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Check: AIX7-00-003105

IBM AIX 7.x STIG: AIX7-00-003105 (in versions v2 r9 through v1 r1)

Title

The rwalld daemon must be disabled on AIX. (Cat II impact)

Discussion

The rwalld service allows remote users to broadcast system wide messages. The service runs as root and should be disabled unless absolutely necessary to prevent attacks.

Check Content

From the command prompt, execute the following command: # grep "^rwalld[[:blank:]]" /etc/inetd.conf If there is any output from the command, this is a finding.

Fix Text

In "/etc/inetd.conf", comment out the "rwalld" entry by running command: # chsubserver -r inetd -C /etc/inetd.conf -d -v 'rwalld' -p 'udp' Restart inetd: # refresh -s inetd

Additional Identifiers

Rule ID: SV-215406r508663_rule

Vulnerability ID: V-215406

Group Title: SRG-OS-000095-GPOS-00049

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000381	The organization configures the information system to provide only essential capabilities.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
CM-7	Least Functionality