Title

The sendmail server must have the debug feature disabled on AIX systems. (Cat II impact)

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.

Additional Identifiers

Rule ID: SV-215414r991589_rule

Vulnerability ID: V-215414

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

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