Commit | Line | Data |
---|---|---|
1e422769 | 1 | #!./perl -T |
2 | # | |
3 | # Taint tests by Tom Phoenix <rootbeer@teleport.com>. | |
4 | # | |
5 | # I don't claim to know all about tainting. If anyone sees | |
9607fc9c | 6 | # tests that I've missed here, please add them. But this is |
1e422769 | 7 | # better than having no tests at all, right? |
8 | # | |
9 | ||
10 | BEGIN { | |
11 | chdir 't' if -d 't'; | |
20822f61 | 12 | @INC = '../lib'; |
1e422769 | 13 | } |
14 | ||
15 | use strict; | |
16 | use Config; | |
17 | ||
9d116dd7 JH |
18 | # We do not want the whole taint.t to fail |
19 | # just because Errno possibly failing. | |
20 | eval { require Errno; import Errno }; | |
21 | ||
c9f931b8 JH |
22 | use vars qw($ipcsysv); # did we manage to load IPC::SysV? |
23 | ||
3eeba6fb CB |
24 | BEGIN { |
25 | if ($^O eq 'VMS' && !defined($Config{d_setenv})) { | |
26 | $ENV{PATH} = $ENV{PATH}; | |
27 | $ENV{TERM} = $ENV{TERM} ne ''? $ENV{TERM} : 'dummy'; | |
28 | } | |
be3174d2 GS |
29 | if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ |
30 | && ($Config{d_shm} || $Config{d_msg})) { | |
c9f931b8 JH |
31 | eval { require IPC::SysV }; |
32 | unless ($@) { | |
33 | $ipcsysv++; | |
34 | IPC::SysV->import(qw(IPC_PRIVATE IPC_RMID IPC_CREAT S_IRWXU)); | |
35 | } | |
b9d1c439 | 36 | } |
3eeba6fb CB |
37 | } |
38 | ||
1e422769 | 39 | my $Is_VMS = $^O eq 'VMS'; |
68dc0745 | 40 | my $Is_MSWin32 = $^O eq 'MSWin32'; |
39e571d4 | 41 | my $Is_Dos = $^O eq 'dos'; |
68dc0745 | 42 | my $Invoke_Perl = $Is_VMS ? 'MCR Sys$Disk:[]Perl.' : |
43 | $Is_MSWin32 ? '.\perl' : './perl'; | |
c90c0ff4 | 44 | my @MoreEnv = qw/IFS CDPATH ENV BASH_ENV/; |
7bac28a0 | 45 | |
1e422769 | 46 | if ($Is_VMS) { |
7bac28a0 | 47 | my (%old, $x); |
48 | for $x ('DCL$PATH', @MoreEnv) { | |
49 | ($old{$x}) = $ENV{$x} =~ /^(.*)$/ if exists $ENV{$x}; | |
50 | } | |
1e422769 | 51 | eval <<EndOfCleanup; |
52 | END { | |
3eeba6fb | 53 | \$ENV{PATH} = '' if $Config{d_setenv}; |
1e422769 | 54 | warn "# Note: logical name 'PATH' may have been deleted\n"; |
562a7b0c | 55 | \@ENV{keys %old} = values %old; |
1e422769 | 56 | } |
57 | EndOfCleanup | |
58 | } | |
59 | ||
60 | # Sources of taint: | |
61 | # The empty tainted value, for tainting strings | |
62 | my $TAINT = substr($^X, 0, 0); | |
63 | # A tainted zero, useful for tainting numbers | |
64 | my $TAINT0 = 0 + $TAINT; | |
65 | ||
66 | # This taints each argument passed. All must be lvalues. | |
67 | # Side effect: It also stringifies them. :-( | |
68 | sub taint_these (@) { | |
69 | for (@_) { $_ .= $TAINT } | |
70 | } | |
71 | ||
72 | # How to identify taint when you see it | |
73 | sub any_tainted (@) { | |
74 | not eval { join("",@_), kill 0; 1 }; | |
75 | } | |
76 | sub tainted ($) { | |
77 | any_tainted @_; | |
78 | } | |
79 | sub all_tainted (@) { | |
80 | for (@_) { return 0 unless tainted $_ } | |
81 | 1; | |
82 | } | |
83 | ||
84 | sub test ($$;$) { | |
85 | my($serial, $boolean, $diag) = @_; | |
86 | if ($boolean) { | |
87 | print "ok $serial\n"; | |
88 | } else { | |
89 | print "not ok $serial\n"; | |
90 | for (split m/^/m, $diag) { | |
91 | print "# $_"; | |
92 | } | |
9607fc9c | 93 | print "\n" unless |
1e422769 | 94 | $diag eq '' |
95 | or substr($diag, -1) eq "\n"; | |
96 | } | |
97 | } | |
98 | ||
99 | # We need an external program to call. | |
5aabfad6 | 100 | my $ECHO = ($Is_MSWin32 ? ".\\echo$$" : "./echo$$"); |
1e422769 | 101 | END { unlink $ECHO } |
102 | open PROG, "> $ECHO" or die "Can't create $ECHO: $!"; | |
103 | print PROG 'print "@ARGV\n"', "\n"; | |
104 | close PROG; | |
105 | my $echo = "$Invoke_Perl $ECHO"; | |
106 | ||
27c9684d | 107 | print "1..155\n"; |
1e422769 | 108 | |
109 | # First, let's make sure that Perl is checking the dangerous | |
110 | # environment variables. Maybe they aren't set yet, so we'll | |
111 | # taint them ourselves. | |
112 | { | |
113 | $ENV{'DCL$PATH'} = '' if $Is_VMS; | |
114 | ||
7bac28a0 | 115 | $ENV{PATH} = ''; |
c90c0ff4 | 116 | delete @ENV{@MoreEnv}; |
7bac28a0 | 117 | $ENV{TERM} = 'dumb'; |
118 | ||
119 | test 1, eval { `$echo 1` } eq "1\n"; | |
120 | ||
39e571d4 | 121 | if ($Is_MSWin32 || $Is_VMS || $Is_Dos) { |
7bac28a0 | 122 | print "# Environment tainting tests skipped\n"; |
c90c0ff4 | 123 | for (2..5) { print "ok $_\n" } |
5aabfad6 | 124 | } |
125 | else { | |
7bac28a0 | 126 | my @vars = ('PATH', @MoreEnv); |
127 | while (my $v = $vars[0]) { | |
128 | local $ENV{$v} = $TAINT; | |
129 | last if eval { `$echo 1` }; | |
130 | last unless $@ =~ /^Insecure \$ENV{$v}/; | |
131 | shift @vars; | |
132 | } | |
133 | test 2, !@vars, "\$$vars[0]"; | |
c90c0ff4 | 134 | |
135 | # tainted $TERM is unsafe only if it contains metachars | |
136 | local $ENV{TERM}; | |
137 | $ENV{TERM} = 'e=mc2'; | |
138 | test 3, eval { `$echo 1` } eq "1\n"; | |
139 | $ENV{TERM} = 'e=mc2' . $TAINT; | |
140 | test 4, eval { `$echo 1` } eq ''; | |
141 | test 5, $@ =~ /^Insecure \$ENV{TERM}/, $@; | |
5aabfad6 | 142 | } |
7bac28a0 | 143 | |
9607fc9c | 144 | my $tmp; |
48c036b1 GS |
145 | if ($^O eq 'os2' || $^O eq 'amigaos' || $Is_MSWin32 || $Is_Dos) { |
146 | print "# all directories are writeable\n"; | |
147 | } | |
148 | else { | |
9607fc9c | 149 | $tmp = (grep { defined and -d and (stat _)[2] & 2 } |
099f76bb | 150 | qw(sys$scratch /tmp /var/tmp /usr/tmp), |
9607fc9c | 151 | @ENV{qw(TMP TEMP)})[0] |
152 | or print "# can't find world-writeable directory to test PATH\n"; | |
153 | } | |
154 | ||
385588b3 | 155 | if ($tmp) { |
7bac28a0 | 156 | local $ENV{PATH} = $tmp; |
c90c0ff4 | 157 | test 6, eval { `$echo 1` } eq ''; |
158 | test 7, $@ =~ /^Insecure directory in \$ENV{PATH}/, $@; | |
1e422769 | 159 | } |
160 | else { | |
fac76ed7 | 161 | for (6..7) { print "ok $_ # Skipped: all directories are writeable\n" } |
1e422769 | 162 | } |
163 | ||
1e422769 | 164 | if ($Is_VMS) { |
165 | $ENV{'DCL$PATH'} = $TAINT; | |
c90c0ff4 | 166 | test 8, eval { `$echo 1` } eq ''; |
167 | test 9, $@ =~ /^Insecure \$ENV{DCL\$PATH}/, $@; | |
9607fc9c | 168 | if ($tmp) { |
169 | $ENV{'DCL$PATH'} = $tmp; | |
c90c0ff4 | 170 | test 10, eval { `$echo 1` } eq ''; |
171 | test 11, $@ =~ /^Insecure directory in \$ENV{DCL\$PATH}/, $@; | |
9607fc9c | 172 | } |
173 | else { | |
fac76ed7 | 174 | for (10..11) { print "ok $_ # Skipped: can't find world-writeable directory to test DCL\$PATH\n" } |
9607fc9c | 175 | } |
1e422769 | 176 | $ENV{'DCL$PATH'} = ''; |
177 | } | |
178 | else { | |
fac76ed7 | 179 | for (8..11) { print "ok $_ # Skipped: This is not VMS\n"; } |
1e422769 | 180 | } |
181 | } | |
182 | ||
183 | # Let's see that we can taint and untaint as needed. | |
184 | { | |
185 | my $foo = $TAINT; | |
c90c0ff4 | 186 | test 12, tainted $foo; |
9607fc9c | 187 | |
188 | # That was a sanity check. If it failed, stop the insanity! | |
189 | die "Taint checks don't seem to be enabled" unless tainted $foo; | |
1e422769 | 190 | |
191 | $foo = "foo"; | |
c90c0ff4 | 192 | test 13, not tainted $foo; |
1e422769 | 193 | |
194 | taint_these($foo); | |
c90c0ff4 | 195 | test 14, tainted $foo; |
1e422769 | 196 | |
197 | my @list = 1..10; | |
c90c0ff4 | 198 | test 15, not any_tainted @list; |
1e422769 | 199 | taint_these @list[1,3,5,7,9]; |
c90c0ff4 | 200 | test 16, any_tainted @list; |
201 | test 17, all_tainted @list[1,3,5,7,9]; | |
202 | test 18, not any_tainted @list[0,2,4,6,8]; | |
1e422769 | 203 | |
204 | ($foo) = $foo =~ /(.+)/; | |
c90c0ff4 | 205 | test 19, not tainted $foo; |
1e422769 | 206 | |
207 | $foo = $1 if ('bar' . $TAINT) =~ /(.+)/; | |
c90c0ff4 | 208 | test 20, not tainted $foo; |
209 | test 21, $foo eq 'bar'; | |
1e422769 | 210 | |
b3eb6a9b GS |
211 | { |
212 | use re 'taint'; | |
213 | ||
214 | ($foo) = ('bar' . $TAINT) =~ /(.+)/; | |
215 | test 22, tainted $foo; | |
216 | test 23, $foo eq 'bar'; | |
217 | ||
218 | $foo = $1 if ('bar' . $TAINT) =~ /(.+)/; | |
219 | test 24, tainted $foo; | |
220 | test 25, $foo eq 'bar'; | |
221 | } | |
222 | ||
223 | $foo = $1 if 'bar' =~ /(.+)$TAINT/; | |
224 | test 26, tainted $foo; | |
225 | test 27, $foo eq 'bar'; | |
48c036b1 | 226 | |
1e422769 | 227 | my $pi = 4 * atan2(1,1) + $TAINT0; |
b3eb6a9b | 228 | test 28, tainted $pi; |
1e422769 | 229 | |
230 | ($pi) = $pi =~ /(\d+\.\d+)/; | |
b3eb6a9b GS |
231 | test 29, not tainted $pi; |
232 | test 30, sprintf("%.5f", $pi) eq '3.14159'; | |
1e422769 | 233 | } |
234 | ||
235 | # How about command-line arguments? The problem is that we don't | |
236 | # always get some, so we'll run another process with some. | |
237 | { | |
238 | my $arg = "./arg$$"; | |
239 | open PROG, "> $arg" or die "Can't create $arg: $!"; | |
240 | print PROG q{ | |
241 | eval { join('', @ARGV), kill 0 }; | |
242 | exit 0 if $@ =~ /^Insecure dependency/; | |
243 | print "# Oops: \$@ was [$@]\n"; | |
244 | exit 1; | |
245 | }; | |
246 | close PROG; | |
247 | print `$Invoke_Perl "-T" $arg and some suspect arguments`; | |
b3eb6a9b | 248 | test 31, !$?, "Exited with status $?"; |
1e422769 | 249 | unlink $arg; |
250 | } | |
251 | ||
252 | # Reading from a file should be tainted | |
253 | { | |
9607fc9c | 254 | my $file = './TEST'; |
b3eb6a9b | 255 | test 32, open(FILE, $file), "Couldn't open '$file': $!"; |
1e422769 | 256 | |
257 | my $block; | |
258 | sysread(FILE, $block, 100); | |
9607fc9c | 259 | my $line = <FILE>; |
1e422769 | 260 | close FILE; |
b3eb6a9b GS |
261 | test 33, tainted $block; |
262 | test 34, tainted $line; | |
1e422769 | 263 | } |
264 | ||
c90c0ff4 | 265 | # Globs should be forbidden, except under VMS, |
266 | # which doesn't spawn an external program. | |
72b16652 GS |
267 | if (1 # built-in glob |
268 | or $Is_VMS) { | |
b3eb6a9b | 269 | for (35..36) { print "ok $_\n"; } |
c90c0ff4 | 270 | } |
271 | else { | |
7bac28a0 | 272 | my @globs = eval { <*> }; |
b3eb6a9b | 273 | test 35, @globs == 0 && $@ =~ /^Insecure dependency/; |
1e422769 | 274 | |
7bac28a0 | 275 | @globs = eval { glob '*' }; |
b3eb6a9b | 276 | test 36, @globs == 0 && $@ =~ /^Insecure dependency/; |
1e422769 | 277 | } |
278 | ||
279 | # Output of commands should be tainted | |
280 | { | |
281 | my $foo = `$echo abc`; | |
b3eb6a9b | 282 | test 37, tainted $foo; |
1e422769 | 283 | } |
284 | ||
285 | # Certain system variables should be tainted | |
286 | { | |
b3eb6a9b | 287 | test 38, all_tainted $^X, $0; |
1e422769 | 288 | } |
289 | ||
290 | # Results of matching should all be untainted | |
291 | { | |
292 | my $foo = "abcdefghi" . $TAINT; | |
b3eb6a9b | 293 | test 39, tainted $foo; |
1e422769 | 294 | |
295 | $foo =~ /def/; | |
b3eb6a9b | 296 | test 40, not any_tainted $`, $&, $'; |
1e422769 | 297 | |
298 | $foo =~ /(...)(...)(...)/; | |
b3eb6a9b | 299 | test 41, not any_tainted $1, $2, $3, $+; |
1e422769 | 300 | |
301 | my @bar = $foo =~ /(...)(...)(...)/; | |
b3eb6a9b | 302 | test 42, not any_tainted @bar; |
1e422769 | 303 | |
b3eb6a9b GS |
304 | test 43, tainted $foo; # $foo should still be tainted! |
305 | test 44, $foo eq "abcdefghi"; | |
1e422769 | 306 | } |
307 | ||
308 | # Operations which affect files can't use tainted data. | |
309 | { | |
b3eb6a9b GS |
310 | test 45, eval { chmod 0, $TAINT } eq '', 'chmod'; |
311 | test 46, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 312 | |
9607fc9c | 313 | # There is no feature test in $Config{} for truncate, |
314 | # so we allow for the possibility that it's missing. | |
b3eb6a9b GS |
315 | test 47, eval { truncate 'NoSuChFiLe', $TAINT0 } eq '', 'truncate'; |
316 | test 48, $@ =~ /^(?:Insecure dependency|truncate not implemented)/, $@; | |
1e422769 | 317 | |
b3eb6a9b GS |
318 | test 49, eval { rename '', $TAINT } eq '', 'rename'; |
319 | test 50, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 320 | |
b3eb6a9b GS |
321 | test 51, eval { unlink $TAINT } eq '', 'unlink'; |
322 | test 52, $@ =~ /^Insecure dependency/, $@; | |
9607fc9c | 323 | |
b3eb6a9b GS |
324 | test 53, eval { utime $TAINT } eq '', 'utime'; |
325 | test 54, $@ =~ /^Insecure dependency/, $@; | |
48c036b1 | 326 | |
1e422769 | 327 | if ($Config{d_chown}) { |
b3eb6a9b GS |
328 | test 55, eval { chown -1, -1, $TAINT } eq '', 'chown'; |
329 | test 56, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 330 | } |
331 | else { | |
b3eb6a9b | 332 | for (55..56) { print "ok $_ # Skipped: chown() is not available\n" } |
1e422769 | 333 | } |
334 | ||
335 | if ($Config{d_link}) { | |
b3eb6a9b GS |
336 | test 57, eval { link $TAINT, '' } eq '', 'link'; |
337 | test 58, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 338 | } |
339 | else { | |
b3eb6a9b | 340 | for (57..58) { print "ok $_ # Skipped: link() is not available\n" } |
1e422769 | 341 | } |
342 | ||
343 | if ($Config{d_symlink}) { | |
b3eb6a9b GS |
344 | test 59, eval { symlink $TAINT, '' } eq '', 'symlink'; |
345 | test 60, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 346 | } |
347 | else { | |
b3eb6a9b | 348 | for (59..60) { print "ok $_ # Skipped: symlink() is not available\n" } |
1e422769 | 349 | } |
350 | } | |
351 | ||
352 | # Operations which affect directories can't use tainted data. | |
353 | { | |
b3eb6a9b GS |
354 | test 61, eval { mkdir $TAINT0, $TAINT } eq '', 'mkdir'; |
355 | test 62, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 356 | |
b3eb6a9b GS |
357 | test 63, eval { rmdir $TAINT } eq '', 'rmdir'; |
358 | test 64, $@ =~ /^Insecure dependency/, $@; | |
9607fc9c | 359 | |
b3eb6a9b GS |
360 | test 65, eval { chdir $TAINT } eq '', 'chdir'; |
361 | test 66, $@ =~ /^Insecure dependency/, $@; | |
48c036b1 | 362 | |
1e422769 | 363 | if ($Config{d_chroot}) { |
b3eb6a9b GS |
364 | test 67, eval { chroot $TAINT } eq '', 'chroot'; |
365 | test 68, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 366 | } |
367 | else { | |
b3eb6a9b | 368 | for (67..68) { print "ok $_ # Skipped: chroot() is not available\n" } |
1e422769 | 369 | } |
370 | } | |
371 | ||
372 | # Some operations using files can't use tainted data. | |
373 | { | |
374 | my $foo = "imaginary library" . $TAINT; | |
b3eb6a9b GS |
375 | test 69, eval { require $foo } eq '', 'require'; |
376 | test 70, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 377 | |
378 | my $filename = "./taintB$$"; # NB: $filename isn't tainted! | |
379 | END { unlink $filename if defined $filename } | |
380 | $foo = $filename . $TAINT; | |
381 | unlink $filename; # in any case | |
382 | ||
b3eb6a9b GS |
383 | test 71, eval { open FOO, $foo } eq '', 'open for read'; |
384 | test 72, $@ eq '', $@; # NB: This should be allowed | |
9d116dd7 JH |
385 | |
386 | # Try first new style but allow also old style. | |
61ae2fbf JH |
387 | test 73, $!{ENOENT} || |
388 | $! == 2 || # File not found | |
389 | ($Is_Dos && $! == 22) || | |
390 | ($^O eq 'mint' && $! == 33); | |
1e422769 | 391 | |
b3eb6a9b GS |
392 | test 74, eval { open FOO, "> $foo" } eq '', 'open for write'; |
393 | test 75, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 394 | } |
395 | ||
396 | # Commands to the system can't use tainted data | |
397 | { | |
398 | my $foo = $TAINT; | |
399 | ||
400 | if ($^O eq 'amigaos') { | |
b3eb6a9b | 401 | for (76..79) { print "ok $_ # Skipped: open('|') is not available\n" } |
1e422769 | 402 | } |
403 | else { | |
06eaf0bc | 404 | test 76, eval { open FOO, "| x$foo" } eq '', 'popen to'; |
b3eb6a9b | 405 | test 77, $@ =~ /^Insecure dependency/, $@; |
1e422769 | 406 | |
06eaf0bc | 407 | test 78, eval { open FOO, "x$foo |" } eq '', 'popen from'; |
b3eb6a9b | 408 | test 79, $@ =~ /^Insecure dependency/, $@; |
48c036b1 | 409 | } |
1e422769 | 410 | |
b3eb6a9b GS |
411 | test 80, eval { exec $TAINT } eq '', 'exec'; |
412 | test 81, $@ =~ /^Insecure dependency/, $@; | |
9607fc9c | 413 | |
b3eb6a9b GS |
414 | test 82, eval { system $TAINT } eq '', 'system'; |
415 | test 83, $@ =~ /^Insecure dependency/, $@; | |
48c036b1 | 416 | |
1e422769 | 417 | $foo = "*"; |
418 | taint_these $foo; | |
419 | ||
b3eb6a9b GS |
420 | test 84, eval { `$echo 1$foo` } eq '', 'backticks'; |
421 | test 85, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 422 | |
423 | if ($Is_VMS) { # wildcard expansion doesn't invoke shell, so is safe | |
b3eb6a9b GS |
424 | test 86, join('', eval { glob $foo } ) ne '', 'globbing'; |
425 | test 87, $@ eq '', $@; | |
1e422769 | 426 | } |
427 | else { | |
b3eb6a9b | 428 | for (86..87) { print "ok $_ # Skipped: this is not VMS\n"; } |
1e422769 | 429 | } |
430 | } | |
431 | ||
432 | # Operations which affect processes can't use tainted data. | |
433 | { | |
b3eb6a9b GS |
434 | test 88, eval { kill 0, $TAINT } eq '', 'kill'; |
435 | test 89, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 436 | |
437 | if ($Config{d_setpgrp}) { | |
b3eb6a9b GS |
438 | test 90, eval { setpgrp 0, $TAINT } eq '', 'setpgrp'; |
439 | test 91, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 440 | } |
441 | else { | |
b3eb6a9b | 442 | for (90..91) { print "ok $_ # Skipped: setpgrp() is not available\n" } |
1e422769 | 443 | } |
444 | ||
445 | if ($Config{d_setprior}) { | |
b3eb6a9b GS |
446 | test 92, eval { setpriority 0, $TAINT, $TAINT } eq '', 'setpriority'; |
447 | test 93, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 448 | } |
449 | else { | |
b3eb6a9b | 450 | for (92..93) { print "ok $_ # Skipped: setpriority() is not available\n" } |
1e422769 | 451 | } |
452 | } | |
453 | ||
454 | # Some miscellaneous operations can't use tainted data. | |
455 | { | |
456 | if ($Config{d_syscall}) { | |
b3eb6a9b GS |
457 | test 94, eval { syscall $TAINT } eq '', 'syscall'; |
458 | test 95, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 459 | } |
460 | else { | |
b3eb6a9b | 461 | for (94..95) { print "ok $_ # Skipped: syscall() is not available\n" } |
1e422769 | 462 | } |
463 | ||
464 | { | |
465 | my $foo = "x" x 979; | |
466 | taint_these $foo; | |
467 | local *FOO; | |
468 | my $temp = "./taintC$$"; | |
469 | END { unlink $temp } | |
b3eb6a9b | 470 | test 96, open(FOO, "> $temp"), "Couldn't open $temp for write: $!"; |
1e422769 | 471 | |
b3eb6a9b GS |
472 | test 97, eval { ioctl FOO, $TAINT, $foo } eq '', 'ioctl'; |
473 | test 98, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 474 | |
475 | if ($Config{d_fcntl}) { | |
b3eb6a9b GS |
476 | test 99, eval { fcntl FOO, $TAINT, $foo } eq '', 'fcntl'; |
477 | test 100, $@ =~ /^Insecure dependency/, $@; | |
1e422769 | 478 | } |
479 | else { | |
b3eb6a9b | 480 | for (99..100) { print "ok $_ # Skipped: fcntl() is not available\n" } |
1e422769 | 481 | } |
482 | ||
483 | close FOO; | |
484 | } | |
485 | } | |
486 | ||
9607fc9c | 487 | # Some tests involving references |
1e422769 | 488 | { |
489 | my $foo = 'abc' . $TAINT; | |
490 | my $fooref = \$foo; | |
b3eb6a9b GS |
491 | test 101, not tainted $fooref; |
492 | test 102, tainted $$fooref; | |
493 | test 103, tainted $foo; | |
1e422769 | 494 | } |
54310121 | 495 | |
496 | # Some tests involving assignment | |
497 | { | |
498 | my $foo = $TAINT0; | |
499 | my $bar = $foo; | |
b3eb6a9b GS |
500 | test 104, all_tainted $foo, $bar; |
501 | test 105, tainted($foo = $bar); | |
502 | test 106, tainted($bar = $bar); | |
503 | test 107, tainted($bar += $bar); | |
504 | test 108, tainted($bar -= $bar); | |
505 | test 109, tainted($bar *= $bar); | |
506 | test 110, tainted($bar++); | |
507 | test 111, tainted($bar /= $bar); | |
508 | test 112, tainted($bar += 0); | |
509 | test 113, tainted($bar -= 2); | |
510 | test 114, tainted($bar *= -1); | |
511 | test 115, tainted($bar /= 1); | |
512 | test 116, tainted($bar--); | |
513 | test 117, $bar == 0; | |
54310121 | 514 | } |
a1f49e72 CS |
515 | |
516 | # Test assignment and return of lists | |
517 | { | |
518 | my @foo = ("A", "tainted" . $TAINT, "B"); | |
b3eb6a9b GS |
519 | test 118, not tainted $foo[0]; |
520 | test 119, tainted $foo[1]; | |
521 | test 120, not tainted $foo[2]; | |
a1f49e72 | 522 | my @bar = @foo; |
b3eb6a9b GS |
523 | test 121, not tainted $bar[0]; |
524 | test 122, tainted $bar[1]; | |
525 | test 123, not tainted $bar[2]; | |
a1f49e72 | 526 | my @baz = eval { "A", "tainted" . $TAINT, "B" }; |
b3eb6a9b GS |
527 | test 124, not tainted $baz[0]; |
528 | test 125, tainted $baz[1]; | |
529 | test 126, not tainted $baz[2]; | |
a1f49e72 | 530 | my @plugh = eval q[ "A", "tainted" . $TAINT, "B" ]; |
b3eb6a9b GS |
531 | test 127, not tainted $plugh[0]; |
532 | test 128, tainted $plugh[1]; | |
533 | test 129, not tainted $plugh[2]; | |
a1f49e72 | 534 | my $nautilus = sub { "A", "tainted" . $TAINT, "B" }; |
b3eb6a9b GS |
535 | test 130, not tainted ((&$nautilus)[0]); |
536 | test 131, tainted ((&$nautilus)[1]); | |
537 | test 132, not tainted ((&$nautilus)[2]); | |
a1f49e72 | 538 | my @xyzzy = &$nautilus; |
b3eb6a9b GS |
539 | test 133, not tainted $xyzzy[0]; |
540 | test 134, tainted $xyzzy[1]; | |
541 | test 135, not tainted $xyzzy[2]; | |
a1f49e72 | 542 | my $red_october = sub { return "A", "tainted" . $TAINT, "B" }; |
b3eb6a9b GS |
543 | test 136, not tainted ((&$red_october)[0]); |
544 | test 137, tainted ((&$red_october)[1]); | |
545 | test 138, not tainted ((&$red_october)[2]); | |
a1f49e72 | 546 | my @corge = &$red_october; |
b3eb6a9b GS |
547 | test 139, not tainted $corge[0]; |
548 | test 140, tainted $corge[1]; | |
549 | test 141, not tainted $corge[2]; | |
a1f49e72 | 550 | } |
fb73857a | 551 | |
552 | # Test for system/library calls returning string data of dubious origin. | |
553 | { | |
554 | # No reliable %Config check for getpw* | |
555 | if (eval { setpwent(); getpwent(); 1 }) { | |
556 | setpwent(); | |
557 | my @getpwent = getpwent(); | |
558 | die "getpwent: $!\n" unless (@getpwent); | |
b3eb6a9b | 559 | test 142,( not tainted $getpwent[0] |
2959b6e3 | 560 | and tainted $getpwent[1] |
fb73857a | 561 | and not tainted $getpwent[2] |
562 | and not tainted $getpwent[3] | |
563 | and not tainted $getpwent[4] | |
564 | and not tainted $getpwent[5] | |
3972a534 | 565 | and tainted $getpwent[6] # ge?cos |
fb73857a | 566 | and not tainted $getpwent[7] |
3972a534 | 567 | and tainted $getpwent[8]); # shell |
fb73857a | 568 | endpwent(); |
569 | } else { | |
b3eb6a9b | 570 | for (142) { print "ok $_ # Skipped: getpwent() is not available\n" } |
fb73857a | 571 | } |
572 | ||
573 | if ($Config{d_readdir}) { # pretty hard to imagine not | |
574 | local(*D); | |
575 | opendir(D, "op") or die "opendir: $!\n"; | |
576 | my $readdir = readdir(D); | |
b3eb6a9b | 577 | test 143, tainted $readdir; |
fb73857a | 578 | closedir(OP); |
579 | } else { | |
b3eb6a9b | 580 | for (143) { print "ok $_ # Skipped: readdir() is not available\n" } |
fb73857a | 581 | } |
582 | ||
583 | if ($Config{d_readlink} && $Config{d_symlink}) { | |
584 | my $symlink = "sl$$"; | |
585 | unlink($symlink); | |
586 | symlink("/something/naughty", $symlink) or die "symlink: $!\n"; | |
587 | my $readlink = readlink($symlink); | |
b3eb6a9b | 588 | test 144, tainted $readlink; |
fb73857a | 589 | unlink($symlink); |
590 | } else { | |
b3eb6a9b | 591 | for (144) { print "ok $_ # Skipped: readlink() or symlink() is not available\n"; } |
fb73857a | 592 | } |
593 | } | |
594 | ||
595 | # test bitwise ops (regression bug) | |
596 | { | |
597 | my $why = "y"; | |
598 | my $j = "x" | $why; | |
b3eb6a9b | 599 | test 145, not tainted $j; |
fb73857a | 600 | $why = $TAINT."y"; |
601 | $j = "x" | $why; | |
b3eb6a9b | 602 | test 146, tainted $j; |
fb73857a | 603 | } |
604 | ||
48c036b1 GS |
605 | # test target of substitution (regression bug) |
606 | { | |
607 | my $why = $TAINT."y"; | |
608 | $why =~ s/y/z/; | |
b3eb6a9b | 609 | test 147, tainted $why; |
48c036b1 GS |
610 | |
611 | my $z = "[z]"; | |
612 | $why =~ s/$z/zee/; | |
b3eb6a9b | 613 | test 148, tainted $why; |
48c036b1 GS |
614 | |
615 | $why =~ s/e/'-'.$$/ge; | |
b3eb6a9b | 616 | test 149, tainted $why; |
48c036b1 | 617 | } |
d929ce6f JH |
618 | |
619 | # test shmread | |
620 | { | |
c9f931b8 JH |
621 | unless ($ipcsysv) { |
622 | print "ok 150 # skipped: no IPC::SysV\n"; | |
623 | last; | |
624 | } | |
be3174d2 | 625 | if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ && $Config{d_shm}) { |
b9d1c439 | 626 | no strict 'subs'; |
d929ce6f JH |
627 | my $sent = "foobar"; |
628 | my $rcvd; | |
629 | my $size = 2000; | |
c2e66d9e GS |
630 | my $id = shmget(IPC_PRIVATE, $size, S_IRWXU); |
631 | ||
41d6edb2 JH |
632 | if (defined $id) { |
633 | if (shmwrite($id, $sent, 0, 60)) { | |
634 | if (shmread($id, $rcvd, 0, 60)) { | |
d929ce6f JH |
635 | substr($rcvd, index($rcvd, "\0")) = ''; |
636 | } else { | |
637 | warn "# shmread failed: $!\n"; | |
638 | } | |
639 | } else { | |
640 | warn "# shmwrite failed: $!\n"; | |
641 | } | |
c2e66d9e | 642 | shmctl($id, IPC_RMID, 0) or warn "# shmctl failed: $!\n"; |
41d6edb2 JH |
643 | } else { |
644 | warn "# shmget failed: $!\n"; | |
d929ce6f JH |
645 | } |
646 | ||
647 | if ($rcvd eq $sent) { | |
648 | test 150, tainted $rcvd; | |
649 | } else { | |
650 | print "ok 150 # Skipped: SysV shared memory operation failed\n"; | |
651 | } | |
652 | } else { | |
41d6edb2 | 653 | print "ok 150 # Skipped: SysV shared memory is not available\n"; |
d929ce6f JH |
654 | } |
655 | } | |
41d6edb2 JH |
656 | |
657 | # test msgrcv | |
658 | { | |
c9f931b8 JH |
659 | unless ($ipcsysv) { |
660 | print "ok 151 # skipped: no IPC::SysV\n"; | |
661 | last; | |
662 | } | |
be3174d2 | 663 | if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ && $Config{d_msg}) { |
b9d1c439 | 664 | no strict 'subs'; |
41d6edb2 JH |
665 | my $id = msgget(IPC_PRIVATE, IPC_CREAT | S_IRWXU); |
666 | ||
667 | my $sent = "message"; | |
668 | my $type_sent = 1234; | |
669 | my $rcvd; | |
670 | my $type_rcvd; | |
671 | ||
672 | if (defined $id) { | |
673 | if (msgsnd($id, pack("l! a*", $type_sent, $sent), 0)) { | |
674 | if (msgrcv($id, $rcvd, 60, 0, 0)) { | |
675 | ($type_rcvd, $rcvd) = unpack("l! a*", $rcvd); | |
676 | } else { | |
677 | warn "# msgrcv failed\n"; | |
678 | } | |
679 | } else { | |
680 | warn "# msgsnd failed\n"; | |
681 | } | |
c2e66d9e | 682 | msgctl($id, IPC_RMID, 0) or warn "# msgctl failed: $!\n"; |
41d6edb2 JH |
683 | } else { |
684 | warn "# msgget failed\n"; | |
685 | } | |
686 | ||
687 | if ($rcvd eq $sent && $type_sent == $type_rcvd) { | |
688 | test 151, tainted $rcvd; | |
689 | } else { | |
690 | print "ok 151 # Skipped: SysV message queue operation failed\n"; | |
691 | } | |
692 | } else { | |
693 | print "ok 151 # Skipped: SysV message queues are not available\n"; | |
694 | } | |
695 | } | |
696 | ||
3887d568 AP |
697 | { |
698 | # bug id 20001004.006 | |
699 | ||
700 | open IN, "./TEST" or warn "$0: cannot read ./TEST: $!" ; | |
701 | local $/; | |
702 | my $a = <IN>; | |
703 | my $b = <IN>; | |
704 | print "not " unless tainted($a) && tainted($b) && !defined($b); | |
705 | print "ok 152\n"; | |
27c9684d | 706 | close IN; |
3887d568 | 707 | } |
27c9684d AP |
708 | |
709 | { | |
710 | # bug id 20001004.007 | |
711 | ||
712 | open IN, "./TEST" or warn "$0: cannot read ./TEST: $!" ; | |
713 | my $a = <IN>; | |
714 | ||
715 | my $c = { a => 42, | |
716 | b => $a }; | |
717 | print "not " unless !tainted($c->{a}) && tainted($c->{b}); | |
718 | print "ok 153\n"; | |
719 | ||
720 | my $d = { a => $a, | |
721 | b => 42 }; | |
722 | print "not " unless tainted($d->{a}) && !tainted($d->{b}); | |
723 | print "ok 154\n"; | |
724 | ||
725 | my $e = { a => 42, | |
726 | b => { c => $a, d => 42 } }; | |
727 | print "not " unless !tainted($e->{a}) && | |
728 | !tainted($e->{b}) && | |
729 | tainted($e->{b}->{c}) && | |
730 | !tainted($e->{b}->{d}); | |
731 | print "ok 155\n"; | |
732 | ||
733 | close IN; | |
734 | } | |
735 |