TITLE:
phpht Topsites Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA18782

VERIFY ADVISORY:
http://secunia.com/advisories/18782/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
phpht Topsites 1.x
http://secunia.com/product/7863/

DESCRIPTION:
Aliaksandr Hartsuyeu has reported some vulnerabilities in phpht
Topsites, which can be exploited by malicious people to conduct
script insertion and SQL injection attacks, and bypass certain
security restrictions.

1) Input passed to the "username" parameter isn't properly sanitised
before being used in a SQL query. This can be exploited to manipulate
SQL queries by injecting arbitrary SQL code.

Some other unspecified parameters and scripts are reportedly also
affected.

Successful exploitation requires that "magic_quotes_gpc" is
disabled.

2) An error in the authentication process in "check.php" can be
exploited to bypass the authentication process by defining certain
cookie parameters.

3) Input passed to certain parameters in "link_edited.php" and
"link_added.php" isn't properly sanitised before being used. This can
be exploited to inject arbitrary HTML and script code, which will be
executed in a user's browser session in context of an affected site
when the malicious user data is viewed.

The vulnerabilities have been reported in version 1.3. Other versions
may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised and
that users are properly authenticated.

PROVIDED AND/OR DISCOVERED BY:
Aliaksandr Hartsuyeu

ORIGINAL ADVISORY:
http://evuln.com/vulns/59/summary.html

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