Detections
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AIX7-00-003072 - The discard daemon must be disabled on AIX.
Information
The discard service is used as a debugging and measurement tool. It sets up a listening socket and ignores data that it receives. This is a /dev/null service and is obsolete. This can be used in DoS attacks and therefore, must be disabled to prevent attacks.Solution
In "/etc/inetd.conf", comment out the "discard" entries by running commands:# chsubserver -r inetd -C /etc/inetd.conf -d -v 'discard' -p 'tcp'
# chsubserver -r inetd -C /etc/inetd.conf -d -v 'discard' -p 'udp'
Restart inetd:
# refresh -s inetd
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_IBM_AIX_7-x_V3R3_STIG.zip
Item Details
Audit Name: DISA IBM AIX 7.x STIG v3r3
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-7a., CAT|II, CCI|CCI-000381, Rule-ID|SV-215377r958478_rule, STIG-ID|AIX7-00-003072, STIG-Legacy|SV-101481, STIG-Legacy|V-91383, Vuln-ID|V-215377
Plugin: Unix
Control ID: dad57ca864e927db5ffc97a1661d6d69ba684912e812053e800870bf0267333e