Unspecified vulnerability in rlogind in the rlogin component in Mac OS X 10.4.11 and 10.5.5 applies hosts.equiv entries to root despite what is stated in documentation, which might allow remote attackers to bypass intended access restrictions.
https://exchange.xforce.ibmcloud.com/vulnerabilities/45785
http://www.vupen.com/english/advisories/2008/2780
http://www.securitytracker.com/id?1021028
http://www.securityfocus.com/bid/31708
http://www.securityfocus.com/bid/31681
http://support.apple.com/kb/HT3216
http://secunia.com/advisories/32222
http://lists.apple.com/archives/security-announce/2008/Oct/msg00001.html