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TITLE:
Flatnuke Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA22345

VERIFY ADVISORY:
http://secunia.com/advisories/22345/

CRITICAL:
Highly critical

IMPACT:
Manipulation of data, Exposure of sensitive information, System
access

WHERE:
>From remote

SOFTWARE:
FlatNuke 2.x
http://secunia.com/product/4477/

DESCRIPTION:
rgod has discovered some vulnerabilities in Flatnuke, which can be
exploited by malicious people to disclose certain sensitive
information, perform certain actions with escalated privileges, or to
compromise a vulnerable system.

1) Input passed to the "userlang" parameter in header.php is not
properly verified before being used to include files. This can be
exploited to include files from local resources.

2) Input passed to the "file_da_canc" parameter in
sections/none_Sondaggio/Vecchi_sondaggi/sections.php is not properly
verified before being used. In combination with #1 this can be
exploited to delete arbitrary files with privileges of the web
server.

3) An input validation error exists in the authentication process
when checking the "myforum" cookie parameter. This can e.g be
exploited to upload and execute arbitrary PHP files.

The vulnerabilities have been confirmed in version 2.5.8. Other
versions may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
rgod

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/2499
http://milw0rm.com/exploits/2498

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About:
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