Re: Re: [KAPDA::#16] - SMF SQL Injection
[quote]
I'm a developer from over at simplemachines and I do not see how this can pose
an exploit? Let's examine the code piece by piece:
The code is entered at this point:
if (!is_numeric($_REQUEST['start']))
So, will be executed if $_REQUEST['start'] is a string. It's then used in the
query. However, it's used in the query in this piece of code:
substr(strtolower($_REQUEST['start']), 0, 1)
So, the string is set to lower case, and then only the FIRST letter is used
within the query. How can anyone exploit the database with a one character
insertion? Of course this is within single quotes as well, so it cannot even be
a command.
I simply cannot see how you could possibly exploit SQL from this?
[/quote]
mphhh, correct...
the only problem I see is path disclosure, 'cause you can inject only a one
char string:
http://[target]/smfrc1/index.php?action=mlist;sort=realName;start=\;desc
query becomes:
SELECT COUNT(ID_MEMBER) FROM smf_members WHERE LOWER(SUBSTRING(realName, 1, 1))
< '\' AND is_activated = 1
and at screen, you have:
Errore di sintassi nella query SQL vicino a ''\'
AND is_activated = 1' linea 3
File: [full_application_path]Memberlist.php
Line: 162
but I think you cannot inject commands...