The NFS daemon (aka nfsd) in Sun Solaris 10 and OpenSolaris before snv_106, when NFSv3 is used, does not properly implement combinations of security modes, which allows remote attackers to bypass intended access restrictions and read or modify files, as demonstrated by a combination of the sec=sys and sec=krb5 security modes, related to modes that “override each other.”
osvdb.org/52560
secunia.com/advisories/34225
secunia.com/advisories/34435
securitytracker.com/id?1021832
sunsolve.sun.com/search/document.do?assetkey=1-21-139462-02-1
sunsolve.sun.com/search/document.do?assetkey=1-66-250306-1
support.avaya.com/elmodocs2/security/ASA-2009-096.htm
www.securityfocus.com/bid/34062
www.vupen.com/english/advisories/2009/0657
www.vupen.com/english/advisories/2009/0814
exchange.xforce.ibmcloud.com/vulnerabilities/49171