[KSA-005] Multiple vulnerabilities in Tutos

[François SORIN <francois.sorin () kereval com>]

=================================================
Kereval Security Advisory [KSA-005]

Multiple vulnerabilities in Tutos
=================================================

PROGRAM: Tutos
HOMEPAGE: http://www.tutos.org
VULNERABLE VERSIONS: 1.1.20031017
RISK: Medium/High
IMPACT: Cross Site Scripting / Path Disclosure / SQL Injection
RELEASE DATE: 2004-01-13

=================================================
TABLE OF CONTENTS
=================================================

1..........................................................DESCRIPTION
2..............................................................DETAILS
3.............................................................EXPLOITS
4............................................................SOLUTIONS
5...........................................................WORKAROUND
6........................................................VENDOR STATUS
7..............................................................CREDITS
8...........................................................DISCLAIMER
9...........................................................REFERENCES
10............................................................FEEDBACK

1. DESCRIPTION
=================================================

"TUTOS is a tool to manage the the organizational needs of small
groups, teams, departments ...
To do this it provides some web-based tools"

(direct quote from http://www.tutos.org)


2. DETAILS
=================================================

- Cross Site Scripting :

Many exploitable bugs was found in Tutos which cause script
execution on client's computer by following a crafted url.

This kind of attack known as "Cross-Site Scripting Vulnerability"
is present in many section of the web site, an attacker can input
specially crafted links and/or other malicious scripts.

- Path Disclosure

These vulnerabilities would allow a remote user to determine the
full path to the web root directory and other potentially
sensitive information. This vulnerability can be triggered by a
remote user submitting a specially crafted HTTP request.


3. EXPLOITS
=================================================

- Cross Site Scripting :

In many Tutos forms for create new items like :
- http://[tutos]/php/company_new.php
- http://[tutos]/php/app_new.php
- http://[tutos]/php/task_new.php
- http://[tutos]/php/[xxxx]_new.php

The hostile code could be :

[script]alert("Cookie="+document.cookie)[/script]

(open a window with the cookie of the visitor)

(replace [] by <>)

- Path Disclosure / SQL Injection

The affected page is note_overview.php :
http://[tutos]/php/note/note_overview.php?id=1;

The navigator display :

Detail :
SELECT DISTINCT n.* FROM notes n WHERE n.id = 1; ORDER by
creation DESC

TUTOS Version: 1.1.20030715
PHP Version: "xxx"
PHP Config: "xxx"
APACHE Version: "xxx"
Browser: "xxx"
DB User : tutos
DB Alias : TUTOS database
URL: /tutos/php/note/note_overview.php
Request: /tutos/php/note/note_overview.php?id=1;
Called by: "xxx"
... (and the directory structure)

There is a SQL Injection risk but the exploit code need to be find.


4. SOLUTIONS
=================================================

Upgrade your Tutos version to 1.1.20040412.


5. WORKAROUND
=================================================

- Cross Site Scripting :

Use the function php eregi_replace to filter the input data.


6. VENDOR STATUS
=================================================

2004-01-13 Vulnerability discovered
2004-01-13 The vendor has reportedly been notified
2004-01-16 First response - Working on the security fixes
2004-04-12 Bugfix update (version 1.1.20040412)
2004-04-13 Public disclosure


7. CREDITS
=================================================

Discovered by François SORIN <francois.sorin () kereval com>


8. DISLAIMER
=================================================

The information within this paper may change without notice. Use of
this information constitutes acceptance for use in an AS IS condition.
There are NO warranties with regard to this information. In no event
shall the author be liable for any damages whatsoever arising out of
or in connection with the use or spread of this information. Any use
of this information is at the user's own risk.


9. REFERENCES
=================================================

- Original Version:
http://www.kereval.com/a,20040413100957.html


10. FEEDBACK
=================================================

Please send suggestions, updates, and comments to:

Kereval
Immeuble Le Gallium
80, avenue des Buttes de Coesmes
35700 RENNES - FRANCE
info () kereval com