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TITLE:
The Classified Ad System default.asp Cross-Site Scripting and SQL
Injection

SECUNIA ADVISORY ID:
SA23289

VERIFY ADVISORY:
http://secunia.com/advisories/23289/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
The Classified Ad System
http://secunia.com/product/12857/

DESCRIPTION:
Laurent Gaffié and Benjamin Mossé have reported some vulnerabilities
in The Classifieds Ad System, which can be exploited by malicious
people conduct SQL injection and cross-site scripting
vulnerabilities.

1) Input passed to the "main" and "cat" parameter in default.asp is
not properly sanitised before being used in a SQL query. This can be
exploited to manipulate SQL queries by injecting arbitrary SQL code.


2) Input passed to the "main" and "cat" parameter in default.asp is
not properly sanitised before being returned to a user. This can be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.

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

PROVIDED AND/OR DISCOVERED BY:
Laurent Gaffié and Benjamin Mossé

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About:
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