Zimbra 7.2 NE & OSE 7.2 GA - Multiple Web Vulnerabilities

Document Title:
===============
Zimbra 7.2 NE  & OSE 7.2 GA - Multiple Web Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=581


Release Date:
=============
2012-06-14


Vulnerability Laboratory ID (VL-ID):
====================================
581


Common Vulnerability Scoring System:
====================================
4.5


Product & Service Introduction:
===============================
Zimbra Collaboration Server is an enterprise-class open source email, calendar and collaboration server. 
With the most innovative web application available today, Zimbra boosts the productivity of users on any 
desktop and dramatically reduces TCO compared to legacy platform vendors. Other key advantages include 
advanced compatibility with existing desktop email clients, over-the-air sync to smartphones 
(iPhone, Android, BlackBerry) as well as better server scalability and more efficient administration.

Zimbra Collaboration Server is the most capable open source email and collaboration suite available today. 
Far outstripping what is possible with simple open source mail servers, Zimbra provides organizations major 
productivity boosts with global address lists, shared calendars and document management on the web or offline 
with Zimbra Desktop. Support for standard protocols enables use of virtually any desktop client or device 
for added end user flexibility. Installation and administration is straightforward; all the interdependent 
components required by Zimbra are packaged within the server, eliminating any integration work by the 
administrator and management of the system is easily performed using the rich AJAX Admin Console. A vibrant 
community of IT experts, who are capable of handling most technical questions, supports Zimbra Collaboration 
Server Open Source Edition. The commercial version for Zimbra Collaboration Server is free to try and can 
always be reverted back to open source.

(Copy of the Vendor Homepage: http://www.zimbra.com )


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered multiple Web Vulnerabilities in Zimbra 7.2 Network Edition  & Open Source Edition 7.2 GA.


Vulnerability Disclosure Timeline:
==================================
2012-05-18:	Researcher Notification & Coordination
2012-05-22:	Vendor Notification
2012-06-03:	Vendor Response/Feedback
2012-06-09:	Vendor Fix/Patch
2012-06-15:	Public Disclosure


Discovery Status:
=================
Published


Affected Product(s):
====================
VMware
Product: Zimbra Network Edition & Zimbra Open Source Edition 7.2 & 7.2 GA


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Medium


Technical Details & Description:
================================
Multiple persistent input validation vulnerabilities are detected in Zimbra 7.2 Network Edition  & Open Source Edition 7.2 GA.
The bugs allow remote attackers to implement/inject malicious script code on the application-side (persistent). 
Successful exploitation of the vulnerability can lead to session hijacking (manager/admin) or stable (persistent) 
context manipulation. Exploitation requires low user inter action & privileged application user account.

The first vulnerability is located in the favoritenliste & the bound ajax exception handling. Attackers can inject malicious 
script code as `Adresse des Favoriten`. The script code executes (persistent) the dbms stored context via 
exception-handling out of the invalid address error.

The second vulnerability is located in the alarm function of the Aufgaben - Einstellungen für Benachrichtigungen.
Attacker can start an Event with malicious script code inside of the date input fields. The result is a persistent 
execution out of the exception-handling to all event or aufgaben viewers.

The third vulnerability is located in the Neuer Kontakt Adresse input field. Attackers can implement new users with malicious 
script code. After the inject the script code executes (persistent) out of the user account listing (output) index context.

The last issue is located on the CSV Contact import and export. Attacker can form malicious cvs files with script code inside of 
the user contact details. After the import the script code executes (persistent) out of the zimbra application context. 

Vulnerable Section(s): 
			[+] Adressbuch >Neuer Kontakt - Adresse
			[+] FavoritenListe > Exception Handling  [Invalid - Exception Handling] > Adresse
			[+] Aufgaben > Einstellungen für Benachrichtigungen > Exception Handling
			[+] File Import/Export > Ort Name > CSV


Vulnerable Module(s):
			[+] [Adresse - Name]
			[+] [Adresse - Exception Handling]
			[+] [Date]
			[+] [Ort Name]


Vulnerable Parameter(s):
			[+] ImgNodeCollapsed
			[+] DwtMsgArea DWT76_Msg DWT95_notes
			[+] contactHeader & companyName
			[+] ZmReminderDialog


Proof of Concept (PoC):
=======================
The persistent Web Vulnerabilities can be exploited by remote attacker with low required user inter action. 
For demonstration or reproduce ...

Review: Aufgabenerinnerung > Alarm > Ort

<div class="ZmReminderDialog" id="DWT451"><table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody><tr id="DWT1603"><td valign="top" width="100%"><b>"><[PERSISTENT SCRIPT CODE EXECUTION!]") <</b>
<br>Wann: Von 30. Apr 2012 bis 6. Jun 2012<br>Ort: 
"><[PERSISTENT SCRIPT CODE EXECUTION!]")' <<br=""></td><td
 valign=top align=right><table border=0 cellpadding=1 
cellspacing=1><tr><td valign=top align=right><table 



Review: FavoritenListe > Exception Handling  [Invalid] > Adresse

<td class="DwtMsgArea" id="DWT76_Msg">Leider ist ""><[PERSISTENT SCRIPT CODE EXECUTION!]) <" 
kein gültiger Name. Er enthält mindestens ein ungültiges Zeichen.</td>

... or 

<div id="DWT95_notes" style="color: gray; overflow: hidden;">#1: ">
<[PERSISTENT SCRIPT CODE EXECUTION!]") <</div></td></tr>
</tbody></table></td></tr></tbody></table></div></td>



Review:  Adressbuch > Neuer Kontakt > Adresse 

<td align="left" nowrap="true" valign="top"><div class="itemMeta"><span id="DWT95_lockUser" 
class="itemValue"></span></div><div class="itemTime"><span id="DWT95_lockTime" class="itemValue"></span></div>
</td></tr><tr style="display: table-row;" id="DWT95_notes_section"><td colspan="3"><div id="DWT95_expand" 
style="float:left;cursor:pointer;"><div class="ImgNodeCollapsed" style=""></div></div><div id="DWT95_notes" 
style="color: gray; overflow: hidden; height: 15px;">#1: "><[PERSISTENT SCRIPT CODE EXECUTION!]") <</div>
</td></tr></tbody></table></td></tr></tbody></table>

... or

<div class="contactHeader ">"><[PERSISTENT SCRIPT CODE EXECUTION!]") <</div><div class="companyName">
<span>"><[PERSISTENT SCRIPT CODE EXECUTION!]") <</span></div>



Review:  Contacts > Export/Import > CSV

"First Name","Last Name","Middle Name","Name","Nickname","E-mail Address","Home Street","Home City",
"Home Postal Code","Home State","Home Country","Home Phone","Home Fax","Mobile Phone","Personal Web Page",
"Business Street","Business City","Business Postal Code","Business State","Business Country","Business Web Page",
"Business Phone","Business Fax","Pager","Company","Job Title","Department","Office Location","Notes"
"","","","",""">
<[PERSISTENT SCRIPT CODE EXECUTION!]") <","","","","","","","","","","","","","","","","","","","","","","","",""
"Alan",
"Ajax","","","","[email protected]","1600 Pennstate ave Ste 1230
Springfield, IL","","","","","","","","","","","",
"","","","","","","","","","",""
"asd","asdasd","","","","","""><[PERSISTENT SCRIPT CODE EXECUTION!]") <","","","","",
"","","","""><[PERSISTENT SCRIPT CODE EXECUTION!]") <","","","","","","","","","","jherfed","fdgdfwwsdfds","","",
"""><[PERSISTENT SCRIPT CODE EXECUTION!]") <"
"Laura","Linux","","","","[email protected]","7070 W. Peter Pan St.
Quahog, 
RI","","","","","","","728-555-9090","","","","","","","","","","","","","","",""
"Zack","Zimbra","","","","
[email protected]","555 N. 310th Ave
Phoenix, AZ","","","","","","","602-555-9090","","","","","",""
,"","","","","","","","",""



Reference(s):
			../mail.htm
			../index.txt
			../Contacts.csv
			../aufgabeerinnerung-ort.htm
			../adi1-contact.htm


Security Risk:
==============
The security risk of the persistent input validation vulnerabilities are estimated as high(-).


Credits & Authors:
==================
Vulnerability Laboratory [Research Team]  -    Benjamin Kunz Mejri [Rem0ve]  ([email protected])


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=========================
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