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TITLE:
NX5Linx Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA21922

VERIFY ADVISORY:
http://secunia.com/advisories/21922/

CRITICAL:
Moderately critical

IMPACT:
Spoofing, Manipulation of data, Exposure of system information,
Exposure of sensitive information

WHERE:
>From remote

SOFTWARE:
NX5Linx 1.x
http://secunia.com/product/11955/

DESCRIPTION:
Aliaksandr Hartsuyeu has reported some vulnerabilities within
NX5Linx, which can be exploited by malicious people to disclose
potentially sensitive information or conduct SQL injection and HTTP
response-splitting attacks.

1) Input passed to the "logo" parameter in link.php is not properly
verified before being used to copy files into the "logos" directory.
This can be exploited to disclose arbitrary files by passing their
full path as "logo" parameter.

2) Input passed to the "url" parameter in link.php is not properly
sanitised before being returned to the user. This can be exploited to
insert arbitrary HTTP headers, which will be included in a response
sent to the user.

3) Input passed to the "c" parameter in the script which displays the
link list (name is defined by the webmaster) and to the "l"  parameter
in the script which redirects users after they click on links (name is
defined by the webmaster) are not properly sanitised before being used
in a SQL query. This can be exploited to manipulate SQL queries by
inserting arbitrary SQL code or to insert arbitrary HTTP headers,
which will be included in a response sent to the user, but requires
that "magic_quotes_gpc" is disabled.

The vulnerabilities have been reported in version 1.0. Other versions
may also be affected.

SOLUTION:
Use another product.

PROVIDED AND/OR DISCOVERED BY:
Aliaksandr Hartsuyeu

ORIGINAL ADVISORY:
http://www.evuln.com/vulns/138/summary.html

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