III - Administrative Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000114-GPOS-00059
<GroupDescription></GroupDescription>Group -
The SUSE operating system must disable the file system automounter unless required.
<VulnDiscussion>Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity. S...Rule Medium Severity -
SRG-OS-000312-GPOS-00122
<GroupDescription></GroupDescription>Group -
The SUSE operating system Apparmor tool must be configured to control whitelisted applications and user home directory access control.
<VulnDiscussion>Using a whitelist provides a configuration management method for allowing the execution of only authorized software. Using on...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must disable the x86 Ctrl-Alt-Delete key sequence.
<VulnDiscussion>A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must disable the x86 Ctrl-Alt-Delete key sequence for Graphical User Interfaces.
<VulnDiscussion>A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as...Rule High Severity -
SRG-OS-000480-GPOS-00228
<GroupDescription></GroupDescription>Group -
The SUSE operating system default permissions must be defined in such a way that all authenticated users can only read and modify their own files.
<VulnDiscussion>Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary acc...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not have unnecessary accounts.
<VulnDiscussion>Accounts providing no operational purpose provide additional opportunities for system compromise. Unnecessary accounts includ...Rule Medium Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not have duplicate User IDs (UIDs) for interactive users.
<VulnDiscussion>To assure accountability and prevent unauthenticated access, interactive users must be identified and authenticated to preven...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system root account must be the only account having unrestricted access to the system.
<VulnDiscussion>If an account other than root also has a User Identifier (UID) of "0", it has root authority, giving that account unrestricte...Rule High Severity -
SRG-OS-000383-GPOS-00166
<GroupDescription></GroupDescription>Group -
If Network Security Services (NSS) is being used by the SUSE operating system it must prohibit the use of cached authentications after one day.
<VulnDiscussion>If cached authentication information is out of date, the validity of the authentication information may be questionable.</...Rule Medium Severity -
SRG-OS-000383-GPOS-00166
<GroupDescription></GroupDescription>Group -
The SUSE operating system must configure the Linux Pluggable Authentication Modules (PAM) to prohibit the use of cached offline authentications after one day.
<VulnDiscussion>If cached authentication information is out of date, the validity of the authentication information may be questionable.</...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All SUSE operating system 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 SUSE operating system 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 -
All SUSE operating system local interactive users must have a home directory assigned in the /etc/passwd file.
<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 SUSE operating system local interactive user accounts, upon creation, must be assigned a home directory.
<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 SUSE operating system 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 SUSE operating system 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 SUSE operating system 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 -
All SUSE operating system 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 SUSE operating system local interactive user initialization files executable search paths must contain only paths that resolve to the users home directory.
<VulnDiscussion>The executable search path (typically the PATH environment variable) contains a list of directories for the shell to search t...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
All SUSE operating system local initialization files must not execute world-writable programs.
<VulnDiscussion>If user start-up files execute world-writable programs, especially in unprotected directories, they could be maliciously modi...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SUSE operating system file systems that contain user home directories 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 must be...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SUSE operating system file systems that are used with removable media 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 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
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