IBM z/OS ACF2 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
IBM z/OS Started tasks for the Base TCP/IP component must be defined in accordance with security requirements.
<VulnDiscussion>To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to pre...Rule Medium Severity -
SRG-OS-000279-GPOS-00109
<GroupDescription></GroupDescription>Group -
IBM z/OS PROFILE.TCPIP configuration INACTIVITY statement must be configured to 900 seconds.
<VulnDiscussion>Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...Rule Medium Severity -
SRG-OS-000392-GPOS-00172
<GroupDescription></GroupDescription>Group -
IBM z/OS SMF recording options for the TN3270 Telnet Server must be properly specified.
<VulnDiscussion>If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing an...Rule Medium Severity -
SRG-OS-000033-GPOS-00014
<GroupDescription></GroupDescription>Group -
IBM z/OS SSL encryption options for the TN3270 Telnet Server must be specified properly for each statement that defines a SECUREPORT or within the TELNETGLOBALS.
<VulnDiscussion>Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
IBM z/OS TN3270 Telnet Server configuration statement MSG10 text must have the Standard Mandatory DoD Notice and Consent Banner.
<VulnDiscussion>A logon banner can be used to inform users about the environment during the initial logon. In the DISA environment, logon ban...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
IBM z/OS VTAM session setup controls for the TN3270 Telnet Server must be properly specified.
<VulnDiscussion>Configuring the operating system to implement organization-wide security implementation guides and security checklists ensure...Rule Medium Severity -
SRG-OS-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
IBM z/OS PROFILE.TCPIP configuration for the TN3270 Telnet Server must have INACTIVE statement properly specified.
<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-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS TSOAUTH resources must be restricted to authorized users.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS UNIX SUPERUSER resource must be protected in accordance with guidelines.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
IBM z/OS UNIX security parameters in etc/profile must be properly specified.
<VulnDiscussion>Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the sys...Rule Medium Severity
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