SUSE Linux Enterprise Server 15 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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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-000120-GPOS-00061
<GroupDescription></GroupDescription>Group -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The SUSE operating system must employ FIPS 140-2 approved cryptographic hashing algorithm for system authentication (login.defs).
<VulnDiscussion>Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be r...Rule Medium Severity -
SRG-OS-000125-GPOS-00065
<GroupDescription></GroupDescription>Group -
The SUSE operating system SSH daemon must be configured to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms.
<VulnDiscussion>Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote acce...Rule Medium Severity -
SRG-OS-000126-GPOS-00066
<GroupDescription></GroupDescription>Group -
The SUSE operating system SSH daemon must be configured with a timeout interval.
<VulnDiscussion>Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take c...Rule Medium Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
The sticky bit must be set on all SUSE operating system world-writable directories.
<VulnDiscussion>Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of infor...Rule Medium Severity -
SRG-OS-000142-GPOS-00071
<GroupDescription></GroupDescription>Group -
The SUSE operating system must be configured to use TCP syncookies.
<VulnDiscussion>Denial of Service (DoS) is a condition in which a resource is not available for legitimate users. When this occurs, the organ...Rule Medium Severity -
SRG-OS-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
The SUSE operating system for all network connections associated with SSH traffic must immediately terminate at the end of the session or after 10 minutes of inactivity.
<VulnDiscussion>Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...Rule Medium Severity -
SRG-OS-000185-GPOS-00079
<GroupDescription></GroupDescription>Group -
All SUSE operating system persistent disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at-rest protection.
<VulnDiscussion>SUSE operating systems handling data requiring data-at-rest protections must employ cryptographic mechanisms to prevent unaut...Rule High Severity -
SRG-OS-000205-GPOS-00083
<GroupDescription></GroupDescription>Group -
The SUSE operating system must generate error messages that provide information necessary for corrective actions without revealing information that could be exploited by adversaries.
<VulnDiscussion>Any operating system providing too much information in error messages risks compromising the data and security of the structu...Rule Medium Severity -
SRG-OS-000206-GPOS-00084
<GroupDescription></GroupDescription>Group -
The SUSE operating system must prevent unauthorized users from accessing system error messages.
<VulnDiscussion>Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an orga...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system library files must have mode 0755 or less permissive.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system library directories must have mode 0755 or less permissive.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system library files must be owned by root.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system library directories must be owned by root.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system library files must be group-owned by root.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system library directories must be group-owned by root.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have system commands set to a mode of 0755 or less permissive.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have directories that contain system commands set to a mode of 0755 or less permissive.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have system commands owned by root.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have directories that contain system commands owned by root.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have system commands group-owned by root or a system account.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have directories that contain system commands group-owned by root.
<VulnDiscussion>If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implem...Rule Medium Severity -
SRG-OS-000298-GPOS-00116
<GroupDescription></GroupDescription>Group -
The SUSE operating system must have a firewall system installed to immediately disconnect or disable remote access to the whole operating system.
<VulnDiscussion>Operating system remote access functionality must have the capability to immediately disconnect current users remotely access...Rule Medium Severity -
SRG-OS-000299-GPOS-00117
<GroupDescription></GroupDescription>Group -
The SUSE operating system wireless network adapters must be disabled unless approved and documented.
<VulnDiscussion>Without protection of communications with wireless peripherals, confidentiality and integrity may be compromised because unpr...Rule Medium Severity -
SRG-OS-000312-GPOS-00122
<GroupDescription></GroupDescription>Group -
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
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