| 1 | #VERSION,2.01 |
|---|
| 2 | # $Id: nikto_tests.plugin 79 2008-09-21 15:34:39Z deity $ |
|---|
| 3 | ############################################################################### |
|---|
| 4 | # Copyright (C) 2007 CIRT, Inc. |
|---|
| 5 | # |
|---|
| 6 | # This program is free software; you can redistribute it and/or |
|---|
| 7 | # modify it under the terms of the GNU General Public License |
|---|
| 8 | # as published by the Free Software Foundation; version 2 |
|---|
| 9 | # of the License only. |
|---|
| 10 | # |
|---|
| 11 | # This program is distributed in the hope that it will be useful, |
|---|
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|---|
| 14 | # GNU General Public License for more details. |
|---|
| 15 | # |
|---|
| 16 | # You should have received a copy of the GNU General Public License |
|---|
| 17 | # along with this program; if not, write to the Free Software |
|---|
| 18 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
|---|
| 19 | ############################################################################### |
|---|
| 20 | # PURPOSE: |
|---|
| 21 | # Perform the full database of nikto tests against a target |
|---|
| 22 | ############################################################################### |
|---|
| 23 | sub nikto_tests_init { |
|---|
| 24 | my $id = { name => "Tests", |
|---|
| 25 | full_name => "Nikto Tests", |
|---|
| 26 | author => "Sullo, Deity", |
|---|
| 27 | description => "Test host with the standard Nikto tests", |
|---|
| 28 | copyright => "2008 CIRT Inc.", |
|---|
| 29 | scan_method => \&nikto_tests, |
|---|
| 30 | scan_weight => 99, |
|---|
| 31 | }; |
|---|
| 32 | return $id; |
|---|
| 33 | } |
|---|
| 34 | |
|---|
| 35 | sub nikto_tests { |
|---|
| 36 | my ($mark, $parameters) = @_; |
|---|
| 37 | |
|---|
| 38 | # this is the actual the looped code for all the checks |
|---|
| 39 | foreach my $CHECKID (sort keys %TESTS) { |
|---|
| 40 | if ($CHECKID >= 500000) { next; } # skip TESTS added manually during run (for reports) |
|---|
| 41 | # replace variables in the uri |
|---|
| 42 | my @urilist = change_variables($TESTS{$CHECKID}{'uri'}); |
|---|
| 43 | |
|---|
| 44 | # Now repeat for each uri |
|---|
| 45 | foreach my $uri (@urilist) { |
|---|
| 46 | (my $RES, $CONTENT) = |
|---|
| 47 | fetch($uri, $TESTS{$CHECKID}{'method'}, $TESTS{$CHECKID}{'data'}, $CHECKID); |
|---|
| 48 | nprint("- $RES for $TESTS{$CHECKID}{'method'}:\t$request{'whisker'}{'uri'}", "v"); |
|---|
| 49 | |
|---|
| 50 | # Check for errors to reduce false positives |
|---|
| 51 | if (defined $result{'whisker'}->{'error'}) { |
|---|
| 52 | |
|---|
| 53 | # An error occured, show in verbose mode and skip |
|---|
| 54 | # Try it again before we report it fully |
|---|
| 55 | sleep(1); |
|---|
| 56 | ($RES, $CONTENT) = |
|---|
| 57 | fetch($uri, $TESTS{$CHECKID}{'method'}, $TESTS{$CHECKID}{'data'}, $CHECKID); |
|---|
| 58 | nprint("- $RES for $TESTS{$CHECKID}{'method'}:\t$request{'whisker'}{'uri'}", "v"); |
|---|
| 59 | |
|---|
| 60 | if (defined $result{'whisker'}->{'error'}) { |
|---|
| 61 | nprint("+ ERROR: $uri returned an error: $result{'whisker'}{'error'}\n"); |
|---|
| 62 | next; |
|---|
| 63 | } |
|---|
| 64 | } |
|---|
| 65 | $NIKTO{'resp_counts'}{$RES}{'total'}++; |
|---|
| 66 | |
|---|
| 67 | # do auth/redir first, independent of test pass/fail |
|---|
| 68 | if ($RES eq 401) { |
|---|
| 69 | $result{'www-authenticate'} =~ /realm=\"(.+)\"/; |
|---|
| 70 | my $R = $1; |
|---|
| 71 | if ($R eq '') { $R = $result{'www-authenticate'} } |
|---|
| 72 | do_auth($request, $result, $mark); |
|---|
| 73 | nprint("+ $uri - Requires Authentication for realm '$R'") if $CLI{'display'} =~ /4/; |
|---|
| 74 | $RES = $result{'whisker'}->{'code'}; |
|---|
| 75 | $CONTENT = $result{'whisker'}->{'data'}; |
|---|
| 76 | } |
|---|
| 77 | elsif ($RES eq 200) { |
|---|
| 78 | nprint("+ $uri - 200/OK Response could be $TESTS{$CHECKID}{'message'}") |
|---|
| 79 | if $CLI{'display'} =~ /3/; |
|---|
| 80 | } |
|---|
| 81 | elsif ($RES =~ /30([0-3]|7)/) { |
|---|
| 82 | nprint( "+ $uri - Redirects ($RES) to " |
|---|
| 83 | . $result{'location'} |
|---|
| 84 | . " , $TESTS{$CHECKID}{'message'}") |
|---|
| 85 | if $CLI{'display'} =~ /1/; |
|---|
| 86 | } |
|---|
| 87 | |
|---|
| 88 | my $m1_method = my $m1o_method = my $m1a_method = my $f2_method = my $f1_method = |
|---|
| 89 | "content"; |
|---|
| 90 | my $positive = 0; |
|---|
| 91 | |
|---|
| 92 | # how to check each conditional |
|---|
| 93 | if ($TESTS{$CHECKID}{'match_1'} =~ /^[0-9]{3}$/) { $m1_method = "code"; } |
|---|
| 94 | if ($TESTS{$CHECKID}{'match_1_or'} =~ /^[0-9]{3}$/) { $m1o_method = "code"; } |
|---|
| 95 | if ($TESTS{$CHECKID}{'match_1_and'} =~ /^[0-9]{3}$/) { $m1a_method = "code"; } |
|---|
| 96 | if ($TESTS{$CHECKID}{'fail_1'} =~ /^[0-9]{3}$/) { $f1_method = "code"; } |
|---|
| 97 | if ($TESTS{$CHECKID}{'fail_2'} =~ /^[0-9]{3}$/) { $f2_method = "code"; } |
|---|
| 98 | |
|---|
| 99 | # basic match for positive result |
|---|
| 100 | if ($m1_method eq "content") { |
|---|
| 101 | if ($CONTENT =~ /$TESTS{$CHECKID}{'match_1'}/) { |
|---|
| 102 | $positive = 1; |
|---|
| 103 | } |
|---|
| 104 | } |
|---|
| 105 | else { |
|---|
| 106 | if (($RES eq $TESTS{$CHECKID}{'match_1'}) || ($RES eq $FoF{'okay'}{'response'})) { |
|---|
| 107 | $positive = 1; |
|---|
| 108 | } |
|---|
| 109 | } |
|---|
| 110 | |
|---|
| 111 | # no match, check optional match |
|---|
| 112 | if ((!$positive) && ($TESTS{$CHECKID}{'match_1_or'} ne "")) { |
|---|
| 113 | if ($m1o_method eq "content") { |
|---|
| 114 | if ($CONTENT =~ /$TESTS{$CHECKID}{'match_1_or'}/) { |
|---|
| 115 | $positive = 1; |
|---|
| 116 | } |
|---|
| 117 | } |
|---|
| 118 | else { |
|---|
| 119 | if ( ($RES eq $TESTS{$CHECKID}{'match_1_or'}) |
|---|
| 120 | || ($RES eq $FoF{'okay'}{'response'})) { |
|---|
| 121 | $positive = 1; |
|---|
| 122 | } |
|---|
| 123 | } |
|---|
| 124 | } |
|---|
| 125 | |
|---|
| 126 | # matched on something, check fails/ands |
|---|
| 127 | if ($positive) { |
|---|
| 128 | if ($TESTS{$CHECKID}{'fail_1'} ne "") { |
|---|
| 129 | if ($f1_method eq "content") { |
|---|
| 130 | if ($CONTENT =~ /$TESTS{$CHECKID}{'fail_1'}/) { next; } |
|---|
| 131 | } |
|---|
| 132 | else { |
|---|
| 133 | if ($RES eq $TESTS{$CHECKID}{'fail_1'}) { next; } |
|---|
| 134 | } |
|---|
| 135 | } |
|---|
| 136 | if ($TESTS{$CHECKID}{'fail_2'} ne "") { |
|---|
| 137 | if ($f2_method eq "content") { |
|---|
| 138 | if ($CONTENT =~ /$TESTS{$CHECKID}{'fail_2'}/) { next; } |
|---|
| 139 | } |
|---|
| 140 | else { |
|---|
| 141 | if ($RES eq $TESTS{$CHECKID}{'fail_2'}) { next; } |
|---|
| 142 | } |
|---|
| 143 | } |
|---|
| 144 | if ($TESTS{$CHECKID}{'match_1_and'} ne "") { |
|---|
| 145 | if ($m1a_method eq "content") { |
|---|
| 146 | if ($CONTENT !~ /$TESTS{$CHECKID}{'match_1_and'}/) { next; } |
|---|
| 147 | } |
|---|
| 148 | else { |
|---|
| 149 | if ($RES ne $TESTS{$CHECKID}{'match_1_and'}) { next; } |
|---|
| 150 | } |
|---|
| 151 | } |
|---|
| 152 | |
|---|
| 153 | # if it's an index.php, check for normal /index.php to see if it's a FP |
|---|
| 154 | if ($uri =~ /^\/index.php\?/) { |
|---|
| 155 | my $CONTENT = rm_active_content($CONTENT, $uri); |
|---|
| 156 | if (LW2::md4($CONTENT) eq $FoF{'index.php'}{'match'}) { next; } |
|---|
| 157 | } |
|---|
| 158 | |
|---|
| 159 | # lastly check for a false positive based on file extension or type |
|---|
| 160 | if (($m1_method eq "code") || ($m1o_method eq "code")) { |
|---|
| 161 | if (is_404($request{'whisker'}{'uri'}, $CONTENT, $RES)) { next; } |
|---|
| 162 | } |
|---|
| 163 | |
|---|
| 164 | $TESTS{$CHECKID}{'osvdb'} =~ s/\s+/ OSVDB\-/g; |
|---|
| 165 | add_vulnerability($mark, |
|---|
| 166 | "$request{'whisker'}{'uri'}: $TESTS{$CHECKID}{'message'}", |
|---|
| 167 | $CHECKID, |
|---|
| 168 | $TESTS{$CHECKID}{'osvdb'}, |
|---|
| 169 | $TESTS{$CHECKID}{'method'}, |
|---|
| 170 | $uri |
|---|
| 171 | ); |
|---|
| 172 | } |
|---|
| 173 | } |
|---|
| 174 | } # end check loop |
|---|
| 175 | |
|---|
| 176 | # Perform mutation tests |
|---|
| 177 | if ($parameters->{'passfiles'}) { |
|---|
| 178 | passchecks($mark); |
|---|
| 179 | } |
|---|
| 180 | if ($parameters->{'all'}) { |
|---|
| 181 | allchecks($mark); |
|---|
| 182 | } |
|---|
| 183 | |
|---|
| 184 | return; |
|---|
| 185 | } |
|---|
| 186 | |
|---|
| 187 | sub passchecks { |
|---|
| 188 | my ($mark) = @_; |
|---|
| 189 | my @DIRS = (split(/ /, $VARIABLES{"\@PASSWORDDIRS"})); |
|---|
| 190 | my @PFILES = (split(/ /, $VARIABLES{"\@PASSWORDFILES"})); |
|---|
| 191 | my @EXTS = qw(asp bak dat data dbc dbf exe htm html htx ini lst txt xml php php3 phtml); |
|---|
| 192 | |
|---|
| 193 | nprint("- Performing passfiles mutation", "v"); |
|---|
| 194 | |
|---|
| 195 | foreach my $dir (@DIRS) { |
|---|
| 196 | foreach my $file (@PFILES) { |
|---|
| 197 | next if ($file eq ""); |
|---|
| 198 | |
|---|
| 199 | # dir/file |
|---|
| 200 | testfile($mark, "$dir$file", "passfiles", "299998"); |
|---|
| 201 | |
|---|
| 202 | foreach my $ext (@EXTS) { |
|---|
| 203 | |
|---|
| 204 | # dir/file.ext |
|---|
| 205 | testfile($mark, "$dir$file.$ext", "passfiles", "299998"); |
|---|
| 206 | |
|---|
| 207 | foreach my $cgi (@CGIDIRS) { |
|---|
| 208 | |
|---|
| 209 | # dir/file.ext |
|---|
| 210 | testfile($mark, "$cgi$dir$file.$ext", "passfiles", "299998"); |
|---|
| 211 | |
|---|
| 212 | # dir/file |
|---|
| 213 | testfile($mark, "$cgi$dir$file", "passfiles", "299998"); |
|---|
| 214 | } |
|---|
| 215 | } |
|---|
| 216 | } |
|---|
| 217 | } |
|---|
| 218 | } |
|---|
| 219 | |
|---|
| 220 | sub allchecks { |
|---|
| 221 | my ($mark) = @_; |
|---|
| 222 | |
|---|
| 223 | # Hashes to temporarily store files/dirs in |
|---|
| 224 | # We're using hashes to ensure that duplicates are removed |
|---|
| 225 | my (%FILES, %DIRS); |
|---|
| 226 | |
|---|
| 227 | # build the arrays |
|---|
| 228 | nprint("- Loading root level files", "v"); |
|---|
| 229 | foreach my $checkid (keys %TESTS) { |
|---|
| 230 | |
|---|
| 231 | # Expand out vars so we get full matches |
|---|
| 232 | my @uris = change_variables($TESTS{$checkid}{'uri'}); |
|---|
| 233 | |
|---|
| 234 | foreach my $uri (@uris) { |
|---|
| 235 | my $dir = LW2::uri_get_dir($uri); |
|---|
| 236 | my $file = $uri; |
|---|
| 237 | |
|---|
| 238 | if ($dir ne "") { |
|---|
| 239 | $DIRS{$dir} = ""; |
|---|
| 240 | $dir =~ s/([^a-zA-Z0-9])/\\$1/g; |
|---|
| 241 | $file =~ s/$dir//; |
|---|
| 242 | } |
|---|
| 243 | if (($file ne "") && ($file !~ /^\?/)) { |
|---|
| 244 | $FILES{$file} = ""; |
|---|
| 245 | } |
|---|
| 246 | } |
|---|
| 247 | } |
|---|
| 248 | |
|---|
| 249 | # Now do a check for each item - just check the return status, nothing else |
|---|
| 250 | foreach my $dir (keys %DIRS) { |
|---|
| 251 | foreach my $file (keys %FILES) { |
|---|
| 252 | testfile($mark, "$dir$file", "all checks", 299999); |
|---|
| 253 | } |
|---|
| 254 | } |
|---|
| 255 | } |
|---|
| 256 | |
|---|
| 257 | sub testfile { |
|---|
| 258 | my ($mark, $uri, $name, $tid) = @_; |
|---|
| 259 | my ($result, $contents, $error) = nfetch($mark, "$uri", "GET", "", "", "", "Tests: $name"); |
|---|
| 260 | nprint("- $result for $uri", "v"); |
|---|
| 261 | if ($error) { |
|---|
| 262 | nprint("+ ERROR: $uri returned an error: $error"); |
|---|
| 263 | return; |
|---|
| 264 | } |
|---|
| 265 | if ($result == 200) { |
|---|
| 266 | add_vulnerability($mark, "$uri: file found during $name mutation", "$tid", "0", "GET"); |
|---|
| 267 | } |
|---|
| 268 | } |
|---|
| 269 | |
|---|
| 270 | 1; |
|---|