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V-215414

CAT II (Medium)

The sendmail server must have the debug feature disabled on AIX systems.

Rule ID

SV-215414r991589_rule

STIG

IBM AIX 7.x Security Technical Implementation Guide

Version

V3R2

CCIs

CCI-000366

Discussion

Debug mode is a feature present in older versions of Sendmail which, if not disabled, may allow an attacker to gain access to a system through the Sendmail service.

Check Content

Check the version of "sendmail" installed on the system using: 
# echo \$Z | /usr/sbin/sendmail -bt -d0 

The above command should yield the following output:
Version AIX7.2/8.14.4
 Compiled with: DNSMAP LDAPMAP LDAP_REFERRALS LOG MAP_REGEX MATCHGECOS
                MILTER MIME7TO8 MIME8TO7 NAMED_BIND NDBM NETINET NETINET6
                NETUNIX NEWDB NIS NISPLUS PIPELINING SCANF USERDB USE_LDAP_INIT
                USE_TTYPATH XDEBUG

If the "sendmail" reported version is less than "8.6", this is a finding.

Fix Text

Obtain and install a more recent version of "Sendmail", which does not implement the DEBUG feature.