Re: [Full-disclosure] Oracle 10g R2 and, probably, all previous versions

Doh! Busted right back! Now I get the same results
(assuming I grant the user alter session of course -
if the user doesn't have alter session I get the
privilege error).

Thanks Raj!

--- rjamya <rjamya@xxxxxxxxx> wrote:

Russell,

you have a syntax error, you need a comma before
LEVEL.

Raj

On 7/28/06, Russell Lowenthal <perpetualv@xxxxxxxxx>
wrote:
Interesting comment. So if I understand what you
are
saying I should be able to create a user:

SQL> create user nottoosmart identified by
d0ntkn0wmuch;

User created.

SQL> grant create session to nottoosmart;

Grant succeeded.

SQL> connect nottoosmart/d0ntkn0wmuch
Connected.
SQL> alter session set events '10046 trace name
context forever level 16';
ERROR:
ORA-01031: insufficient privileges

Hmm - would you mind posting your EXACT test case?
I
ran this against a 9.2.0.7, 10.2.0.1 and 10.2.0.2
database and seem to get different results then
you
are seeing. Just for the heck of it I went ahead
and
granted the user alter session privileges:

SQL> conn / as sysdba
Connected.
SQL> grant alter session to nottoosmart;

Grant succeeded.

SQL> connect nottoosmart/d0ntkn0wmuch
Connected.
SQL> alter session set events '10046 trace name
context forever level 16';
ERROR:
ORA-02194: event specification syntax error 230
(minor
error 215) near 'LEVEL'

so even a user that I've purposely given
privileges to
alter their own session doesn't seem to be able to
do
anything with this command.

So far I have to call this myth: Busted

---Original message----
I can't believe it. Oracle releases new patches
and
they have not been solved one of the main
problems: A
user with only the SELECT privilege can do
WHATEVER
(S)HE WANTS WITH THE ENTIRE DATABASE!!!!

I'm not sure if is time to full disclosure it but,
anyway, I will "full disclosure" one inocent
issue, an
integer overflow:

Example:
--Connect with any user with only CREATE SESSION
SQL> alter session set events '10046 trace name
context forever, level
SQL> 16';

Session altered.

SQL> alter session set events


'10046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004610046100461004


61004610046100461004610046100461004610046100461004610046100461004610046100461004610046trace
name context forever, level 16';
ERROR:
ORA-00600: internal error code, arguments: [300],
[985], [], [], [], [], [], []


It's not even a crash but (be sure) that there are
other "combinations" that makes it vulnerable to
integer overflows allowing the execution of
arbritrary
code.

PD: Hello Mary Ann! Are you on holidays?



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