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IT Security and Insecurity Portal www.waraxe.us Forum Index -> Sql injection -> Sql Injection in Invision Power Board Goto page Previous  1, 2    View previous topic :: View next topic  Re: Sql Injection in Invision Power Board Posted: Tue Apr 26, 2005 1:38 am waraxe Site admin   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 Posted: Tue Apr 26, 2005 2:19 pm cXIb8O3 Active user   Joined: Feb 17, 2005 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. Posted: Tue Apr 26, 2005 5:35 pm waraxe Site admin   Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu 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 Posted: Tue Apr 26, 2005 5:59 pm cXIb8O3 Active user   Joined: Feb 17, 2005 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]; ?> Posted: Tue Apr 26, 2005 6:07 pm waraxe Site admin   Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu Look at my previous post please --> i was talking about sql queries that contain "ORDER BY" part. Your example is without "ORDER BY". Posted: Tue Apr 26, 2005 7:38 pm cXIb8O3 Active user   Joined: Feb 17, 2005 Posts: 26 Location: Poland<>Luxembourg ok . relax Posted: Tue Apr 26, 2005 7:44 pm waraxe Site admin   Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu No probs, take it easy Posted: Tue Apr 26, 2005 11:19 pm gulftech Valuable expert   Joined: Apr 20, 2005 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 http://www.gulftech.org/?node=research&article_id=00028-03022004 Posted: Wed Apr 27, 2005 6:50 am cXIb8O3 Active user   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. Posted: Fri Apr 29, 2005 12:41 am gulftech Valuable expert   Joined: Apr 20, 2005 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() Posted: Tue May 03, 2005 3:53 am devn00b Regular user   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? 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