The NFS server in Sun Solaris 10, and OpenSolaris before snv_111, does not properly implement the AUTH_NONE (aka sec=none) security mode in combination with other security modes, which allows remote attackers to bypass intended access restrictions and read or modify files, as demonstrated by a combination of the AUTH_NONE and AUTH_SYS security modes.
https://exchange.xforce.ibmcloud.com/vulnerabilities/49170
http://www.vupen.com/english/advisories/2009/0798
http://www.vupen.com/english/advisories/2009/0658
http://support.avaya.com/elmodocs2/security/ASA-2009-093.htm
http://sunsolve.sun.com/search/document.do?assetkey=1-66-253588-1
http://sunsolve.sun.com/search/document.do?assetkey=1-21-139462-02-1
http://securitytracker.com/id?1021833
http://secunia.com/advisories/34429