Home page logo

fulldisclosure logo Full Disclosure mailing list archives

Sterlite SAM300AX ADSL router - Cross Site Scripting (XSS) / Remote Code Execution.
From: Karn Ganeshen <karnganeshen () gmail com>
Date: Fri, 5 Feb 2010 01:09:58 +0530

*Sterlite SAM300AX ADSL router* is provided through MTNL, New Delhi, India,
amongst other national / international locations
(www.sterlitetechnologies.com /


*+About MTNL+*


MTNL was set up on 1st April, 1986 by the Government of India to upgrade the
quality of telecom services, expand the telecom network, introduce new
services and to raise revenue for telecom development needs of India’s key
metros – Delhi, the political capital and Mumbai, the business capital of

Govt. of India currently holds 56.25% stake in the company.

*+Broadband device used+*


Sterlite SAM300AX ADSL router is deployed by MTNL at user's end (usually
home / small office) for internet broadband services.


A. Reflective Cross Site Scripting ( May also result in remote code
execution )

*+Details of Vulnerability+*

The management interface of the router is accessible through HTTP. After
logging in, we are presented with various administrative screens.

It has been found that the user input is not properly filtered and / or
encoded by the application. Hence, allowing an attacker to execute scripts
on the user's browser.

*User logged on to the Router.*

One of the vulnerable HTTP requests & parameters is provided below for
Go to Menu -> Statistics

*+POST Request+*

User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
Gecko/20091221 Firefox/3.5.7 Paros/3.2.13
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Proxy-Connection: keep-alive
Authorization: Basic YWRtaW46YWRtaW4=
Content-Type: application/x-www-form-urlencoded
Content-length: 101

*+POST Parameters+*



High Impact. This device is supplied in Delhi, and Mumbai through MTNL, a
Govt. of India controlled organization. As there is no filtering / encoding
in place, an attacker has the opportunity to get the scripts executed by the
user (logged on to the router XSS can be used to obtain
login credentials, download malware, execute scripts from external sources,
gain access to the system and subsequently perform further serious attacks
like DoS/DDoS.


A. Sanitize / filter all input.
B. Ensure ALL Input and Output is encoded properly.

-> OWASP (www.owasp.org)


*Vulnerability Found:* January 19, 2010

*Vendor First Notified: January 20, 2010 *
*Vendor Response:* None

*Follow Up Notification: *January 27, 2010
*Vendor Response:* None

*Public Disclosure:* February 05, 2010


Best Regards,
Karn Ganeshen
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

  By Date           By Thread  

Current thread:
  • Sterlite SAM300AX ADSL router - Cross Site Scripting (XSS) / Remote Code Execution. Karn Ganeshen (Feb 04)
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]