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All IBM z/VM TCP/IP servers must be configured for SSL/TLS connection.


Overview

Finding ID Version Rule ID IA Controls Severity
V-237947 IBMZ-VM-001070 SV-237947r859023_rule Medium
Description
Information can be either unintentionally or maliciously disclosed or modified during preparation for transmission, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When transmitting data, operating systems need to support transmission protection mechanisms such as TLS, SSL VPNs, or IPsec.
STIG Date
IBM zVM Using CA VM:Secure Security Technical Implementation Guide 2022-08-31

Details

Check Text ( C-41157r859021_chk )
Determine SSL/TLS capability.

Examine the TCP/IP config file.

If the "SSLSERVERID" statement identifies at least one userID for SSL server, this is not a finding.
Fix Text (F-41116r859022_fix)
Configure the "SSLSERVERID" statement to force auto logging of an SSL server before all other servers in the "AUTOLOG" list.