SLES 12 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000074-GPOS-00042
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not have the vsftpd package installed if not required for operational support.
<VulnDiscussion>It is detrimental for SUSE operating systems to provide, or install by default, functionality exceeding requirements or missi...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not forward Internet Protocol version 6 (IPv6) source-routed packets by default.
<VulnDiscussion>Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than c...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must prevent Internet Protocol version 6 (IPv6) Internet Control Message Protocol (ICMP) redirect messages from being accepted.
<VulnDiscussion>ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not be performing Internet Protocol version 6 (IPv6) packet forwarding unless the system is a router.
<VulnDiscussion>Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this s...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not be performing Internet Protocol version 6 (IPv6) packet forwarding by default unless the system is a router.
<VulnDiscussion>Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this s...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must specify the default "include" directory for the /etc/sudoers file.
<VulnDiscussion>The "sudo" command allows authorized users to run programs (including shells) as other users, system users, and root. The "/e...Rule Medium Severity -
SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not be configured to bypass password requirements for privilege escalation.
<VulnDiscussion>Without re-authentication, users may access resources or perform tasks for which they do not have authorization. When opera...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must not have accounts configured with blank or null passwords.
<VulnDiscussion>If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with ...Rule High Severity -
SRG-OS-000037-GPOS-00015
<GroupDescription></GroupDescription>Group -
The SUSE operating system must generate audit records for all uses of the unlink, unlinkat, rename, renameat and rmdir syscalls.
<VulnDiscussion>Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...Rule Medium Severity -
SRG-OS-000250-GPOS-00093
<GroupDescription></GroupDescription>Group -
The SUSE operating system SSH server must be configured to use only FIPS-validated key exchange algorithms.
<VulnDiscussion>Without cryptographic integrity protections provided by FIPS-validated cryptographic algorithms, information can be viewed an...Rule Medium Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
The SUSE operating system must restrict access to the kernel message buffer.
<VulnDiscussion>Restricting access to the kernel message buffer limits access only to root. This prevents attackers from gaining additional s...Rule Low Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
The SUSE operating system must use a file integrity tool to verify correct operation of all security functions.
<VulnDiscussion>Without verification of the security functions, security functions may not operate correctly, and the failure may go unnotice...Rule Medium Severity -
SRG-OS-000123-GPOS-00064
<GroupDescription></GroupDescription>Group -
The SUSE operating system must automatically expire temporary accounts within 72 hours.
<VulnDiscussion>Temporary accounts are privileged or nonprivileged accounts that are established during pressing circumstances, such as new s...Rule Medium Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
The SUSE operating system must be configured to allow sending email notifications of unauthorized configuration changes to designated personnel.
<VulnDiscussion>Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...Rule Medium Severity
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