Extproc in Oracle 9i and 10g does not require authentication to load a library or execute a function, which allows local users to execute arbitrary commands as the Oracle user.

Multiple SQL injection vulnerabilities in PL/SQL procedures that run with definer rights in Oracle 9i and 10g allow remote attackers to execute arbitrary SQL commands and gain privileges via (1) DBMS_EXPORT_EXTENSION, (2) WK_ACL.GET_ACL, (3) WK_ACL.STORE_ACL, (4) WK_ADM.COMPLETE_ACL_SNAPSHOT, (5) WK_ACL.DELETE_ACLS_WITH_STATEMENT, or (6) DRILOAD.VALIDATE_STMT.