Calisto light, light plus and full, Sql Injection And user or Admin bypass

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Calisto light, light plus and full, Sql Injection And user or Admin bypass
Vendor URL: http://www.calistosoft.com.ar/
Advisore: http://lostmon.blogspot.com/2011/08/calisto-light-light-plus-and-full-sql.html
Vendor notify: YES exploit available: YES
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Vulnerability Description
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Calisto Light, Light Plus and Full contains a flaw that may
allow an attacker to carry out an SQL injection attack. The
issue is due to the script not properly sanitizing user-supplied
input to 'usuario' form field and "txtEmail' param upon submision
to 'login.aspx' and '/admin/loginAdmin.aspx' This may allow an
attacker to inject or manipulate SQL queries in the backend database.
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UPDATE 14/08/2011
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Detalle.aspx, Oferta.aspx, Categoria.aspx, contacto.aspx,
marca.aspx, novedades.aspx, empresa.aspx FAQ.aspx and Registracion.aspx
are afected by this flaw too.

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Versions afected
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Calisto Light
Calisto Light plus
Calisto Full

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Proof Of Concept
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this issue can be used to bypass admin validation or user validation

1- If an attacker writes in 'Usuario' box:

someword'or'1'='1'
and click in login button. wen the aplication post to 'login.aspx'
it shows a nice SQL warning but if write:

someword'or'1'='1'--

it bypass validation. if anyones know a user email, then he can
log as this user :)

2- If an attacker writes in 'usuario' box from admin section:

Admin'or'1'='1'--

And click in login button wen the aplication post to
'/admin/loginAdmin.aspx' it bypass Admin validation. :)


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Solution
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No solution was available at this time.
I have send four emails to calistosoft via his webform
and info and support mails to get initial contact but
they haven't respond :(

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Timeline
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Discovered : 30-07-2011
Vendor Notify: 7-08-2011
Vendor response: no response.
Workarround patch: no patch
Vendor Patch: no patch
Public Disclosure: 11-08-2011

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Atentamente:
Lostmon (lostmon@gmail.com)
Web-Blog: http://lostmon.blogspot.com/
Google group: http://groups.google.com/group/lostmon (new)
--
La curiosidad es lo que hace mover la mente....