Solaris 9, when configured as a Kerberos client with patch 112908-12 or 115168-03 and using pam_krb5 as an "auth" module with the debug feature enabled, records passwords in plaintext, which could allow local users to gain other user's passwords by reading log files.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A255
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2065
https://exchange.xforce.ibmcloud.com/vulnerabilities/16450
http://www.securityfocus.com/bid/10606
http://www.kb.cert.org/vuls/id/523710
http://www.ciac.org/ciac/bulletins/o-172.shtml
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101519-1
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/57587