The IBM z/OS BPX.SMF resource must be properly configured.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-224000	TSS0-OS-000040	SV-224000r877841_rule		Medium

Description
Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Automated monitoring of remote access sessions allows organizations to detect cyberattacks and also ensure ongoing compliance with remote access policies by auditing connection activities of remote access capabilities, such as Remote Desktop Protocol (RDP), on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets).

Description

Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Automated monitoring of remote access sessions allows organizations to detect cyberattacks and also ensure ongoing compliance with remote access policies by auditing connection activities of remote access capabilities, such as Remote Desktop Protocol (RDP), on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets).

STIG	Date
IBM z/OS TSS Security Technical Implementation Guide	2024-02-22

Details

Check Text ( C-25673r868984_chk )
Review the FACILITY resource class for BPX.SMF. If the RACF rules are as follows, this is not a finding. BPX.SMF.119.94 - READ allowed for users running the ssh, sftp, or scp client commands. BPX.SMF.119.96 - READ allowed for users running the scp or sftp-server server commands. BPX.SMF.119.97 - READ allowed for users running the scp or sftp client commands. The following profile grants the permitted users the authority to write or test for any SMF record being recorded. Access should be permitted as follows: BPX.SMF - READ access only when documented and justified in Site Security Plan. Documentation should include a reason why a more specific profile is not acceptable.

Check Text ( C-25673r868984_chk )

Review the FACILITY resource class for BPX.SMF.

If the RACF rules are as follows, this is not a finding.

BPX.SMF.119.94 - READ allowed for users running the ssh, sftp, or scp client commands.
BPX.SMF.119.96 - READ allowed for users running the scp or sftp-server server commands.
BPX.SMF.119.97 - READ allowed for users running the scp or sftp client commands.

The following profile grants the permitted users the authority to write or test for any SMF record being recorded. Access should be permitted as follows:
BPX.SMF - READ access only when documented and justified in Site Security Plan. Documentation should include a reason why a more specific profile is not acceptable.

Fix Text (F-25661r868985_fix)
Configure Facility resource class for BPX.SMF as follows: BPX.SMF.119.94 - READ allowed for users running the ssh, sftp, or scp client commands. BPX.SMF.119.96 - READ allowed for users running the scp or sftp-server server commands. BPX.SMF.119.97 - READ allowed for users running the scp or sftp client commands. The following profile grants the permitted users the authority to write or test for any SMF record being recorded. Access should be permitted as follows: BPX.SMF - READ access only when documented and justified in Site Security Plan. Documentation should include a reason why a more specific profile is not acceptable.

Fix Text (F-25661r868985_fix)

Configure Facility resource class for BPX.SMF as follows:

BPX.SMF.119.94 - READ allowed for users running the ssh, sftp, or scp client commands.
BPX.SMF.119.96 - READ allowed for users running the scp or sftp-server server commands.
BPX.SMF.119.97 - READ allowed for users running the scp or sftp client commands.

The following profile grants the permitted users the authority to write or test for any SMF record being recorded. Access should be permitted as follows:
BPX.SMF - READ access only when documented and justified in Site Security Plan. Documentation should include a reason why a more specific profile is not acceptable.