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#!/usr/bin/perl
use strict;
#VERSION,2.1.5
# $Id$
use Getopt::Long;
use Time::Local;
Getopt::Long::Configure('no_ignore_case');
###############################################################################
# Nikto #
###############################################################################
# Copyright (C) 2001 CIRT, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 2
# of the License only.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to
# Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# Contact Information:
# Sullo (sullo@cirt.net)
# http://cirt.net/
#######################################################################
# See the LICENSE.txt file for more information on the License Nikto is distributed under.
#
# This program is intended for use in an authorized manner only, and the author
# can not be held liable for anything done with this program, code, or items discovered
# with this program's use.
#######################################################################
# global var/definitions
use vars qw/$TEMPLATES %CLI %VARIABLES %TESTS/;
use vars qw/%NIKTO %CONFIGFILE %COUNTERS %db_extensions/;
use vars qw/@RESULTS @PLUGINS @DBFILE @REPORTS %CONTENTSEARCH/;
# setup
$COUNTERS{'scan_start'} = time();
$VARIABLES{'DIV'} = "-" x 75;
$VARIABLES{'name'} = "Nikto";
$VARIABLES{'version'} = "2.1.5";
$VARIABLES{'configfile'} = "/etc/nikto/config.txt";
# signal trap so we can close down reports properly
$SIG{'INT'} = \&safe_quit;
config_init();
setup_dirs();
require "$CONFIGFILE{'PLUGINDIR'}/nikto_core.plugin";
nprint("T:" . localtime($COUNTERS{'scan_start'}) . ": Starting", "d");
$VARIABLES{'GMTOFFSET'} = gmt_offset();
use LW2; ### Change this line to use a different installed version
use JSON::PP;
my ($a, $b) = split(/\./, $LW2::VERSION);
die("- You must use LW2 2.4 or later\n") if ($a != 2 || $b < 4);
general_config();
load_databases();
load_databases('u');
nprint("- $VARIABLES{'name'} v$VARIABLES{'version'}");
nprint($VARIABLES{'DIV'});
# No targets - quit while we're ahead
if ($CLI{'host'} eq "") {
nprint("+ ERROR: No host specified");
usage();
}
$COUNTERS{'total_targets'} = $COUNTERS{'hosts_completed'} = 0;
load_plugins();
# Parse the supplied list of targets
my @MARKS = set_targets($CLI{'host'}, $CLI{'ports'}, $CLI{'ssl'}, $CLI{'root'});
if (defined($CLI{'key'}) || defined($CLI{'cert'})) {
$CLI{'key'} = $CLI{'cert'} unless (defined($CLI{'key'}));
$CLI{'cert'} = $CLI{'key'} unless (defined($CLI{'cert'}));
}
# Now check each target is real and remove duplicates/fill in extra information
foreach my $mark (@MARKS) {
$mark->{'test'} = 1;
# Try to resolve the host
($mark->{'hostname'}, $mark->{'ip'}, $mark->{'display_name'}) = resolve($mark->{'ident'});
# Skip if we can't resolve the host - we'll error later
if (!defined $mark->{'ip'}) {
$mark->{'test'} = 0;
next;
}
# Check that the port is open
my $open =
port_check($mark->{'hostname'}, $mark->{'ip'}, $mark->{'port'}, $CLI{'key'}, $CLI{'cert'});
if (defined $CLI{'vhost'}) { $mark->{'vhost'} = $CLI{'vhost'} }
if ($open == 0) {
$mark->{'test'} = 0;
next;
}
else {
$COUNTERS{'total_targets'}++;
}
$mark->{'ssl'} = $open - 1;
if ($mark->{'ssl'}) {
$mark->{'key'} = $CLI{'key'};
$mark->{'cert'} = $CLI{'cert'};
}
}
# Open reporting
report_head($CLI{'format'}, $CLI{'file'});
# Load db_tests
set_scan_items();
# Start hook to allow plugins to load databases etc
run_hooks("", "start");
# Now we've done the precursor, do the scan
foreach my $mark (@MARKS) {
next unless ($mark->{'test'});
$mark->{'start_time'} = time();
$VARIABLES{'TEMPL_HCTR'}++;
if (defined $CLI{'vhost'}) {
$mark->{'vhost'} = $CLI{'vhost'};
}
# Saving responses
if ($CLI{'saveresults'} ne '') {
$mark->{'save_dir'} = save_createdir($CLI{'saveresults'}, $mark);
$mark->{'save_prefix'} = save_getprefix($mark);
}
# Cookies
if (defined $CONFIGFILE{'STATIC-COOKIE'}) {
$mark->{'cookiejar'} = LW2::cookie_new_jar();
# parse conf line into name/value pairs
foreach my $p (split(/;/, $CONFIGFILE{'STATIC-COOKIE'})) {
$p =~ s/(?:^\s+|\s+$)//;
$p =~ s/"(?:[ ]+)?=(?:[ ]+)?"/","/g;
my @cv = parse_csv($p);
# Set into the jar
LW2::cookie_set(\%{ $mark->{'cookiejar'} }, $cv[0], $cv[1]);
}
}
$mark->{'total_vulns'} = 0;
$mark->{'total_errors'} = 0;
my %FoF = ();
nfetch($mark, "/", "GET", "", "", { noprefetch => 1, nopostfetch => 1 }, "getinfo");
report_host_start($mark);
if ($CLI{'findonly'}) {
my $protocol = "http";
if ($mark->{'ssl'}) { $protocol .= "s"; }
if ($mark->{'banner'} eq "") {
$mark->{'banner'} = "(no identification possible)";
}
add_vulnerability($mark,
"Server: $protocol://$mark->{'display_name'}:$mark->{'port'}\t$mark->{'banner'}",
0);
}
else {
dump_target_info($mark);
unless ((defined $CLI{'nofof'}) || ($CLI{'plugins'} eq '@@NONE')) { map_codes($mark) }
run_hooks($mark, "recon");
run_hooks($mark, "scan");
}
$mark->{'end_time'} = time();
$mark->{'elapsed'} = $mark->{'end_time'} - $mark->{'start_time'};
if (!$CLI{'findonly'}) {
if (!$mark->{'terminate'}) {
nprint(
"+ $COUNTERS{'total_checks'} items checked: $mark->{'total_errors'} error(s) and $mark->{'total_vulns'} item(s) reported on remote host"
);
}
else {
nprint(
"+ Scan terminated: $mark->{'total_errors'} error(s) and $mark->{'total_vulns'} item(s) reported on remote host"
);
}
nprint( "+ End Time: "
. date_disp($mark->{'end_time'})
. " (GMT$VARIABLES{'GMTOFFSET'}) ($mark->{'elapsed'} seconds)");
}
nprint($VARIABLES{'DIV'});
$COUNTERS{'hosts_completed'}++;
report_host_end($mark);
}
$COUNTERS{'scan_end'} = time();
$COUNTERS{'scan_elapsed'} = ($COUNTERS{'scan_end'} - $COUNTERS{'scan_start'});
report_summary();
report_close();
if (!$CLI{'findonly'}) {
nprint("+ $COUNTERS{'hosts_completed'} host(s) tested");
nprint("+ $COUNTERS{'totalrequests'} requests made in $COUNTERS{'scan_elapsed'} seconds", "v");
send_updates(@MARKS);
}
nprint("T:" . localtime() . ": Ending", "d");
exit;
#################################################################################
# Load config files in order
sub config_init {
# read just the --config option
{
my %optcfg;
Getopt::Long::Configure('pass_through', 'noauto_abbrev');
GetOptions(\%optcfg, "config=s");
Getopt::Long::Configure('nopass_through', 'auto_abbrev');
if (defined $optcfg{'config'}) { $VARIABLES{'configfile'} = $optcfg{'config'}; }
}
# Read the config files in order
my ($error, $home);
my $config_exists = 0;
$error = load_config("$VARIABLES{'configfile'}");
$config_exists = 1 if ($error eq "");
# Guess home directory -- to support Windows
foreach my $var (split(/ /, "HOME USERPROFILE")) {
$home = $ENV{$var} if ($ENV{$var});
}
$error = load_config("$home/nikto.conf");
$config_exists = 1 if ($error eq "");
# Guess Nikto current directory
my $NIKTODIR = $0;
chomp($NIKTODIR);
$NIKTODIR =~ s#[\\/]nikto.pl$##;
$error = load_config("$NIKTODIR/nikto.conf");
$config_exists = 1 if ($error eq "");
$error = load_config("nikto.conf");
$config_exists = 1 if ($error eq "");
if ($config_exists == 0) {
die "- Could not find a valid nikto config file\n";
}
return;
}
#################################################################################
# load config file
# error=load_config(FILENAME)
sub load_config {
my $configfile = $_[0];
open(CONF, "<$configfile") || return "+ ERROR: Unable to open config file '$configfile'";
my @CONFILE = <CONF>;
close(CONF);
foreach my $line (@CONFILE) {
$line =~ s/\#.*$//;
chomp($line);
$line =~ s/\s+$//;
$line =~ s/^\s+//;
next if ($line eq "");
my @temp = split(/=/, $line, 2);
if ($temp[0] ne "") { $CONFIGFILE{ $temp[0] } = $temp[1]; }
}
# add CONFIG{'CLIOPTS'} to ARGV if defined...
if (defined $CONFIGFILE{'CLIOPTS'}) {
my @t = split(/ /, $CONFIGFILE{'CLIOPTS'});
foreach my $c (@t) { push(@ARGV, $c); }
}
# Check for necessary config items
check_config_defined("CHECKMETHODS", "HEAD");
check_config_defined('@@MUTATE', 'dictionary;subdomain');
check_config_defined('@@DEFAULT', '@@ALL,-@@MUTATE');
return "";
}
#################################################################################
# find plugins directory
sub setup_dirs {
my $CURRENTDIR = $0;
chomp($CURRENTDIR);
$CURRENTDIR =~ s#[\\/]nikto.pl$##;
$CURRENTDIR = "." if $CURRENTDIR =~ /^nikto.pl$/;
# First assume we get it from CONFIGFILE
unless (defined $CONFIGFILE{'EXECDIR'}) {
if (-d "$ENV{'PWD'}/plugins") {
$CONFIGFILE{'EXECDIR'} = $ENV{'PWD'};
}
elsif (-d "$CURRENTDIR/plugins") {
$CONFIGFILE{'EXECDIR'} = $CURRENTDIR;
}
elsif (-d "./plugins") {
$CONFIGFILE{'EXECDIR'} = $CURRENTDIR;
}
else {
print STDERR "Could not work out the nikto EXECDIR, try setting it in nikto.conf\n";
exit;
}
}
unless (defined $CONFIGFILE{'PLUGINDIR'}) {
$CONFIGFILE{'PLUGINDIR'} = "$CONFIGFILE{'EXECDIR'}/plugins";
}
unless (defined $CONFIGFILE{'TEMPLATEDIR'}) {
$CONFIGFILE{'TEMPLATEDIR'} = "$CONFIGFILE{'EXECDIR'}/templates";
}
unless (defined $CONFIGFILE{'DOCUMENTDIR'}) {
$CONFIGFILE{'DOCUMENTDIR'} = "$CONFIGFILE{'EXECDIR'}/docs";
}
unless (defined $CONFIGFILE{'DBDIR'}) {
$CONFIGFILE{'DBDIR'} = "$CONFIGFILE{'EXECDIR'}/databases";
}
return;
}
######################################################################
## check_config_defined(item, default)
## Checks whether config has been set, warns and sets to a default
sub check_config_defined {
my $item = $_[0];
my $default = $_[1];
if (!defined $CONFIGFILE{$item}) {
print STDERR
"- Warning: $item is not defined in Nikto configuration, setting to \"$default\"\n";
$CONFIGFILE{$item} = $default;
}
return;
}
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