[SA18302] NKads Login SQL Injection Vulnerability

TITLE:
NKads Login SQL Injection Vulnerability

SECUNIA ADVISORY ID:
SA18302

VERIFY ADVISORY:
http://secunia.com/advisories/18302/

CRITICAL:
Highly critical

IMPACT:
Security Bypass, Manipulation of data, System access

WHERE:
>From remote

SOFTWARE:
NKads 1.x
http://secunia.com/product/6738/

DESCRIPTION:
SoulBlack Security Research has discovered a vulnerability in NKads,
which can be exploited by malicious people to conduct SQL injection
attacks and compromise a vulnerable system.

Input passed to the "usuario_nkads_admin" and "password_nkads_admin"
parameters when logging into the administration section isn't
properly sanitised before being used in a SQL query. This can be
exploited to manipulate SQL queries by injecting arbitrary SQL code.

Successful exploitation requires that "magic_quotes_gpc" is
disabled.

This can further be exploited to bypass the authentication process
and access the administration section where arbitrary PHP scripts can
be uploaded to a location inside the web root (e.g. using the filename
"name.jpg.php").

The vulnerability has been confirmed in version 1.0 Alfa3 (stable).
Other versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
SoulBlack Security Research

ORIGINAL ADVISORY:
http://www.soulblack.com.ar/repo/papers/advisory/nkads_advisory.txt

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