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TITLE:
NavBoard Local File Inclusion and Cross-Site Scripting

SECUNIA ADVISORY ID:
SA31463

VERIFY ADVISORY:
http://secunia.com/advisories/31463/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting, Exposure of system information, Exposure of
sensitive information

WHERE:
>From remote

SOFTWARE:
NavBoard 16.x
http://secunia.com/product/19569/

DESCRIPTION:
CraCkEr has discovered some vulnerabilities in NavBoard, which can be
exploited by malicious people to conduct cross-site scripting attacks
and disclose sensitive information.

1) Input passed to the "module" parameter in admin_modules.php and
modules.php is not properly verified before being used to include
files. This can be exploited to include arbitrary files from local
resources via directory traversal attacks and URL-encoded NULL
bytes.

Successful exploitation of this vulnerability requires that
"magic_quotes_gpc" is disabled.

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

The vulnerabilities are confirmed in version 16 (2.6.0). Other
versions may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
CraCkEr

ORIGINAL ADVISORY:
http://packetstorm.linuxsecurity.com/0808-exploits/navboard-lfixss.txt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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