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Guide to the Secure Configuration of SUSE Linux Enterprise 15

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Docker Service

    The docker service is necessary to create containers, which are self-sufficient and self-contained applications using the resource isolation fe...
    Group
    Show

  • Application Whitelisting Daemon

    Fapolicyd (File Access Policy Daemon) implements application whitelisting to decide file access rights. Applications that are known via a reputatio...
    Group
    Show

  • fapolicyd Must be Configured to Limit Access to Users Home Folders

    fapolicyd needs be configured so that users cannot give access to their home folders to other users.
    Rule Medium Severity
    Show

  • FTP Server

    FTP is a common method for allowing remote access to files. Like telnet, the FTP protocol is unencrypted, which means that passwords and other data...
    Group
    Show

  • Disable vsftpd if Possible

    To minimize attack surface, disable vsftpd if at all possible.
    Group
    Show

  • Uninstall vsftpd Package

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

  • Disable vsftpd Service

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

  • Configure vsftpd to Provide FTP Service if Necessary

    The primary vsftpd configuration file is /etc/vsftpd.conf, if that file exists, or /etc/vsftpd/vsftpd.conf if it does not.
    Group
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  • Configure Firewalls to Protect the FTP Server

    By default, <code>iptables</code> blocks access to the ports used by the web server. To configure <code>iptables</code> to allow port 21 traffic,...
    Rule Unknown Severity
    Show

  • Restrict the Set of Users Allowed to Access FTP

    This section describes how to disable non-anonymous (password-based) FTP logins, or, if it is not possible to do this entirely due to legacy applic...
    Group
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  • Limit Users Allowed FTP Access if Necessary

    If there is a mission-critical reason for users to access their accounts via the insecure FTP protocol, limit the set of users who are allowed this...
    Rule Unknown Severity
    Show

  • Use vsftpd to Provide FTP Service if Necessary

    If your use-case requires FTP service, install and set-up vsftpd to provide it.
    Group
    Show

  • Web Server

    The web server is responsible for providing access to content via the HTTP protocol. Web servers represent a significant security risk because: <br...
    Group
    Show

  • Disable Apache if Possible

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

  • Uninstall httpd Package

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

  • Disable httpd Service

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

  • Disable NGINX if Possible

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

  • Install Apache if Necessary

    If <code>httpd</code> was not installed and activated, but the system needs to act as a web server, then it should be installed on the system. Foll...
    Group
    Show

  • Verify Ownership on SSH Server Public *.pub Key Files

    SSH server public keys, files that match the /etc/ssh/*.pub glob, must be owned by root user.
    Rule Medium Severity
    Show

  • Confirm Minimal Built-in Modules Installed

    The default <code>httpd</code> installation minimizes the number of modules that are compiled directly into the binary (<code>core prefork http_cor...
    Group
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