II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
CA VM:Secure must have a security group for Security Administrators only.
<VulnDiscussion>An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform...Rule Medium Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
The IBM z/VM SYSTEM CONFIG file must be configured to clear TDISK on IPL.
<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 IBM z/VM TCP/IP FOREIGNIPCONLIMIT statement must be properly configured.
<VulnDiscussion>DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot ac...Rule Medium Severity -
SRG-OS-000142-GPOS-00071
<GroupDescription></GroupDescription>Group -
The IBM z/VM TCP/IP PERSISTCONNECTIONLIMIT statement must be properly configured.
<VulnDiscussion>DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot ac...Rule Medium Severity -
SRG-OS-000142-GPOS-00071
<GroupDescription></GroupDescription>Group -
The IBM z/VM TCP/IP PENDINGCONNECTIONLIMIT statement must be properly configured.
<VulnDiscussion>DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot ac...Rule Medium Severity -
SRG-OS-000185-GPOS-00079
<GroupDescription></GroupDescription>Group -
IBM z/VM tapes must use Tape Encryption.
<VulnDiscussion>Information at rest refers to the state of information when it is located on a secondary storage device (e.g., disk drive and...Rule Medium Severity -
SRG-OS-000228-GPOS-00088
<GroupDescription></GroupDescription>Group -
The IBM z/VM TCP/IP must be configured to display the mandatory DoD Notice and Consent banner before granting access to the system.
<VulnDiscussion>Display of a standardized and approved use notification before granting access to the publicly accessible operating system en...Rule Medium Severity -
SRG-OS-000254-GPOS-00095
<GroupDescription></GroupDescription>Group -
The IBM z/VM JOURNALING statement must be coded on the configuration file.
<VulnDiscussion>If auditing is enabled late in the start-up process, the actions of some start-up processes may not be audited. Some audit sy...Rule Medium Severity -
SRG-OS-000256-GPOS-00097
<GroupDescription></GroupDescription>Group -
CA VM:Secure product SECURITY CONFIG file must be restricted to appropriate personnel.
<VulnDiscussion>Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...Rule Medium Severity -
SRG-OS-000257-GPOS-00098
<GroupDescription></GroupDescription>Group -
The IBM z/VM AUDT and Journal Mini Disks must be restricted to the appropriate system administrators.
<VulnDiscussion>Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...Rule Medium Severity -
SRG-OS-000123-GPOS-00064
<GroupDescription></GroupDescription>Group -
IBM z/VM must remove or disable emergency accounts after the crisis is resolved or 72 hours.
<VulnDiscussion>Emergency accounts are privileged accounts that are established in response to crisis situations where the need for rapid acc...Rule Medium Severity -
SRG-OS-000259-GPOS-00100
<GroupDescription></GroupDescription>Group -
The IBM z/VM must restrict link access to the disk on which system software resides.
<VulnDiscussion>If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented...Rule Medium Severity -
SRG-OS-000362-GPOS-00149
<GroupDescription></GroupDescription>Group -
The IBM z/VM Privilege command class A and Class B must be properly assigned.
<VulnDiscussion>Allowing regular users to install software, without explicit privileges, creates the risk that untested or potentially malici...Rule Medium Severity -
SRG-OS-000364-GPOS-00151
<GroupDescription></GroupDescription>Group -
CA VM:Secure AUTHORIZ CONFIG file must be properly configured.
<VulnDiscussion>Failure to provide logical access restrictions associated with changes to system configuration may have significant effects o...Rule Medium Severity -
SRG-OS-000341-GPOS-00132
<GroupDescription></GroupDescription>Group -
The IBM z/VM journal minidisk space allocation must be large enough for one weeks worth of audit records.
<VulnDiscussion>In order to ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems n...Rule Medium Severity -
SRG-OS-000342-GPOS-00133
<GroupDescription></GroupDescription>Group -
CA VM:Secure product audit records must offload audit records to a different system or media.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-OS-000479-GPOS-00224
<GroupDescription></GroupDescription>Group -
CA VM:Secure product audit records must be offloaded on a weekly basis.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-OS-000379-GPOS-00164
<GroupDescription></GroupDescription>Group -
The IBM z/VM Portmapper server virtual machine userID must be included in the AUTOLOG statement of the TCP/IP server configuration file.
<VulnDiscussion>Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. B...Rule Medium Severity -
SRG-OS-000312-GPOS-00124
<GroupDescription></GroupDescription>Group -
CA VM:Secure product MANAGE command must be restricted to system administrators.
<VulnDiscussion>Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have di...Rule Medium Severity -
SRG-OS-000326-GPOS-00126
<GroupDescription></GroupDescription>Group -
The CA VM:Secure LOGONBY command must be restricted to system administrators.
<VulnDiscussion>In certain situations, software applications/programs need to execute with elevated privileges to perform required functions....Rule Medium Severity -
SRG-OS-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
The IBM z/VM CP Privilege Class A, B, and D must be restricted to appropriate system operators.
<VulnDiscussion>Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or proce...Rule Medium Severity -
SRG-OS-000329-GPOS-00128
<GroupDescription></GroupDescription>Group -
The IBM z/VM JOURNALING statement must be properly configured.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity -
SRG-OS-000425-GPOS-00189
<GroupDescription></GroupDescription>Group -
The IBM z/VM TCP/IP SECUREDATA option for FTP must be set to REQUIRED.
<VulnDiscussion>Information can be either unintentionally or maliciously disclosed or modified during preparation for transmission, for examp...Rule Medium Severity -
SRG-OS-000297-GPOS-00115
<GroupDescription></GroupDescription>Group -
IBM z/VM TCP/IP config file INTERNALCLIENTPARMS statement must be properly configured.
<VulnDiscussion>Remote access services, such as those providing remote access to network devices and information systems, which lack automate...Rule Medium Severity -
SRG-OS-000425-GPOS-00189
<GroupDescription></GroupDescription>Group -
All IBM z/VM TCP/IP servers must be configured for SSL/TLS connection.
<VulnDiscussion>Information can be either unintentionally or maliciously disclosed or modified during preparation for transmission, for examp...Rule Medium Severity
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