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CIS SUSE Linux Enterprise 15 Benchmark Level 2 - Workstation

Rules and Groups employed by this XCCDF Profile

  • Uninstall dovecot Package

    The dovecot package can be removed with the following command: 
    $ sudo zypper remove dovecot
    Rule Unknown Severity
    Show

  • Disable Dovecot Service

    The dovecot service can be disabled with the following command: 
    $ sudo systemctl mask --now dovecot.service
    Rule Unknown Severity
    Show

  • LDAP

    LDAP is a popular directory service, that is, a standardized way of looking up information from a central database. SUSE Linux Enterprise 15 includ...
    Group
    Show

  • Configure OpenLDAP Clients

    This section provides information on which security settings are important to configure in OpenLDAP clients by manually editing the appropriate con...
    Group
    Show

  • Ensure LDAP client is not installed

    The Lightweight Directory Access Protocol (LDAP) is a service that provides a method for looking up information from a central database. The <code>...
    Rule Low Severity
    Show

  • Configure OpenLDAP Server

    This section details some security-relevant settings for an OpenLDAP server.
    Group
    Show

  • Uninstall openldap-servers Package

    The openldap2 package is not installed by default on a SUSE Linux Enterprise 15 system. It is needed only by the OpenLDAP server, not by the client...
    Rule Low Severity
    Show

  • Mail Server Software

    Mail servers are used to send and receive email over the network. Mail is a very common service, and Mail Transfer Agents (MTAs) are obvious target...
    Group
    Show

  • Configure SMTP For Mail Clients

    This section discusses settings for Postfix in a submission-only e-mail configuration.
    Group
    Show

  • Disable Postfix Network Listening

    Edit the file <code>/etc/postfix/main.cf</code> to ensure that only the following <code>inet_interfaces</code> line appears: <pre>inet_interfaces =...
    Rule Medium Severity
    Show

  • NFS and RPC

    The Network File System is a popular distributed filesystem for the Unix environment, and is very widely deployed. This section discusses the circ...
    Group
    Show

  • Uninstall nfs-utils Package

    The nfs-utils package can be removed with the following command: 
    $ sudo zypper remove nfs-utils
    Rule Low Severity
    Show

  • Disable All NFS Services if Possible

    If there is not a reason for the system to operate as either an NFS client or an NFS server, follow all instructions in this section to disable sub...
    Group
    Show

  • Disable Services Used Only by NFS

    If NFS is not needed, disable the NFS client daemons nfslock, rpcgssd, and rpcidmapd. <br><br> All of these daemons run with elevated privileges, a...
    Group
    Show

  • Uninstall rpcbind Package

    The rpcbind utility maps RPC services to the ports on which they listen. RPC processes notify rpcbind when they start, registering the ports they a...
    Rule Low Severity
    Show

  • Disable rpcbind Service

    The rpcbind utility maps RPC services to the ports on which they listen. RPC processes notify rpcbind when they start, registering the ports they a...
    Rule Low Severity
    Show

  • Configure NFS Clients

    The steps in this section are appropriate for systems which operate as NFS clients.
    Group
    Show

  • Disable NFS Server Daemons

    There is no need to run the NFS server daemons <code>nfs</code> and <code>rpcsvcgssd</code> except on a small number of properly secured systems de...
    Group
    Show

  • Disable Network File System (nfs)

    The Network File System (NFS) service allows remote hosts to mount and interact with shared filesystems on the local system. If the local system is...
    Rule Unknown Severity
    Show

  • Network Time Protocol

    The Network Time Protocol is used to manage the system clock over a network. Computer clocks are not very accurate, so time will drift unpredictabl...
    Group
    Show

  • The Chrony package is installed

    System time should be synchronized between all systems in an environment. This is typically done by establishing an authoritative time server or se...
    Rule Medium Severity
    Show

  • Chrony Configure Pool and Server

    <code>Chrony</code> is a daemon which implements the Network Time Protocol (NTP). It is designed to synchronize system clocks across a variety of s...
    Rule Medium Severity
    Show

  • Ensure that chronyd is running under chrony user account

    chrony is a daemon which implements the Network Time Protocol (NTP). It is designed to synchronize system clocks across a variety of systems and us...
    Rule Medium Severity
    Show

  • Obsolete Services

    This section discusses a number of network-visible services which have historically caused problems for system security, and for which disabling or...
    Group
    Show

  • Uninstall rsync Package

    The rsyncd service can be used to synchronize files between systems over network links. The <code>rsync</code> package can be removed with the foll...
    Rule Medium Severity
    Show

  • Ensure rsyncd service is disabled

    The rsyncd service can be disabled with the following command: 
    $ sudo systemctl mask --now rsyncd.service
    Rule Medium Severity
    Show

  • Xinetd

    The <code>xinetd</code> service acts as a dedicated listener for some network services (mostly, obsolete ones) and can be used to provide access co...
    Group
    Show

  • Uninstall tcpd Package

    The tcpd package can be removed with the following command: 
    $ sudo zypper remove tcpd
    Rule Low Severity
    Show

  • Uninstall xinetd Package

    The xinetd package can be removed with the following command: 
    $ sudo zypper remove xinetd
    Rule Low Severity
    Show

  • Disable xinetd Service

    The xinetd service can be disabled with the following command: 
    $ sudo systemctl mask --now xinetd.service
    Rule Medium Severity
    Show

  • NIS

    The Network Information Service (NIS), also known as 'Yellow Pages' (YP), and its successor NIS+ have been made obsolete by Kerberos, LDAP, and oth...
    Group
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  • Remove NIS Client

    The Network Information Service (NIS), formerly known as Yellow Pages, is a client-server directory service protocol used to distribute system conf...
    Rule Unknown Severity
    Show

  • Uninstall ypserv Package

    The ypserv package can be removed with the following command: 
    $ sudo zypper remove ypserv
    Rule High Severity
    Show

  • Rlogin, Rsh, and Rexec

    The Berkeley r-commands are legacy services which allow cleartext remote access and have an insecure trust model.
    Group
    Show

  • Uninstall rsh Package

    The rsh package contains the client commands for the rsh services
    Rule Unknown Severity
    Show

  • Chat/Messaging Services

    The talk software makes it possible for users to send and receive messages across systems through a terminal session.
    Group
    Show

  • Uninstall talk Package

    The <code>talk</code> package contains the client program for the Internet talk protocol, which allows the user to chat with other users on differe...
    Rule Medium Severity
    Show

  • Telnet

    The telnet protocol does not provide confidentiality or integrity for information transmitted on the network. This includes authentication informat...
    Group
    Show

  • Uninstall telnet-server Package

    The telnet-server package can be removed with the following command: 
    $ sudo zypper remove telnet-server
    Rule High Severity
    Show

  • Remove telnet Clients

    The telnet client allows users to start connections to other systems via the telnet protocol.
    Rule Low Severity
    Show

  • Proxy Server

    A proxy server is a very desirable target for a potential adversary because much (or all) sensitive data for a given infrastructure may flow throug...
    Group
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  • Disable Squid if Possible

    If Squid was installed and activated, but the system does not need to act as a proxy server, then it should be disabled and removed.
    Group
    Show

  • Uninstall squid Package

    The squid package can be removed with the following command: 
     $ sudo zypper remove squid
    Rule Unknown Severity
    Show

  • Disable Squid

    The squid service can be disabled with the following command: 
    $ sudo systemctl mask --now squid.service
    Rule Unknown Severity
    Show

  • Samba(SMB) Microsoft Windows File Sharing Server

    When properly configured, the Samba service allows Linux systems to provide file and print sharing to Microsoft Windows systems. There are two soft...
    Group
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  • Disable Samba if Possible

    Even after the Samba server package has been installed, it will remain disabled. Do not enable this service unless it is absolutely necessary to pr...
    Group
    Show

  • Uninstall Samba Package

    The samba package can be removed with the following command: 
     $ sudo zypper remove samba
    Rule Unknown Severity
    Show

  • Disable Samba

    The smb service can be disabled with the following command: 
    $ sudo systemctl mask --now smb.service
    Rule Low Severity
    Show

  • SNMP Server

    The Simple Network Management Protocol allows administrators to monitor the state of network devices, including computers. Older versions of SNMP w...
    Group
    Show

  • Disable SNMP Server if Possible

    The system includes an SNMP daemon that allows for its remote monitoring, though it not installed by default. If it was installed and activated but...
    Group
    Show

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