TMAegis
More rules for db2-zos

TMA-DB2-ZOS-2.1.5

Secure remote connections by using TCP/IP Network Access control with the RACF SERVAUTH class

MediumLevel 1Manual reviewdb2-zos

Description

The z/OS communications server TCP/IP network access control provides the ability to control access to Db2 from a range of IP addresses that are defined as a security zone. The TCP/IP network access control with RACF SERVAUTH class protects access to Db2 by allowing users to connect only from approved part of the network.

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

1.Review your TCP/IP profile data set for the NETACCESS statement definition and determine if the security zones are defined correctly. You can use the NETSTAT CONFIG (TSO) or netstat -x f (USS) command to display the current TCP/IP configuration, including the NETACCESS rules. Both of the commands in the example below display the current configuration for the TCP/IP stack named TCPIP2: (TSO) NETSTAT CONFIG TCP TCPIP2 (USS) netstat -f -p tcpip2 2.Issue the RACF RLIST command to display the list of users or groups that have access to the corresponding ... (full steps: CIS section 2.1.5)

How it is fixed

Fix method: Guidance or infrastructure patch

1. Configure the TCP/IP network access control by using the NETACCESS statement in your TCP/IP profile. 2. Permit users access to the corresponding profile for the TCP network security zone access in the RACF SERVAUTH class based on the rules of your organization.

Properties

Operating systems
Any
Tags
db2-zosnetwork
Reference
CIS IBM Db2 13 for z/OS Benchmark v1.0.0 - 2.1.5 Secure remote connections by using TCP/IP Network Access control with the RACF SERVAUTH class