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PressePortal NewsAktuell (DPA) - Multiple Vulnerabilities


From: Vulnerability Lab <research () vulnerability-lab com>
Date: Mon, 8 Feb 2016 12:14:36 +0100

Document Title:
===============
PressePortal NewsAktuell (DPA) - Multiple Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1676

Vulnerability Magazine: 
http://magazine.vulnerability-db.com/?q=articles/2016/02/08/researcher-uncovers-multiple-sql-injection-vulnerabilities-dpa-presseportal


Release Date:
=============
2016-02-08


Vulnerability Laboratory ID (VL-ID):
====================================
1676


Common Vulnerability Scoring System:
====================================
9.1


Product & Service Introduction:
===============================
Presseportale sind Websites, die auf das Veröffentlichen von Pressemitteilungen spezialisiert sind. Sie informieren 
somit die Allgemeinheit und 
speziell Journalisten über Aussagen, Dementis, Ereignisse, Produkte und Veranstaltungen. Presseportale werden von 
Institutionen oder Unternehmen, 
häufig auch durch PR-Agenturen mit Pressemitteilungen bestückt.

(Copy of the Homepage: https://de.wikipedia.org/wiki/Presseportal )


Abstract Advisory Information:
==============================
A Vulnerability Laboratory Core Team Researcher discovered multiple remote vulnerabilities in the official Presse 
Portal (DPA) online service web-application.


Vulnerability Disclosure Timeline:
==================================
2016-01-19: Researcher Notification & Coordination (Benjamin Kunz Mejri - Evolution Security GmbH)
2016-01-20: Vendor Notification (DPA Presseportal Data Security Team)
2016-01-22: Vendor Response/Feedback (DPA Presseportal Data Security Team)
2016-02-06: Vendor Fix/Patch (Presseportal Developer Team)
2016-02-08: Public Disclosure (Vulnerability Laboratory)


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


Affected Product(s):
====================

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


Severity Level:
===============
Critical


Technical Details & Description:
================================
1.1
A remote sql injection web vulnerability has been discovered in the official Presse Portal (DPA) online service 
web-application.
The vulnerability allows remote attackers to execute own sql commands to compromise the web-applicaation or connected 
dbms.

The vulnerabilities are located in the `id` and `city` values of the `iframe.htx` `userfeed.htx` `userchoosefeed.htx` 
`change_profile.htx` files. 
Remote attackers are able to execute own sql commands by manipulation of the GET or POST method request with the 
vulnerable id and city parameters. 
The request method to inject the sql command is GET or POST and the issue is located on the application-side of the 
`./services/content/` module. 
The sql vulnerability allows remote attackers to compromise the database management system that is connected to the 
web-application. 3 oft the issues 
require a low privileged user account. The other two issues are POST request sql injections vulnerabilities.

The security risk of the sql injection vulnerability is estimated as high with a cvss (common vulnerability scoring 
system) count of 9.1.
Exploitation of the remote sql injection web vulnerability requires no user interaction or privileged web-application 
user account.
Successful exploitation of the remote sql injection results in database management system, web-server and 
web-application compromise.

Request Method(s):
                                                [+] GET & POST

Vulnerable Module(s):
                                                [+] ./services/content/
                                                [+] ./services/


Vulnerable File(s):
                                                [+] iframe.htx
                                                [+] userfeed.htx
                                                [+] userchoosefeed.htx
                                                [+] change_profile.htx
                                                [+] userindex.htx

Vulnerable Parameter(s):
                                                [+] id
                                                [+] city
                                                [+] website_desc


1.2
Multiple client-side cross site scripting web vulnerabilities has been discovered in the official Presse Portal (DPA) 
online service web-application.
A vulnerability allows remote attackers to inject malicious script codes on the client-side to compromise application 
to browser requests.

The vulnerability is located in the `page` value of the `location_search.php` file. Remote attackers are able to inject 
own malicious script codes to 
the client-side of the affected web-application. The request method to inject is POST and the attack vector is 
client-side. The attacker inject the 
payload in the page value to execute the code in the results page of the location search module. 

The security risk of the client-side web vulnerability is estimated as medium with a cvss (common vulnerability scoring 
system) count of 3.3. 
Exploitation of the non-persistent web vulnerability requires a no privilege web-application user account and only low 
user interaction. 
Successful exploitation results in session hijacking, persistent phishings attacks, persistent external redirect and 
malware loads or 
persistent manipulation of affected or connected module context.

Request Method(s):
                                        [+] GET

Vulnerable Module(s):
                                        [+] ./katalog/

Vulnerable File(s):
                                        [+] katalog.htx
                                        [+] -6694

Affected Parameter(s):
                                        [+] action=showDate&date=
                                        [+] action=showChar&char=


Proof of Concept (PoC):
=======================
The SQL Injection web vulnerabilities can be exploited by remote attackers without privileged web-application without 
user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to 
continue.

Vulnerable Input-Fields: firstname, surname, street, zip, city, phone & company ( all editable fields)

PoC: Remote SQL Injection
http://www.presseportal.de/services/content/iframe.htx?id=0696afc466c0d37a34b865f85bd9b988%27%20AND%201=%271
http://www.presseportal.de/services/content/userfeed.htx?id=45c7c17402d167c99bb483f6685f1b52%27%20AND%201=%271
http://www.presseportal.de/services/content/userchoosefeed.htx?id=1ac520b9f998ca82d62efed7cdac0349&apos; AND 1='1

PoC: #2 Pre-Auth
UPDATE Blind sqli with output
goto
http://www.presseportal.de/services/change_profile.htx
change city to the following payload
Payload ', city=(SQL QUERY), company='
Note: You'll see the results in the city form ;)


PoC: #3 Pre-Auth
http://www.presseportal.de/services/content/userindex.htx
create user account
goto http://www.presseportal.de/services/content/userindex.htx
create a feed
insert needed parameters (website and a newscategory)
injectable field/parameter is : website_desc



PoC: Cross Site Scripting
http://www.presseportal.de/katalog.htx?action=showChar&char=%22%3E%3Cscript%3Ealert%28123%29;%3C/script%3E
http://www.presseportal.de/katalog/6694?action=showDate&date=20.01.2016%22%3E%3Cscript%3Ealert%28123%29;%3C/script%3E


Reference(s):
http://www.presseportal.de/
http://www.presseportal.de/katalog.htx
http://www.presseportal.de/katalog/6694
http://www.presseportal.de/services/change_profile.htx
http://www.presseportal.de/services/content/userchoosefeed.htx
http://www.presseportal.de/services/content/userfeed.htx
http://www.presseportal.de/services/content/iframe.htx
http://www.presseportal.de/services/content/userindex.htx


Security Risk:
==============
1.1
The security risk of the remote sql injection web vulnerabilities in the dpa presseportal web-application are estimated 
as critical. (CVSS 9.1)

1.2
The security risk of the cross site scripting web vulnerabilities in the dpa presseportal web-application are estimated 
as medium. (CVSS 3.3)


Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Marco Onorati 
[http://www.vulnerability-lab.com/show.php?user=Marco%20Onorati]


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