SecurityReason - phpBB 2.0.13 SQL error in session ( Research Advisory )

Advisory Text :

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[phpBB 2.0.13 SQL error in session cXIb8O3.8]

Author: Maksymilian Arciemowicz (cXIb8O3)
Date: 10.3.2005
from securityreason.com TEAM

- --- 0.Description ---
phpBB is a high powered, fully scalable, and highly customizable Open
Source bulletin board package. phpBB has a user-friendly interface, simple
and straightforward administration panel, and helpful FAQ. Based on the
powerful PHP server language and your choice of MySQL, MS-SQL, PostgreSQL
or Access/ODBC database servers, phpBB is the ideal free community solution
for all web sites.
Contact with author http://www.phpbb.com/about.php.

- --- 1. Session SQL error ---
Error is non critical but is very interesting because is specific.
If you don`t have cookies in forum, go to for exemple:

URL1# http://[HOST]/[DIR]/modcp.php?mode=delete&t=-99&sid=

or

URL2# http://[HOST]/[DIR]/modcp.php?mode=move&t=-99&sid=

etc.
And have you fun error.

Error message :
- ---------------
phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1064 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 ' 0)' at line 3

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start,
session_time, session_ip, session_page, session_logged_in) VALUES
('f908cee2ec0ceabe41c17c16198d6ff5', -1, 1107468751, 1107468751,
'7f000001', , 0)

Line : 158
File : /www/phpBB2/includes/sessions.php
- ---------------

Sql injection? No! Why? Because you don`t can insert varible to querty.

And some what.. if you have cookie try to go to this url and can you see
next error.

Error message :
- ---------------
phpBB : Critical Error

Error updating sessions table

DEBUG MODE

SQL Error : 1064 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 'WHERE session_id = '06f01a9adbc6777f54039ab745c038f7'' at line

UPDATE phpbb_sessions SET session_time = 1107469991, session_page = WHERE
session_id = '06f01a9adbc6777f54039ab745c038f7'

Line : 279
File : /www/phpBB2/includes/sessions.php
- ---------------

What is wrong? Wrong is variable $page_id in function session_begin()
[ERROR1] and variable $thispage_id in function session_pagestart()[ERROR2].
Frist function try start new session but variable $page_id don't exist and
then we see error in sql query.
Next function try change something in session but variable don`t exist and
this is a problem.

Example sql query is:

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start,
session_time, session_ip, session_page, session_logged_in) VALUES
('26fc83315ce07d83a68014f18ccf3486', -1, 1110470967, 1110470967,
'7f000001', , 0)

- --- 2. Greets ---

sp3x

and

suicide

- --- 3.Contact ---
Author: Maksymilian Arciemowicz < cXIb8O3 >
Email: max [at] jestsuper [dot] pl or cxib [at] securityreason [dot] com
securityreason.com TEAM

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