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Sunday, May 11, 2014

Oracle Default Passwords

Oracle Database 11g now offers a way to quickly identify users with default passwords, implemented in the rather ludicrously simple way of checking a single data dictionary view: DBA_USERS_WITH_DEFPWD. (Note that DBA_ is a standard prefix; it does not contain only DBA users with default passwords.) You can identify these users by issuing:

select *
from dba_users_with_defpwd

And here is the output:


USERNAME
------------------------------
DIP
MDSYS
WK_TEST
CTXSYS
OLAPSYS
OUTLN
EXFSYS
SCOTT
MDDATA
ORDPLUGINS
ORDSYS
XDB
LBACSYS
SI_INFORMTN_SCHEMA
WMSYS

You can see SCOTT listed above, because his password is TIGER, the default one. Change it with:

SQL> alter user scott identified by tiger1;

User altered.

Now if you check the view:

SQL> select * from dba_users_with_defpwd;

You won't see SCOTT on the list anymore. It's that simple!


- Script to check for Default Passwords being used for some common usernames. (8.1.7 - 11.1.0.7)

select username "User(s) with Default Password!", account_status "Status"
 from dba_users
 where password in
('E066D214D5421CCC',  -- dbsnmp
 '24ABAB8B06281B4C',  -- ctxsys
 '72979A94BAD2AF80',  -- mdsys
 '9AAEB2214DCC9A31',  -- mdsys
 'C252E8FA117AF049',  -- odm
 'A7A32CD03D3CE8D5',  -- odm_mtr
 '88A2B2C183431F00',  -- ordplugins
 '7EFA02EC7EA6B86F',  -- ordsys
 '9B616F5489F90AD7',  -- ordcommon
 '4A3BA55E08595C81',  -- outln
 'F894844C34402B67',  -- scott
 '3F9FBD883D787341',  -- wk_proxy
 '79DF7A1BD138CF11',  -- wk_sys
 '7C9BA362F8314299',  -- wmsys
 '88D8364765FCE6AF',  -- xdb
 'F9DA8977092B7B81',  -- tracesvr
 '9300C0977D7DC75E',  -- oas_public
 'A97282CE3D94E29E',  -- websys
 'AC9700FD3F1410EB',  -- lbacsys
 'E7B5D92911C831E1',  -- rman
 'AC98877DE1297365',  -- perfstat
 '66F4EF5650C20355',  -- exfsys
 '84B8CBCA4D477FA3',  -- si_informtn_schema
 'D4C5016086B2DC6A',  -- sys
 '5638228DAF52805F',  -- sys
 'D4DF7931AB130E37')  -- system
/                     









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