Unspecified vulnerability in the Authentication component for Oracle Database 10.1.0.5 and 10.2.0.3 has unknown impact and attack vectors, aka DB05. NOTE: as of 20070424, Oracle has not disputed reliable claims that this issue allows remote authenticated users to bypass the AUTH_ALTER_SESSION security policies via a logon trigger ("AFTER LOGON ON DATABASE" trigger directive), a related issue to CVE-2006-0547.
http://www.vupen.com/english/advisories/2007/1426
http://www.us-cert.gov/cas/techalerts/TA07-108A.html
http://www.securitytracker.com/id?1017927
http://www.securityfocus.com/bid/23532
http://www.securityfocus.com/archive/1/466329/100/200/threaded
http://www.securityfocus.com/archive/1/466151/100/0/threaded
http://www.red-database-security.com/advisory/oracle_cpu_apr_2007.html
http://www.red-database-security.com/advisory/bypass_oracle_logon_trigger.html
http://www.oracle.com/technetwork/topics/security/cpuapr2007-090632.html
http://www.ngssoftware.com/research/papers/NGSSoftware-OracleCPUAPR2007.pdf
http://www.integrigy.com/security-resources/analysis/Integrigy_Oracle_CPU_April_2007_Analysis.pdf