed.
<VulnDiscussion>The "noexec" mount option causes the system to not execute binary files. This option must be used for mounting any file syste...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All SUSE operating system world-writable directories must be group-owned by root, sys, bin, or an application group.
<VulnDiscussion>If a world-writable directory has the sticky bit set and is not group-owned by a privileged Group Identifier (GID), unauthori...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SUSE operating system kernel core dumps must be disabled unless needed.
<VulnDiscussion>Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a co...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
A separate file system must be used for SUSE operating system 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 Low Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must use a separate file system for /var.
<VulnDiscussion>The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...Rule Low Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must use a separate file system for the system audit data path.
<VulnDiscussion>The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...Rule Low Severity -
SRG-OS-000206-GPOS-00084
<GroupDescription></GroupDescription>Group -
The SUSE operating system must prevent unauthorized users from accessing system error messages.
<VulnDiscussion>Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an orga...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must be configured to not overwrite Pluggable Authentication Modules (PAM) configuration on package changes.
<VulnDiscussion>"pam-config" is a command line utility that automatically generates a system PAM configuration as packages are installed, upd...Rule Medium Severity -
SRG-OS-000337-GPOS-00129
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have the auditing package installed.
<VulnDiscussion>Without establishing what type of events occurred, the source of events, where events occurred, and the outcome of events, it...Rule Medium Severity -
SRG-OS-000037-GPOS-00015
<GroupDescription></GroupDescription>Group -
SUSE operating system audit records must contain information to establish what type of events occurred, the source of events, where events occurred, and the outcome of events.
<VulnDiscussion>Without establishing what type of events occurred, the source of events, where events occurred, and the outcome of events, it...Rule Medium Severity -
SRG-OS-000341-GPOS-00132
<GroupDescription></GroupDescription>Group -
The SUSE operating system must allocate audit record storage capacity to store at least one weeks worth of audit records when audit records are not immediately sent to a central audit record storage facility.
<VulnDiscussion>To ensure SUSE operating systems have a sufficient storage capacity in which to write the audit logs, SUSE operating systems ...Rule Medium Severity -
SRG-OS-000343-GPOS-00134
<GroupDescription></GroupDescription>Group -
The SUSE operating system auditd service must notify the System Administrator (SA) and Information System Security Officer (ISSO) immediately when audit storage capacity is 75 percent full.
<VulnDiscussion>If security personnel are not notified immediately when storage volume reaches 75 percent utilization, they are unable to pla...Rule Medium Severity -
SRG-OS-000046-GPOS-00022
<GroupDescription></GroupDescription>Group -
The Information System Security Officer (ISSO) and System Administrator (SA), at a minimum, must be alerted of a SUSE operating system audit processing failure event.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Medium Severity -
SRG-OS-000046-GPOS-00022
<GroupDescription></GroupDescription>Group -
The Information System Security Officer (ISSO) and System Administrator (SA), at a minimum, must have mail aliases to be notified of a SUSE operating system audit processing failure.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Medium Severity -
SRG-OS-000047-GPOS-00023
<GroupDescription></GroupDescription>Group -
The SUSE operating system audit system must take appropriate action when the audit storage volume is full.
<VulnDiscussion>It is critical that when the SUSE operating system is at risk of failing to process audit logs as required, it takes action t...Rule Medium Severity -
SRG-OS-000342-GPOS-00133
<GroupDescription></GroupDescription>Group -
The audit-audispd-plugins must be installed on the SUSE operating system.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-OS-000342-GPOS-00133
<GroupDescription></GroupDescription>Group -
The SUSE operating system audit event multiplexor must be configured to use Kerberos.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Allowing devices and us...Rule Low Severity -
SRG-OS-000342-GPOS-00133
<GroupDescription></GroupDescription>Group -
Audispd must off-load audit records onto a different system or media from the SUSE operating system being audited.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Low Severity -
SRG-OS-000479-GPOS-00224
<GroupDescription></GroupDescription>Group -
The audit system must take appropriate action when the network cannot be used to off-load audit records.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-OS-000479-GPOS-00224
<GroupDescription></GroupDescription>Group -
Audispd must take appropriate action when the SUSE operating system audit storage is full.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-OS-000057-GPOS-00027
<GroupDescription></GroupDescription>Group -
The SUSE operating system must protect audit rules from unauthorized modification.
<VulnDiscussion>Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel ma...Rule Medium Severity -
SRG-OS-000256-GPOS-00097
<GroupDescription></GroupDescription>Group -
The SUSE operating system audit tools must have the proper permissions configured to protect against unauthorized access.
<VulnDiscussion>Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not disable syscall auditing.
<VulnDiscussion>By default, the SUSE operating system includes the "-a task,never" audit rule as a default. This rule suppresses syscall audi...Rule Medium Severity -
SRG-OS-000004-GPOS-00004
<GroupDescription></GroupDescription>Group -
The SUSE operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd.
<VulnDiscussion>Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestab...Rule Medium Severity
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