Bilyoner mobile apps prone to various SSL/TLS attacks

[harun.esur@xxxxxxxxxxxx]

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                                                  Sceptive Security Advisory

Synopsis:          Bilyoner mobile apps prone to various SSL/TLS attacks
Product:             Various mobile applications
Advisory URL:    
http://sceptive.com/p/bilyoner-mobile-apps-prone-to-various-ssltls-attacks
Advisory number: CVE-2014-3750
Issue date:          2014-04-02
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1. Summary:

Bilyoner [1] is an online betting platform for various betting options on idda 
[2] , spor toto [3], milli piyango [4], tjk [5].

We have found that mobile apps vulnerable to SSL/TLS attacks which eventually 
lets attackers to gain sensitive information and hijack user sessions.

2. Description:

On misconfigured network environments it is possible to redirect HTTPS packets 
over MITM tools for SSL sessions.

When we redirected our network on such a configuration we have observed that 
app sends/receives user data unecrypted.

REQUEST

{
    "password": "333444",
    "sessionId": 
"9331b4c44edf7c72f4963bc1799416bd071b5eb2aa049ad7ce968b06965f444e",
    "username": "12312312"
}

And also session-id's are vulnerable for attackers to use on their own 
configurations to hijack other users' sessions. Such as;

RESPONSE

{
    "bilyonerCookies": {                                                        
                                           
        "JSESSIONID": 
"RQdFTcnPydRypLXc71kXhYjBtN5p5sGT31GN4hvRlsN8qTz2GQ2T!-1656694263",        
         "NSC_wtfswfs-ttm": "ffffffffc3a0840e45525d5f4f58455e445a4a423660"
    },                                                                          
                                           
    "bilyonerSessionId": 
"C1yTTcnP2wSnwyV2gstRkhrsBh8dsqJfvCYBFHqTGvVwhZSYhsJM!-1656694263!1394403087638",
    "sessionId": 
"9331b4c44edf7c72f4963bc1799416bd071b5eb2aa049ad7ce968b06965f444e"
}

3. Solution:

For Android apps it's advised to upgrade 2.3.1. For IOS platforms 4.6.2 is 
available..

4. Links:

[1] http://www.bilyoner.com/
[2] http://www.iddaa.com/
[3] https://www.sportoto.gov.tr/
[4] http://www.millipiyango.gov.tr/
[5] http://www.tjk.org/EN

5. Contact:

Harun Esur <harun.esur@xxxxxxxxxxxx>

Copyright 2014 Sceptive <http://sceptive.com>

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