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TITLE:
Easynews "en_login_id" Authentication Bypass Vulnerability

SECUNIA ADVISORY ID:
SA22466

VERIFY ADVISORY:
http://secunia.com/advisories/22466/

CRITICAL:
Highly critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
Easynews 4.x
http://secunia.com/product/12348/

DESCRIPTION:
nuffsaid has discovered a vulnerability in Easynews, which can be
exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to an error within the admin.php
script, which can be exploited to evade the authentication process by
passing some input to the "en_login_id" parameter.

Since administrators are allowed to edit the config2.php file, this
can further be exploited to execute arbitrary PHP code.

Successful exploitation requires that "register_globals" is enabled.

The vulnerability is confirmed in version 4.4.1. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that the authentication works
correctly or disable "register_globals".

PROVIDED AND/OR DISCOVERED BY:
nuffsaid

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About:
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