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oval:org.secpod.oval:def:72982
The "nosuid" mount option causes the system to not execute "setuid" and "setgid" files with owner privileges. This option must be used for mounting any file system not containing approved "setuid" and "setguid" files. Executing files from untrusted file systems increases the opportunity for unprivil ... oval:org.secpod.oval:def:48996 Protect against unnecessary release of information. oval:org.secpod.oval:def:48887 action_mail_acct setting in /etc/audit/auditd.conf is set to a certain account oval:org.secpod.oval:def:72969 If any users' home directories do not exist, create them and make sure the respective user owns the directory. Users without an assigned home directory should be removed or assigned a home directory as appropriate. oval:org.secpod.oval:def:72958 SSH port forwarding is a mechanism in SSH for tunneling application ports from the client to the server, or servers to clients. It can be used for adding encryption to legacy applications, going through firewalls, and some system administrators and IT professionals use it for opening backdoors into ... oval:org.secpod.oval:def:72952 Avahi is a free zeroconf implementation, including a system for multicast DNS/DNS-SD service discovery. Avahi allows programs to publish and discover services and hosts running on a local network with no specific configuration. For example, a user can plug a computer into a network and Avahi automat ... oval:org.secpod.oval:def:48827 The RPM package telnet should be installed. oval:org.secpod.oval:def:48868 Syslog logs should be sent to a remote loghost oval:org.secpod.oval:def:72955 iptables allows configuration of the IPv4 tables in the linux kernel and the rules stored within them. Most firewall configuration utilities operate as a front end to iptables. oval:org.secpod.oval:def:48902 Record attempts to alter time through settimeofday. oval:org.secpod.oval:def:48935 The default umask for all users should be set correctly oval:org.secpod.oval:def:48973 Global IPv6 initialization should be disabled. oval:org.secpod.oval:def:48976 Specify Additional Remote NTP Servers (/etc/ntp.conf) should be configured appropriately. oval:org.secpod.oval:def:48738 The kernel module hfsplus should be disabled. oval:org.secpod.oval:def:48963 Disable Avahi Publishing (/etc/avahi/avahi-daemon.conf) should be configured appropriately. oval:org.secpod.oval:def:48789 Systems that are using the 64-bit x86 kernel package do not need to install the kernel-PAE package because the 64-bit x86 kernel already includes this support. However, if the system is 32-bit and also supports the PAE and NX features as determined in the previous section, the kernel-PAE package sho ... oval:org.secpod.oval:def:48731 This test makes sure that '/etc/gshadow' is setted appropriate permission. If the target file or directory has an extended ACL then it will fail the mode check. oval:org.secpod.oval:def:72991 The /var directory is used by daemons and other system services to temporarily store dynamic data. Some directories created by these processes may be world-writable. oval:org.secpod.oval:def:48929 The default umask for all users specified in /etc/login.defs oval:org.secpod.oval:def:48848 The kernel module tipc should be disabled. oval:org.secpod.oval:def:49015 The /etc/passwd file should be owned by the appropriate group. oval:org.secpod.oval:def:48711 The kernel module jffs2 should be disabled. oval:org.secpod.oval:def:48874 A warning banner for all FTP users should be enabled or disabled as appropriate oval:org.secpod.oval:def:48733 Configure Dovecot to Use the SSL Key file should be configured appropriately. oval:org.secpod.oval:def:48730 The '/etc/shadow' file should be owned by the appropriate group. oval:org.secpod.oval:def:48900 Record attempts to alter time through adjtimex. oval:org.secpod.oval:def:48907 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:72956 Configure SELINUX to be enabled at boot time and verify that it has not been overwritten by the grub boot parameters. Rationale: SELinux must be enabled at boot time in your grub configuration to ensure that the controls it provides are not overridden. oval:org.secpod.oval:def:72963 To protect a system from denial of service due to a large number of pending authentication connection attempts, use the rate limiting function of MaxStartups to protect availability of sshd logins and prevent overwhelming the daemon. oval:org.secpod.oval:def:48891 Restrict Access to Anonymous Users should be configured appropriately. oval:org.secpod.oval:def:48949 The RPM package screen should be installed. oval:org.secpod.oval:def:48842 The /etc/gshadow file should be owned by the appropriate group. oval:org.secpod.oval:def:48742 The RPM package ypserv should be removed. oval:org.secpod.oval:def:48986 The kernel runtime parameter "net.ipv4.tcp_syncookies" should be set to "1". oval:org.secpod.oval:def:48722 The SELinux policy should be set appropriately. oval:org.secpod.oval:def:48952 The RPM package dhcpd should be removed. oval:org.secpod.oval:def:48904 The RPM package httpd should be removed. oval:org.secpod.oval:def:48871 rsyslogd should reject remote messages oval:org.secpod.oval:def:48916 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48885 admin_space_left_action setting in /etc/audit/auditd.conf is set to a certain action oval:org.secpod.oval:def:48951 The kernel runtime parameter "net.ipv4.conf.all.log_martians" should be set to "1". oval:org.secpod.oval:def:48710 The password minimum length should be set appropriately. oval:org.secpod.oval:def:72953 The Common Unix Print System (CUPS) provides the ability to print to both local and network printers. A system running CUPS can also accept print jobs from remote systems and print them to local printers. It also provides a web based remote administration capability. oval:org.secpod.oval:def:48926 The .netrc files contain login information used to auto-login into FTP servers and reside in the user's home directory. Any .netrc files should be removed. oval:org.secpod.oval:def:48830 Only SSH protocol version 2 connections should be permitted. oval:org.secpod.oval:def:48852 The kernel module dccp should be disabled. oval:org.secpod.oval:def:48775 The RPM package rsh should be installed. oval:org.secpod.oval:def:48757 Plaintext authentication of mail clients should be enabled or disabled as appropriate. oval:org.secpod.oval:def:48912 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48826 The password hashing algorithm should be set correctly in /etc/libuser.conf. oval:org.secpod.oval:def:48718 All password hashes should be shadowed. oval:org.secpod.oval:def:49013 The password difok should meet minimum requirements using pam_cracklib oval:org.secpod.oval:def:48858 Ensure Insecure File Locking is Not Allowed (/etc/exports) should be configured appropriately. oval:org.secpod.oval:def:48769 The RPM package ypbind should be installed. oval:org.secpod.oval:def:48756 The RPM package telnet-server should be removed. oval:org.secpod.oval:def:72961 The MaxAuthTries parameter specifies the maximum number of authentication attempts permitted per connection. When the login failure count reaches half the number, error messages will be written to the syslog file detailing the login failure. oval:org.secpod.oval:def:48807 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:49001 Change the default policy to DROP (from ACCEPT) for the INPUT built-in chain (/etc/sysconfig/iptables). oval:org.secpod.oval:def:72964 When usePAM is set to yes, PAM runs through account and session types properly. This is important if you want to restrict access to services based off of IP, time or other factors of the account. Additionally, you can make sure users inherit certain environment variables on login or disallow access ... oval:org.secpod.oval:def:49011 The RPM package openldap-servers should be removed. oval:org.secpod.oval:def:48994 The root account is the only system account that should have a login shell. oval:org.secpod.oval:def:48917 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48851 The RPM package libreswan should be installed. oval:org.secpod.oval:def:48836 The maximum number of concurrent login sessions per user should meet minimum requirements. oval:org.secpod.oval:def:48982 A remote NTP Server for time synchronization should be specified (and dependencies are met) oval:org.secpod.oval:def:72954 Ensure LDAP Client is not installed oval:org.secpod.oval:def:48942 The kernel module usb-storage should be disabled. oval:org.secpod.oval:def:48931 Limit Users SSH Access should be configured appropriately. oval:org.secpod.oval:def:72988 Since the /var/tmp filesystem is only intended for temporary file storage, set this option to ensure that users cannot run executable binaries from /tmp oval:org.secpod.oval:def:48915 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48724 The /etc/passwd file should be owned by the appropriate user. oval:org.secpod.oval:def:48834 The kernel module sctp should be disabled. oval:org.secpod.oval:def:48715 The password lcredit should meet minimum requirements using pam_cracklib oval:org.secpod.oval:def:48938 The anacron service should be enabled or disabled as appropriate. oval:org.secpod.oval:def:72966 The Samba daemon allows system administrators to configure their Linux systems to share file systems and directories with Windows desktops. Samba will advertise the file systems and directories via the Server Message Block (SMB) protocol. Windows desktop users will be able to mount these directories ... oval:org.secpod.oval:def:48737 SSL capabilities should be enabled for the mail server. oval:org.secpod.oval:def:48872 Logging of vsftpd transactions should be enabled or disabled as appropriate oval:org.secpod.oval:def:48981 The kernel runtime parameter "net.ipv4.conf.default.rp_filter" should be set to "1". oval:org.secpod.oval:def:72948 Record events affecting the group, passwd (user IDs), shadow and gshadow (passwords) or /etc/security/opasswd (old passwords, based on remember parameter in the PAM configuration) files. The parameters in this section will watch the files to see if they have been opened for write or have had attribu ... oval:org.secpod.oval:def:48972 The RPM package sendmail should be removed. oval:org.secpod.oval:def:48773 The RPM package mcstrans should be installed. oval:org.secpod.oval:def:72967 The X Window System provides a Graphical User Interface (GUI) where users can have multiple windows in which to run programs and various add on. The X Windows system is typically used on workstations where users login, but not on servers where users typically do not login. oval:org.secpod.oval:def:72987 Since the /var/tmp partition is not intended to support devices, set this option to ensure that users cannot attempt to create block or character special devices. oval:org.secpod.oval:def:48739 SSH warning banner should be enabled (and dependencies are met). oval:org.secpod.oval:def:48804 Audit rules that detect the mounting of filesystems should be enabled. oval:org.secpod.oval:def:49000 The number of allowed failed logins should be set correctly. oval:org.secpod.oval:def:48918 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:72979 A firewall zone defines the trust level for a connection, interface or source address binding. This is a one to many relation, which means that a connection, interface or source can only be part of one zone, but a zone can be used for many network connections, interfaces and sources. oval:org.secpod.oval:def:72997 The contents of the /var/lib/update-motd/motd file are displayed to users after login and function as a message of the day for authenticated users. oval:org.secpod.oval:def:48913 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48999 The kernel module rds should be disabled. oval:org.secpod.oval:def:72978 TMOUT is an environmental setting that determines the timeout of a shell in seconds. oval:org.secpod.oval:def:48801 Audit actions taken by system administrators on the system. oval:org.secpod.oval:def:72983 Since the user partitions are not intended to support devices, set this option to ensure that users cannot attempt to create block or character special devices. oval:org.secpod.oval:def:48814 This test makes sure that '/etc/passwd' has proper permission. If the target file or directory has an extended ACL then it will fail the mode check. oval:org.secpod.oval:def:48892 Record attempts to alter time through /etc/localtime oval:org.secpod.oval:def:48875 max_log_file setting in /etc/audit/auditd.conf is set to at least a certain value oval:org.secpod.oval:def:48855 The SELinux state should be enforcing the local policy. oval:org.secpod.oval:def:48966 The kernel runtime parameter "net.ipv4.conf.default.secure_redirects" should be set to "0". oval:org.secpod.oval:def:48767 The RPM package talk-server should be installed. oval:org.secpod.oval:def:48752 Require samba clients which use smb.conf, such as smbclient, to use packet signing. A Samba client should only communicate with servers who can support SMB packet signing. oval:org.secpod.oval:def:48799 Core dumps for all users should be disabled oval:org.secpod.oval:def:48747 The RPM package squid should be removed. oval:org.secpod.oval:def:48997 The kernel runtime parameter "net.ipv6.conf.default.accept_ra" should be set to "0". oval:org.secpod.oval:def:72975 Setting the boot loader password will require that anyone rebooting the system must enter a password before being able to set command line boot parameters. oval:org.secpod.oval:def:48783 The kernel module udf should be enabled or disabled as appropriate. oval:org.secpod.oval:def:48726 The mod_security package installation should be configured appropriately. oval:org.secpod.oval:def:72962 To protect a system from denial of service due to a large number of concurrent sessions, use the rate limiting function of MaxSessions to protect availability of sshd logins and prevent overwhelming the daemon. oval:org.secpod.oval:def:48727 The audit rules should be configured to log information about kernel module loading and unloading. oval:org.secpod.oval:def:48925 Preventing direct root login to serial port interfaces helps ensure accountability for actions taken on the system using the root account. oval:org.secpod.oval:def:48890 space_left_action setting in /etc/audit/auditd.conf is set to a certain action oval:org.secpod.oval:def:48761 The RPM package net-snmp should be removed. oval:org.secpod.oval:def:48758 The RPM package tftp-server should be removed. oval:org.secpod.oval:def:48969 The Kernel Parameter for Accepting Source-Routed Packets By Default and All interfaces should be enabled or disabled as appropriate. oval:org.secpod.oval:def:48719 The dovecot service should be disabled if possible. oval:org.secpod.oval:def:48797 The daemon umask should be set as appropriate oval:org.secpod.oval:def:48806 Audit rules about the Unauthorized Access Attempts to Files (unsuccessful) are enabled oval:org.secpod.oval:def:72981 The "nodev" mount option causes the system to not interpret character or block special devices. Executing character or block special devices from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access. oval:org.secpod.oval:def:48843 The RPM package rsyslog should be installed. oval:org.secpod.oval:def:72996 It is critical to ensure that the /etc/passwd- file is protected from unauthorized access. Although it is protected by default, the file permissions could be changed either inadvertently or through malicious actions. oval:org.secpod.oval:def:48984 The kernel runtime parameter "net.ipv4.icmp_ignore_bogus_error_responses" should be set to "1". oval:org.secpod.oval:def:72957 SELinux gives that extra layer of security to the resources in the system. It provides the MAC (mandatory access control) as contrary to the DAC (Discretionary access control). oval:org.secpod.oval:def:48828 Limit the ciphers to those which are FIPS-approved and only use ciphers in counter (CTR) mode. oval:org.secpod.oval:def:48811 The number of allowed failed logins should be set correctly. oval:org.secpod.oval:def:48958 The kernel runtime parameter "net.ipv4.ip_forward" should be set to "0". oval:org.secpod.oval:def:72973 auditd is the userspace component to the Linux Auditing System. It's responsible for writing audit records to the disk oval:org.secpod.oval:def:48825 The gpgcheck option should be used to ensure that checking of an RPM package's signature always occurs prior to its installation. oval:org.secpod.oval:def:72971 Configure /etc/cron.allow and /etc/at.allow to allow specific users to use these services. If /etc/cron.allow or /etc/at.allow do not exist, then /etc/at.deny and /etc/cron.deny are checked. Any user not specifically defined in those files is allowed to use at and cron. By removing the files, only u ... oval:org.secpod.oval:def:48928 If inbound SSH access is not needed, the firewall should disallow or reject access to the SSH port (22). oval:org.secpod.oval:def:48820 Root login via SSH should be disabled (and dependencies are met) oval:org.secpod.oval:def:72984 Since the /tmp partition is not intended to support devices, set this option to ensure that users cannot attempt to create block or character special devices. oval:org.secpod.oval:def:72992 There are two important reasons to ensure that system logs are stored on a separate partition: protection against resource exhaustion (since logs can grow quite large) and protection of audit data. oval:org.secpod.oval:def:48939 The default umask for users of the bash shell oval:org.secpod.oval:def:48815 PermitUserEnvironment should be disabled oval:org.secpod.oval:def:48765 The squashfs Kernel Module should be enabled or disabled as appropriate. oval:org.secpod.oval:def:48888 The kernel module cramfs should be disabled. oval:org.secpod.oval:def:48983 Logging (/etc/rsyslog.conf) should be configured appropriately. oval:org.secpod.oval:def:72970 If a users recorded password change date is in the future then they could bypass any set password expiration. oval:org.secpod.oval:def:48920 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:72995 The /etc/shadow- file is used to store backup information about user accounts that is critical to the security of those accounts, such as the hashed password and other security information. oval:org.secpod.oval:def:48729 The password retry should meet minimum requirements using pam_cracklib oval:org.secpod.oval:def:48862 The 'rsyslog' to Accept Messages via TCP, if Acting As Log Server should be enabled or disabled as appropriate. oval:org.secpod.oval:def:49003 IP forwarding should be enabled or disabled as appropriate. oval:org.secpod.oval:def:48751 The RPM package rsh-server should be removed. oval:org.secpod.oval:def:48914 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48962 The kernel runtime parameter "net.ipv4.conf.default.send_redirects" should be set to "0". oval:org.secpod.oval:def:48898 Record attempts to alter time through clock_settime. oval:org.secpod.oval:def:48978 The kernel module bluetooth should be disabled. oval:org.secpod.oval:def:72960 Setting the LoginGraceTime parameter to a low number will minimize the risk of successful brute force attacks to the SSH server. It will also limit the number of concurrent unauthenticated connections While the recommended setting is 60 seconds (1 Minute), set the number based on site policy. oval:org.secpod.oval:def:48734 The kernel module hfs should be disabled. oval:org.secpod.oval:def:72951 The su command allows a user to run a command or shell as another user. The program has been superseded by sudo, which allows for more granular control over privileged access. Normally, the su command can be executed by any user. By uncommenting the pam_wheel.so statement in /etc/pam.d/su, the su co ... oval:org.secpod.oval:def:48805 Audit rules should capture information about session initiation. oval:org.secpod.oval:def:72999 The file is used to store backup information about groups that is critical to the security of those accounts, such as the hashed password and other security information. oval:org.secpod.oval:def:72959 SSH provides several logging levels with varying amounts of verbosity. DEBUG is specifically not recommended other than strictly for debugging SSH communications since it provides so much data that it is difficult to identify important security information. INFO level is the basic level that only re ... oval:org.secpod.oval:def:72965 Disable X11 forwarding unless there is an operational requirement to use X11 applications directly. There is a small risk that the remote X11 servers of users who are logged in via SSH with X11 forwarding could be compromised by other users on the X11 server. Note that even if X11 forwarding is disa ... oval:org.secpod.oval:def:48883 Configure auditd to use audispd plugin (/etc/audisp/plugins.d/syslog.conf) should be configured appropriately. oval:org.secpod.oval:def:48746 The system login banner text should be set correctly. oval:org.secpod.oval:def:48841 The SSH ClientAliveCountMax should be set to an appropriate value (and dependencies are met) oval:org.secpod.oval:def:48854 The /etc/shadow file should be owned by the appropriate user. oval:org.secpod.oval:def:48793 The kernel runtime parameter "fs.suid_dumpable" should be set to "0". oval:org.secpod.oval:def:48919 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48837 This test makes sure that '/etc/shadow' file permission is setted as appropriate. If the target file or directory has an extended ACL then it will fail the mode check. oval:org.secpod.oval:def:48829 The /etc/group file should be owned by the appropriate group. oval:org.secpod.oval:def:48755 The password dcredit should meet minimum requirements using pam_cracklib oval:org.secpod.oval:def:72968 Groups defined in the /etc/passwd file but not in the /etc/group file pose a threat to system security since group permissions are not properly managed. oval:org.secpod.oval:def:48743 Audit files deletion events. oval:org.secpod.oval:def:48819 The /etc/group file should be owned by the appropriate user. oval:org.secpod.oval:def:48878 The RPM package vsftpd should be removed. oval:org.secpod.oval:def:72985 Since the /tmp filesystem is only intended for temporary file storage, set this option to ensure that users cannot run executable binaries from /tmp oval:org.secpod.oval:def:48954 The kernel runtime parameter "net.ipv4.conf.all.accept_redirects" should be set to "0". oval:org.secpod.oval:def:48968 The kernel runtime parameter "net.ipv4.icmp_echo_ignore_broadcasts" should be set to "1". oval:org.secpod.oval:def:48884 File uploads via vsftpd should be enabled or disabled as appropriate oval:org.secpod.oval:def:48771 The RPM package tftp should be installed. oval:org.secpod.oval:def:48720 The password ocredit should meet minimum requirements using pam_cracklib oval:org.secpod.oval:def:72994 There are two important reasons to ensure that data gathered by is stored on a separate partition: protection against resource exhaustion (since the audit.log file can grow quite large) and protection of audit data. The audit daemon calculates how much free space is left and performs actions based ... oval:org.secpod.oval:def:72986 Since the /tmp filesystem is only intended for temporary file storage, set this option to ensure that users cannot run executable binaries from /tmp oval:org.secpod.oval:def:48736 The /etc/gshadow file should be owned by the appropriate user. oval:org.secpod.oval:def:48992 The password minclass should meet minimum requirements using pam_cracklib oval:org.secpod.oval:def:72977 Ensure default group for the root account is GID 0 oval:org.secpod.oval:def:48832 The password hashing algorithm should be set correctly in /etc/pam.d/system-auth. oval:org.secpod.oval:def:48911 Audit rules that detect changes to the system's mandatory access controls (SELinux) are enabled. oval:org.secpod.oval:def:48732 Dovecot plaintext authentication of clients should be enabled or disabled as necessary oval:org.secpod.oval:def:48870 Remote connections (SSH) from accounts with empty passwords should be disabled (and dependencies are met). oval:org.secpod.oval:def:48921 The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:49007 Change the default policy to DROP (from ACCEPT) for the INPUT built-in chain (/etc/sysconfig/ip6tables). oval:org.secpod.oval:def:48873 num_logs setting in /etc/audit/auditd.conf is set to at least a certain value oval:org.secpod.oval:def:48817 File permissions for '/etc/group' should be set correctly. oval:org.secpod.oval:def:72949 Monitor scope changes for system administrations. If the system has been properly configured to force system administrators to log in as themselves first and then use the sudo command to execute privileged commands, it is possible to monitor changes in scope. The file /etc/sudoers will be written t ... oval:org.secpod.oval:def:48988 The kernel runtime parameter "net.ipv6.conf.default.accept_redirects" should be set to "0". oval:org.secpod.oval:def:48795 The kernel runtime parameter "kernel.randomize_va_space" should be set to "2". oval:org.secpod.oval:def:48956 The kernel runtime parameter "net.ipv4.conf.all.secure_redirects" should be set to "0". oval:org.secpod.oval:def:48889 max_log_file_action setting in /etc/audit/auditd.conf is set to a certain action oval:org.secpod.oval:def:72989 Since the /var/tmp filesystem is only intended for temporary file storage, set this option to ensure that users cannot run executable binaries from /tmp oval:org.secpod.oval:def:48906 Record Events that Modify the System's Discretionary Access Controls - chmod. The changing of file permissions and attributes should be audited. oval:org.secpod.oval:def:48713 The password hashing algorithm should be set correctly in /etc/login.defs. oval:org.secpod.oval:def:48936 The number of allowed failed logins should be set correctly. oval:org.secpod.oval:def:48940 Disable Prelinking (/etc/sysconfig/prelink) should be configured appropriately. oval:org.secpod.oval:def:72980 The "noexec" mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files as they may be incompatible. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unau ... oval:org.secpod.oval:def:48721 The RPM package dovecot should be removed. oval:org.secpod.oval:def:48990 Require the use of TLS for ldap clients. oval:org.secpod.oval:def:72990 The /home directory is used to support disk storage needs of local users. oval:org.secpod.oval:def:48781 The RPM package talk should be installed. oval:org.secpod.oval:def:48861 SSH's cryptographic host-based authentication is more secure than .rhosts authentication. However, it is not recommended that hosts unilaterally trust one another, even within an organization. oval:org.secpod.oval:def:48882 The RPM package bind should be removed. oval:org.secpod.oval:def:48979 The kernel runtime parameter "net.ipv4.conf.all.rp_filter" should be set to "1". oval:org.secpod.oval:def:48759 Ensure Default Password Is Not Used (/etc/snmp/snmpd.conf) should be configured appropriately. oval:org.secpod.oval:def:48816 The password ucredit should meet minimum requirements using pam_cracklib oval:org.secpod.oval:def:48846 Specify UID and GID for Anonymous NFS Connections (/etc/exports) should be configured appropriately. oval:org.secpod.oval:def:48810 The RPM package xinetd should be removed. oval:org.secpod.oval:def:48894 The kernel module freevxfs should be disabled. oval:org.secpod.oval:def:48864 The rsyslog to Accept Messages via UDP, if Acting As Log Server should be enabled or disabled as appropriate. oval:org.secpod.oval:def:48778 The RPM package setroubleshoot should be installed. oval:org.secpod.oval:def:48802 Force a reboot to change audit rules is enabled oval:org.secpod.oval:def:48993 Postfix network listening should be disabled oval:org.secpod.oval:def:48971 The kernel runtime parameter "net.ipv4.conf.default.accept_redirects" should be set to "0". oval:org.secpod.oval:def:48895 The network environment should not be modified by anything other than administrator action. Any change to network parameters should be audited. oval:org.secpod.oval:def:48812 The passwords to remember should be set correctly. oval:org.secpod.oval:def:72993 There are two important reasons to ensure that data gathered by is stored on a separate partition: protection against resource exhaustion (since the audit.log file can grow quite large) and protection of audit data. The audit daemon calculates how much free space is left and performs actions based ... oval:org.secpod.oval:def:48964 The kernel runtime parameter "net.ipv4.conf.all.send_redirects" should be set to "0". oval:org.secpod.oval:def:49009 The RPM package aide should be installed. oval:org.secpod.oval:def:48943 Set Password to Maximum of Three Consecutive Repeating Characters should be configured appropriately. oval:org.secpod.oval:def:48822 Emulation of the rsh command through the ssh server should be disabled (and dependencies are met) oval:org.secpod.oval:def:72998 The contents of the /etc/issue.net file are displayed to users prior to login for remote connections from configured services. oval:org.secpod.oval:def:48933 The default umask for users of the csh shell oval:org.secpod.oval:def:49006 Verify that Shared Library Files Have Root Ownership (/lib, /lib64, /usr/lib or /usr/lib64) should be configured appropriately. oval:org.secpod.oval:def:48716 File permissions for /bin, /usr/bin, /usr/local/bin, /sbin, /usr/sbin and /usr/local/sbin should be set correctly. oval:org.secpod.oval:def:48818 Verify that Shared Library Files Have Restrictive Permissions (/lib, /lib64, /usr/lib or /usr/lib64) should be configured appropriately. oval:org.secpod.oval:def:48989 The SSH idle timeout interval should be set to an appropriate value. oval:org.secpod.oval:def:48823 The minimum password age policy should be set appropriately. oval:org.secpod.oval:def:48995 The password warning age should be set appropriately. oval:org.secpod.oval:def:48922 Preventing direct root login to virtual console devices helps ensure accountability for actions taken on the system using the root account. oval:org.secpod.oval:def:48777 The maximum password age policy should meet minimum requirements. oval:org.secpod.oval:def:48857 The logrotate (syslog rotater) service should be enabled. oval:org.secpod.oval:def:72976 chrony is a daemon which implements the Network Time Protocol (NTP) is designed to synchronize system clocks across a variety of systems and use a source that is highly accurate. More information on chrony can be found at http://chrony.tuxfamily.org/. chrony can be configured to be a client and/or a ... oval:org.secpod.oval:def:73049 Disable Automounting oval:org.secpod.oval:def:73047 Ensure only strong MAC algorithms are used oval:org.secpod.oval:def:73048 Ensure mounting of FAT filesystems is limited oval:org.secpod.oval:def:73045 Ensure rsyslog default file permissions configured oval:org.secpod.oval:def:73046 Ensure only strong Key Exchange algorithms are used oval:org.secpod.oval:def:73052 Ensure auditd service is enabled and running oval:org.secpod.oval:def:73050 Ensure use of privileged commands is collected oval:org.secpod.oval:def:73051 >Ensure mail transfer agent is configured for local-only mode oval:org.secpod.oval:def:73038 Ensure iptables in enabled and running oval:org.secpod.oval:def:73039 Ensure rsyslog Service is enabled and running oval:org.secpod.oval:def:73036 Ensure firewalld service is enabled and running oval:org.secpod.oval:def:73037 Ensure ip6tables in enabled and running oval:org.secpod.oval:def:73034 Ensure nftables is not installed or stopped and masked oval:org.secpod.oval:def:73035 Ensure cron daemon is enabled and running oval:org.secpod.oval:def:73043 Ensure ntp is configured oval:org.secpod.oval:def:73044 Ensure ntp is configured oval:org.secpod.oval:def:73041 Ensure rsync is not installed or the rsyncd service is masked oval:org.secpod.oval:def:73042 Ensure no users have .forward files oval:org.secpod.oval:def:73040 Ensure rpcbind is not installed or the rpcbind services are masked oval:org.secpod.oval:def:73009 An SSH public key is one of two files used in SSH public key authentication. In this authentication method, a public key is a key that can be used for verifying digital signatures generated using a corresponding private key. Only a public key that corresponds to a private key will be able to authent ... oval:org.secpod.oval:def:73007 Setting the permissions to read and write for root only prevents non-root users from seeing the boot parameters or changing them. Non-root users who read the boot parameters may be able to identify weaknesses in security upon boot and be able to exploit them. oval:org.secpod.oval:def:73008 It is important to ensure that log files have the correct permissions to ensure that sensitive data is archived and protected. Other/world should not have the ability to view this information. Group should not have the ability to modify this information. oval:org.secpod.oval:def:74457 Configure the loopback interface to accept traffic. Configure all other interfaces to deny traffic to the loopback network (127.0.0.0/8).Loopback traffic is generated between processes on machine and is typically critical to operation of the system. The loopback interface is the only place that loop ... oval:org.secpod.oval:def:73005 Granting write access to this directory for non-privileged users could provide them the means for gaining unauthorized elevated privileges. Granting read access to this directory could give an unprivileged user insight in how to gain elevated privileges or circumvent auditing controls. oval:org.secpod.oval:def:73006 Granting write access to this directory for non-privileged users could provide them the means for gaining unauthorized elevated privileges. Granting read access to this directory could give an unprivileged user insight in how to gain elevated privileges or circumvent auditing controls. oval:org.secpod.oval:def:73003 Granting write access to this directory for non-privileged users could provide them the means for gaining unauthorized elevated privileges. Granting read access to this directory could give an unprivileged user insight in how to gain elevated privileges or circumvent auditing controls. oval:org.secpod.oval:def:73004 Granting write access to this directory for non-privileged users could provide them the means for gaining unauthorized elevated privileges. Granting read access to this directory could give an unprivileged user insight in how to gain elevated privileges or circumvent auditing controls. oval:org.secpod.oval:def:73001 The /etc/crontab file is used by cron to control its own jobs. The commands in this item make sure that root is the user and group owner of the file and that only the owner can access the file. oval:org.secpod.oval:def:73002 The /etc/cron.weekly directory contains system cron jobs that need to run on a weekly basis. The files in this directory cannot be manipulated by the crontab command, but are instead edited by system administrators using a text editor. The commands below restrict read/write and search access to use ... oval:org.secpod.oval:def:73010 An SSH private key is one of two files used in SSH public key authentication. In this authentication method, The possession of the private key is proof of identity. Only a private key that corresponds to a public key will be able to authenticate successfully. The private keys need to be stored and ... oval:org.secpod.oval:def:73011 Ensure users' home directories permissions are 750 or more restrictive oval:org.secpod.oval:def:74443 Configure the loopback interface to accept traffic. Configure all other interfaces to deny traffic to the loopback network (::1).Loopback traffic is generated between processes on machine and is typically critical to operation of the system. The loopback interface is the only place that loopback net ... oval:org.secpod.oval:def:73000 The file is used to store backup information about groups that is critical to the security of those accounts, such as the hashed password and other security information. oval:org.secpod.oval:def:73029 Periodic checking of the filesystem integrity is needed to detect changes to the filesystem. oval:org.secpod.oval:def:73027 Ensure iptables packages are installed oval:org.secpod.oval:def:73028 Periodic checking of the filesystem integrity is needed to detect changes to the filesystem. oval:org.secpod.oval:def:73025 Ensure no duplicate group names account oval:org.secpod.oval:def:74478 The use of wireless networking can introduce many different attack vectors into the organization's network. Common attack vectors such as malicious association and ad hoc networks will allow an attacker to spoof a wireless access point (AP), allowing validated systems to connect to the malicious AP ... oval:org.secpod.oval:def:73026 nftables is a subsystem of the Linux kernel providing filtering and classification of network packets/datagrams/frames and is the successor to iptables. oval:org.secpod.oval:def:73023 Ensure root is the only UID 0 account oval:org.secpod.oval:def:73024 Ensure no duplicate user names account oval:org.secpod.oval:def:73032 Ensure inactive password lock is 30 days or less oval:org.secpod.oval:def:74485 Change the default policy to DROP (from ACCEPT) for the OUTPUT built-in chain (/etc/sysconfig/ip6tables). oval:org.secpod.oval:def:73033 Ensure nfs-utils is not installed or the nfs-server service is masked oval:org.secpod.oval:def:73030 Ensure journald is configured to write logfiles to persistent disk oval:org.secpod.oval:def:73031 Ensure journald is configured to send logs to rsyslog oval:org.secpod.oval:def:73018 Ensure sudo log file exists oval:org.secpod.oval:def:73019 sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. The invoking user's real (not effective) user ID is used to determine the user name with which to query the security policy. oval:org.secpod.oval:def:73016 Making global modifications to users' files without alerting the user community can result in unexpected outages and unhappy users. Therefore, it is recommended that a monitoring policy be established to report user dot file permissions and determine the action to be taken in accordance with site po ... oval:org.secpod.oval:def:73017 The .netrcfile presents a significant security risk since it stores passwords in unencrypted form. Even if FTP is disabled, user accounts may have brought over .netrcfiles from other systems which could pose a risk to those systems. oval:org.secpod.oval:def:73014 All accounts must have passwords or be locked to prevent the account from being used by an unauthorized user. oval:org.secpod.oval:def:73015 The shadow group allows system programs which require access the ability to read the /etc/shadow file. No users should be assigned to the shadow group. oval:org.secpod.oval:def:73012 While the complete removal of /etc/sshd/sshd_config files is recommended if any are required on the system secure permissions must be applied. oval:org.secpod.oval:def:74464 Change the default policy to DROP (from ACCEPT) for the OUTPUT built-in chain (/etc/sysconfig/iptables). oval:org.secpod.oval:def:73013 System time should be synchronized between all systems in an environment. This is typically done by establishing an authoritative time server or set of servers and having all systems synchronize their clocks to them. oval:org.secpod.oval:def:73021 Ensure root is the only UID 0 account oval:org.secpod.oval:def:73022 Ensure root is the only UID 0 account oval:org.secpod.oval:def:74471 Monitor login and logout events. The parameters below track changes to files associated with login/logout events. The file /var/log/faillog tracks failed events from login. The file /var/log/lastlog maintain records of the last time a user successfully logged in. The /var/run/failock directory maint ... oval:org.secpod.oval:def:73020 sudo can be configured to run only from a pseudo-pty oval:org.secpod.oval:def:87848 Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events t ... oval:org.secpod.oval:def:87849 Ensure iptables-services not installed with firewalld or nftables oval:org.secpod.oval:def:87846 Ensure no users have .rhosts files oval:org.secpod.oval:def:87847 The requirement for a password to boot into single-user mode should be configured correctly. oval:org.secpod.oval:def:87844 The system login banner text should be set correctly. oval:org.secpod.oval:def:87845 The contents of the /etc/issue file are displayed to users prior to login for local terminals. oval:org.secpod.oval:def:87843 The system login banner text should be set correctly for remote login users. oval:org.secpod.oval:def:74436 Change the default policy to DROP (from ACCEPT) for the FORWARD built-in chain (/etc/sysconfig/ip6tables). oval:org.secpod.oval:def:72972 Configure /etc/cron.allow and /etc/at.allow to allow specific users to use these services. If /etc/cron.allow or /etc/at.allow do not exist, then /etc/at.deny and /etc/cron.deny are checked. Any user not specifically defined in those files is allowed to use at and cron. By removing the files, only u ... oval:org.secpod.oval:def:72974 Configure grub or lilo so that processes that are capable of being audited can be audited even if they start up prior to auditd startup.Audit events need to be captured on processes that start up prior to auditd, so that potential malicious activity cannot go undetected. |
