Title

AIX must disable trivial file transfer protocol. (Cat I impact)

Discussion

Without auditing the enforcement of access restrictions against changes to the application configuration, it will be difficult to identify attempted attacks and an audit trail will not be available for forensic investigation for after-the-fact actions. Enforcement actions are the methods or mechanisms used to prevent unauthorized changes to configuration settings. Enforcement action methods may be as simple as denying access to a file based on the application of file permissions (access restriction). Audit items may consist of lists of actions blocked by access restrictions or changes identified after the fact.

Check Content

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

Fix Text

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

Additional Identifiers

Rule ID: SV-215334r1009554_rule

Vulnerability ID: V-215334

Group Title: SRG-OS-000365-GPOS-00152

Expert Comments

CCIs tied to check.

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