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 | |
0ecd3ba2 |
18 | $| = 1; |
19 | |
9d116dd7 |
20 | # We do not want the whole taint.t to fail |
21 | # just because Errno possibly failing. |
22 | eval { require Errno; import Errno }; |
23 | |
c9f931b8 |
24 | use vars qw($ipcsysv); # did we manage to load IPC::SysV? |
25 | |
3eeba6fb |
26 | BEGIN { |
27 | if ($^O eq 'VMS' && !defined($Config{d_setenv})) { |
28 | $ENV{PATH} = $ENV{PATH}; |
29 | $ENV{TERM} = $ENV{TERM} ne ''? $ENV{TERM} : 'dummy'; |
30 | } |
be3174d2 |
31 | if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ |
32 | && ($Config{d_shm} || $Config{d_msg})) { |
c9f931b8 |
33 | eval { require IPC::SysV }; |
34 | unless ($@) { |
35 | $ipcsysv++; |
36 | IPC::SysV->import(qw(IPC_PRIVATE IPC_RMID IPC_CREAT S_IRWXU)); |
37 | } |
b9d1c439 |
38 | } |
3eeba6fb |
39 | } |
40 | |
1e422769 |
41 | my $Is_VMS = $^O eq 'VMS'; |
68dc0745 |
42 | my $Is_MSWin32 = $^O eq 'MSWin32'; |
2986a63f |
43 | my $Is_NetWare = $^O eq 'NetWare'; |
39e571d4 |
44 | my $Is_Dos = $^O eq 'dos'; |
68dc0745 |
45 | my $Invoke_Perl = $Is_VMS ? 'MCR Sys$Disk:[]Perl.' : |
2986a63f |
46 | ($Is_MSWin32 ? '.\perl' : |
47 | ($Is_NetWare ? 'perl' : './perl')); |
c90c0ff4 |
48 | my @MoreEnv = qw/IFS CDPATH ENV BASH_ENV/; |
7bac28a0 |
49 | |
1e422769 |
50 | if ($Is_VMS) { |
7bac28a0 |
51 | my (%old, $x); |
52 | for $x ('DCL$PATH', @MoreEnv) { |
53 | ($old{$x}) = $ENV{$x} =~ /^(.*)$/ if exists $ENV{$x}; |
54 | } |
1e422769 |
55 | eval <<EndOfCleanup; |
56 | END { |
3eeba6fb |
57 | \$ENV{PATH} = '' if $Config{d_setenv}; |
1e422769 |
58 | warn "# Note: logical name 'PATH' may have been deleted\n"; |
562a7b0c |
59 | \@ENV{keys %old} = values %old; |
1e422769 |
60 | } |
61 | EndOfCleanup |
62 | } |
63 | |
64 | # Sources of taint: |
65 | # The empty tainted value, for tainting strings |
66 | my $TAINT = substr($^X, 0, 0); |
67 | # A tainted zero, useful for tainting numbers |
68 | my $TAINT0 = 0 + $TAINT; |
69 | |
70 | # This taints each argument passed. All must be lvalues. |
71 | # Side effect: It also stringifies them. :-( |
72 | sub taint_these (@) { |
73 | for (@_) { $_ .= $TAINT } |
74 | } |
75 | |
76 | # How to identify taint when you see it |
77 | sub any_tainted (@) { |
78 | not eval { join("",@_), kill 0; 1 }; |
79 | } |
80 | sub tainted ($) { |
81 | any_tainted @_; |
82 | } |
83 | sub all_tainted (@) { |
84 | for (@_) { return 0 unless tainted $_ } |
85 | 1; |
86 | } |
87 | |
88 | sub test ($$;$) { |
89 | my($serial, $boolean, $diag) = @_; |
90 | if ($boolean) { |
91 | print "ok $serial\n"; |
92 | } else { |
93 | print "not ok $serial\n"; |
94 | for (split m/^/m, $diag) { |
95 | print "# $_"; |
96 | } |
9607fc9c |
97 | print "\n" unless |
1e422769 |
98 | $diag eq '' |
99 | or substr($diag, -1) eq "\n"; |
100 | } |
101 | } |
102 | |
103 | # We need an external program to call. |
2986a63f |
104 | my $ECHO = ($Is_MSWin32 ? ".\\echo$$" : ($Is_NetWare ? "echo$$" : "./echo$$")); |
1e422769 |
105 | END { unlink $ECHO } |
106 | open PROG, "> $ECHO" or die "Can't create $ECHO: $!"; |
107 | print PROG 'print "@ARGV\n"', "\n"; |
108 | close PROG; |
109 | my $echo = "$Invoke_Perl $ECHO"; |
110 | |
65811bc3 |
111 | print "1..174\n"; |
1e422769 |
112 | |
113 | # First, let's make sure that Perl is checking the dangerous |
114 | # environment variables. Maybe they aren't set yet, so we'll |
115 | # taint them ourselves. |
116 | { |
117 | $ENV{'DCL$PATH'} = '' if $Is_VMS; |
118 | |
7bac28a0 |
119 | $ENV{PATH} = ''; |
c90c0ff4 |
120 | delete @ENV{@MoreEnv}; |
7bac28a0 |
121 | $ENV{TERM} = 'dumb'; |
122 | |
123 | test 1, eval { `$echo 1` } eq "1\n"; |
124 | |
2986a63f |
125 | if ($Is_MSWin32 || $Is_NetWare || $Is_VMS || $Is_Dos) { |
7bac28a0 |
126 | print "# Environment tainting tests skipped\n"; |
c90c0ff4 |
127 | for (2..5) { print "ok $_\n" } |
5aabfad6 |
128 | } |
129 | else { |
7bac28a0 |
130 | my @vars = ('PATH', @MoreEnv); |
131 | while (my $v = $vars[0]) { |
132 | local $ENV{$v} = $TAINT; |
133 | last if eval { `$echo 1` }; |
134 | last unless $@ =~ /^Insecure \$ENV{$v}/; |
135 | shift @vars; |
136 | } |
137 | test 2, !@vars, "\$$vars[0]"; |
c90c0ff4 |
138 | |
139 | # tainted $TERM is unsafe only if it contains metachars |
140 | local $ENV{TERM}; |
141 | $ENV{TERM} = 'e=mc2'; |
142 | test 3, eval { `$echo 1` } eq "1\n"; |
143 | $ENV{TERM} = 'e=mc2' . $TAINT; |
144 | test 4, eval { `$echo 1` } eq ''; |
145 | test 5, $@ =~ /^Insecure \$ENV{TERM}/, $@; |
5aabfad6 |
146 | } |
7bac28a0 |
147 | |
9607fc9c |
148 | my $tmp; |
2986a63f |
149 | if ($^O eq 'os2' || $^O eq 'amigaos' || $Is_MSWin32 || $Is_NetWare || $Is_Dos) { |
48c036b1 |
150 | print "# all directories are writeable\n"; |
151 | } |
152 | else { |
9607fc9c |
153 | $tmp = (grep { defined and -d and (stat _)[2] & 2 } |
099f76bb |
154 | qw(sys$scratch /tmp /var/tmp /usr/tmp), |
9607fc9c |
155 | @ENV{qw(TMP TEMP)})[0] |
156 | or print "# can't find world-writeable directory to test PATH\n"; |
157 | } |
158 | |
385588b3 |
159 | if ($tmp) { |
7bac28a0 |
160 | local $ENV{PATH} = $tmp; |
c90c0ff4 |
161 | test 6, eval { `$echo 1` } eq ''; |
162 | test 7, $@ =~ /^Insecure directory in \$ENV{PATH}/, $@; |
1e422769 |
163 | } |
164 | else { |
fac76ed7 |
165 | for (6..7) { print "ok $_ # Skipped: all directories are writeable\n" } |
1e422769 |
166 | } |
167 | |
1e422769 |
168 | if ($Is_VMS) { |
169 | $ENV{'DCL$PATH'} = $TAINT; |
c90c0ff4 |
170 | test 8, eval { `$echo 1` } eq ''; |
171 | test 9, $@ =~ /^Insecure \$ENV{DCL\$PATH}/, $@; |
9607fc9c |
172 | if ($tmp) { |
173 | $ENV{'DCL$PATH'} = $tmp; |
c90c0ff4 |
174 | test 10, eval { `$echo 1` } eq ''; |
175 | test 11, $@ =~ /^Insecure directory in \$ENV{DCL\$PATH}/, $@; |
9607fc9c |
176 | } |
177 | else { |
fac76ed7 |
178 | for (10..11) { print "ok $_ # Skipped: can't find world-writeable directory to test DCL\$PATH\n" } |
9607fc9c |
179 | } |
1e422769 |
180 | $ENV{'DCL$PATH'} = ''; |
181 | } |
182 | else { |
fac76ed7 |
183 | for (8..11) { print "ok $_ # Skipped: This is not VMS\n"; } |
1e422769 |
184 | } |
185 | } |
186 | |
187 | # Let's see that we can taint and untaint as needed. |
188 | { |
189 | my $foo = $TAINT; |
c90c0ff4 |
190 | test 12, tainted $foo; |
9607fc9c |
191 | |
192 | # That was a sanity check. If it failed, stop the insanity! |
193 | die "Taint checks don't seem to be enabled" unless tainted $foo; |
1e422769 |
194 | |
195 | $foo = "foo"; |
c90c0ff4 |
196 | test 13, not tainted $foo; |
1e422769 |
197 | |
198 | taint_these($foo); |
c90c0ff4 |
199 | test 14, tainted $foo; |
1e422769 |
200 | |
201 | my @list = 1..10; |
c90c0ff4 |
202 | test 15, not any_tainted @list; |
1e422769 |
203 | taint_these @list[1,3,5,7,9]; |
c90c0ff4 |
204 | test 16, any_tainted @list; |
205 | test 17, all_tainted @list[1,3,5,7,9]; |
206 | test 18, not any_tainted @list[0,2,4,6,8]; |
1e422769 |
207 | |
208 | ($foo) = $foo =~ /(.+)/; |
c90c0ff4 |
209 | test 19, not tainted $foo; |
1e422769 |
210 | |
211 | $foo = $1 if ('bar' . $TAINT) =~ /(.+)/; |
c90c0ff4 |
212 | test 20, not tainted $foo; |
213 | test 21, $foo eq 'bar'; |
1e422769 |
214 | |
b3eb6a9b |
215 | { |
216 | use re 'taint'; |
217 | |
218 | ($foo) = ('bar' . $TAINT) =~ /(.+)/; |
219 | test 22, tainted $foo; |
220 | test 23, $foo eq 'bar'; |
221 | |
222 | $foo = $1 if ('bar' . $TAINT) =~ /(.+)/; |
223 | test 24, tainted $foo; |
224 | test 25, $foo eq 'bar'; |
225 | } |
226 | |
227 | $foo = $1 if 'bar' =~ /(.+)$TAINT/; |
228 | test 26, tainted $foo; |
229 | test 27, $foo eq 'bar'; |
48c036b1 |
230 | |
1e422769 |
231 | my $pi = 4 * atan2(1,1) + $TAINT0; |
b3eb6a9b |
232 | test 28, tainted $pi; |
1e422769 |
233 | |
234 | ($pi) = $pi =~ /(\d+\.\d+)/; |
b3eb6a9b |
235 | test 29, not tainted $pi; |
236 | test 30, sprintf("%.5f", $pi) eq '3.14159'; |
1e422769 |
237 | } |
238 | |
239 | # How about command-line arguments? The problem is that we don't |
240 | # always get some, so we'll run another process with some. |
241 | { |
242 | my $arg = "./arg$$"; |
243 | open PROG, "> $arg" or die "Can't create $arg: $!"; |
244 | print PROG q{ |
245 | eval { join('', @ARGV), kill 0 }; |
246 | exit 0 if $@ =~ /^Insecure dependency/; |
247 | print "# Oops: \$@ was [$@]\n"; |
248 | exit 1; |
249 | }; |
250 | close PROG; |
251 | print `$Invoke_Perl "-T" $arg and some suspect arguments`; |
b3eb6a9b |
252 | test 31, !$?, "Exited with status $?"; |
1e422769 |
253 | unlink $arg; |
254 | } |
255 | |
256 | # Reading from a file should be tainted |
257 | { |
9607fc9c |
258 | my $file = './TEST'; |
b3eb6a9b |
259 | test 32, open(FILE, $file), "Couldn't open '$file': $!"; |
1e422769 |
260 | |
261 | my $block; |
262 | sysread(FILE, $block, 100); |
9607fc9c |
263 | my $line = <FILE>; |
1e422769 |
264 | close FILE; |
b3eb6a9b |
265 | test 33, tainted $block; |
266 | test 34, tainted $line; |
1e422769 |
267 | } |
268 | |
c90c0ff4 |
269 | # Globs should be forbidden, except under VMS, |
270 | # which doesn't spawn an external program. |
72b16652 |
271 | if (1 # built-in glob |
272 | or $Is_VMS) { |
b3eb6a9b |
273 | for (35..36) { print "ok $_\n"; } |
c90c0ff4 |
274 | } |
275 | else { |
7bac28a0 |
276 | my @globs = eval { <*> }; |
b3eb6a9b |
277 | test 35, @globs == 0 && $@ =~ /^Insecure dependency/; |
1e422769 |
278 | |
7bac28a0 |
279 | @globs = eval { glob '*' }; |
b3eb6a9b |
280 | test 36, @globs == 0 && $@ =~ /^Insecure dependency/; |
1e422769 |
281 | } |
282 | |
283 | # Output of commands should be tainted |
284 | { |
285 | my $foo = `$echo abc`; |
b3eb6a9b |
286 | test 37, tainted $foo; |
1e422769 |
287 | } |
288 | |
289 | # Certain system variables should be tainted |
290 | { |
b3eb6a9b |
291 | test 38, all_tainted $^X, $0; |
1e422769 |
292 | } |
293 | |
294 | # Results of matching should all be untainted |
295 | { |
296 | my $foo = "abcdefghi" . $TAINT; |
b3eb6a9b |
297 | test 39, tainted $foo; |
1e422769 |
298 | |
299 | $foo =~ /def/; |
b3eb6a9b |
300 | test 40, not any_tainted $`, $&, $'; |
1e422769 |
301 | |
302 | $foo =~ /(...)(...)(...)/; |
b3eb6a9b |
303 | test 41, not any_tainted $1, $2, $3, $+; |
1e422769 |
304 | |
305 | my @bar = $foo =~ /(...)(...)(...)/; |
b3eb6a9b |
306 | test 42, not any_tainted @bar; |
1e422769 |
307 | |
b3eb6a9b |
308 | test 43, tainted $foo; # $foo should still be tainted! |
309 | test 44, $foo eq "abcdefghi"; |
1e422769 |
310 | } |
311 | |
312 | # Operations which affect files can't use tainted data. |
313 | { |
b3eb6a9b |
314 | test 45, eval { chmod 0, $TAINT } eq '', 'chmod'; |
315 | test 46, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
316 | |
9607fc9c |
317 | # There is no feature test in $Config{} for truncate, |
318 | # so we allow for the possibility that it's missing. |
b3eb6a9b |
319 | test 47, eval { truncate 'NoSuChFiLe', $TAINT0 } eq '', 'truncate'; |
320 | test 48, $@ =~ /^(?:Insecure dependency|truncate not implemented)/, $@; |
1e422769 |
321 | |
b3eb6a9b |
322 | test 49, eval { rename '', $TAINT } eq '', 'rename'; |
323 | test 50, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
324 | |
b3eb6a9b |
325 | test 51, eval { unlink $TAINT } eq '', 'unlink'; |
326 | test 52, $@ =~ /^Insecure dependency/, $@; |
9607fc9c |
327 | |
b3eb6a9b |
328 | test 53, eval { utime $TAINT } eq '', 'utime'; |
329 | test 54, $@ =~ /^Insecure dependency/, $@; |
48c036b1 |
330 | |
1e422769 |
331 | if ($Config{d_chown}) { |
b3eb6a9b |
332 | test 55, eval { chown -1, -1, $TAINT } eq '', 'chown'; |
333 | test 56, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
334 | } |
335 | else { |
b3eb6a9b |
336 | for (55..56) { print "ok $_ # Skipped: chown() is not available\n" } |
1e422769 |
337 | } |
338 | |
339 | if ($Config{d_link}) { |
b3eb6a9b |
340 | test 57, eval { link $TAINT, '' } eq '', 'link'; |
341 | test 58, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
342 | } |
343 | else { |
b3eb6a9b |
344 | for (57..58) { print "ok $_ # Skipped: link() is not available\n" } |
1e422769 |
345 | } |
346 | |
347 | if ($Config{d_symlink}) { |
b3eb6a9b |
348 | test 59, eval { symlink $TAINT, '' } eq '', 'symlink'; |
349 | test 60, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
350 | } |
351 | else { |
b3eb6a9b |
352 | for (59..60) { print "ok $_ # Skipped: symlink() is not available\n" } |
1e422769 |
353 | } |
354 | } |
355 | |
356 | # Operations which affect directories can't use tainted data. |
357 | { |
b3eb6a9b |
358 | test 61, eval { mkdir $TAINT0, $TAINT } eq '', 'mkdir'; |
359 | test 62, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
360 | |
b3eb6a9b |
361 | test 63, eval { rmdir $TAINT } eq '', 'rmdir'; |
362 | test 64, $@ =~ /^Insecure dependency/, $@; |
9607fc9c |
363 | |
b3eb6a9b |
364 | test 65, eval { chdir $TAINT } eq '', 'chdir'; |
365 | test 66, $@ =~ /^Insecure dependency/, $@; |
48c036b1 |
366 | |
1e422769 |
367 | if ($Config{d_chroot}) { |
b3eb6a9b |
368 | test 67, eval { chroot $TAINT } eq '', 'chroot'; |
369 | test 68, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
370 | } |
371 | else { |
b3eb6a9b |
372 | for (67..68) { print "ok $_ # Skipped: chroot() is not available\n" } |
1e422769 |
373 | } |
374 | } |
375 | |
376 | # Some operations using files can't use tainted data. |
377 | { |
378 | my $foo = "imaginary library" . $TAINT; |
b3eb6a9b |
379 | test 69, eval { require $foo } eq '', 'require'; |
380 | test 70, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
381 | |
382 | my $filename = "./taintB$$"; # NB: $filename isn't tainted! |
383 | END { unlink $filename if defined $filename } |
384 | $foo = $filename . $TAINT; |
385 | unlink $filename; # in any case |
386 | |
b3eb6a9b |
387 | test 71, eval { open FOO, $foo } eq '', 'open for read'; |
388 | test 72, $@ eq '', $@; # NB: This should be allowed |
9d116dd7 |
389 | |
390 | # Try first new style but allow also old style. |
61ae2fbf |
391 | test 73, $!{ENOENT} || |
392 | $! == 2 || # File not found |
393 | ($Is_Dos && $! == 22) || |
394 | ($^O eq 'mint' && $! == 33); |
1e422769 |
395 | |
b3eb6a9b |
396 | test 74, eval { open FOO, "> $foo" } eq '', 'open for write'; |
397 | test 75, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
398 | } |
399 | |
400 | # Commands to the system can't use tainted data |
401 | { |
402 | my $foo = $TAINT; |
403 | |
404 | if ($^O eq 'amigaos') { |
b3eb6a9b |
405 | for (76..79) { print "ok $_ # Skipped: open('|') is not available\n" } |
1e422769 |
406 | } |
407 | else { |
06eaf0bc |
408 | test 76, eval { open FOO, "| x$foo" } eq '', 'popen to'; |
b3eb6a9b |
409 | test 77, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
410 | |
06eaf0bc |
411 | test 78, eval { open FOO, "x$foo |" } eq '', 'popen from'; |
b3eb6a9b |
412 | test 79, $@ =~ /^Insecure dependency/, $@; |
48c036b1 |
413 | } |
1e422769 |
414 | |
b3eb6a9b |
415 | test 80, eval { exec $TAINT } eq '', 'exec'; |
416 | test 81, $@ =~ /^Insecure dependency/, $@; |
9607fc9c |
417 | |
b3eb6a9b |
418 | test 82, eval { system $TAINT } eq '', 'system'; |
419 | test 83, $@ =~ /^Insecure dependency/, $@; |
48c036b1 |
420 | |
1e422769 |
421 | $foo = "*"; |
422 | taint_these $foo; |
423 | |
b3eb6a9b |
424 | test 84, eval { `$echo 1$foo` } eq '', 'backticks'; |
425 | test 85, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
426 | |
427 | if ($Is_VMS) { # wildcard expansion doesn't invoke shell, so is safe |
b3eb6a9b |
428 | test 86, join('', eval { glob $foo } ) ne '', 'globbing'; |
429 | test 87, $@ eq '', $@; |
1e422769 |
430 | } |
431 | else { |
b3eb6a9b |
432 | for (86..87) { print "ok $_ # Skipped: this is not VMS\n"; } |
1e422769 |
433 | } |
434 | } |
435 | |
436 | # Operations which affect processes can't use tainted data. |
437 | { |
b3eb6a9b |
438 | test 88, eval { kill 0, $TAINT } eq '', 'kill'; |
439 | test 89, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
440 | |
441 | if ($Config{d_setpgrp}) { |
b3eb6a9b |
442 | test 90, eval { setpgrp 0, $TAINT } eq '', 'setpgrp'; |
443 | test 91, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
444 | } |
445 | else { |
b3eb6a9b |
446 | for (90..91) { print "ok $_ # Skipped: setpgrp() is not available\n" } |
1e422769 |
447 | } |
448 | |
449 | if ($Config{d_setprior}) { |
b3eb6a9b |
450 | test 92, eval { setpriority 0, $TAINT, $TAINT } eq '', 'setpriority'; |
451 | test 93, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
452 | } |
453 | else { |
b3eb6a9b |
454 | for (92..93) { print "ok $_ # Skipped: setpriority() is not available\n" } |
1e422769 |
455 | } |
456 | } |
457 | |
458 | # Some miscellaneous operations can't use tainted data. |
459 | { |
460 | if ($Config{d_syscall}) { |
b3eb6a9b |
461 | test 94, eval { syscall $TAINT } eq '', 'syscall'; |
462 | test 95, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
463 | } |
464 | else { |
b3eb6a9b |
465 | for (94..95) { print "ok $_ # Skipped: syscall() is not available\n" } |
1e422769 |
466 | } |
467 | |
468 | { |
469 | my $foo = "x" x 979; |
470 | taint_these $foo; |
471 | local *FOO; |
472 | my $temp = "./taintC$$"; |
473 | END { unlink $temp } |
b3eb6a9b |
474 | test 96, open(FOO, "> $temp"), "Couldn't open $temp for write: $!"; |
1e422769 |
475 | |
b3eb6a9b |
476 | test 97, eval { ioctl FOO, $TAINT, $foo } eq '', 'ioctl'; |
477 | test 98, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
478 | |
479 | if ($Config{d_fcntl}) { |
b3eb6a9b |
480 | test 99, eval { fcntl FOO, $TAINT, $foo } eq '', 'fcntl'; |
481 | test 100, $@ =~ /^Insecure dependency/, $@; |
1e422769 |
482 | } |
483 | else { |
b3eb6a9b |
484 | for (99..100) { print "ok $_ # Skipped: fcntl() is not available\n" } |
1e422769 |
485 | } |
486 | |
487 | close FOO; |
488 | } |
489 | } |
490 | |
9607fc9c |
491 | # Some tests involving references |
1e422769 |
492 | { |
493 | my $foo = 'abc' . $TAINT; |
494 | my $fooref = \$foo; |
b3eb6a9b |
495 | test 101, not tainted $fooref; |
496 | test 102, tainted $$fooref; |
497 | test 103, tainted $foo; |
1e422769 |
498 | } |
54310121 |
499 | |
500 | # Some tests involving assignment |
501 | { |
502 | my $foo = $TAINT0; |
503 | my $bar = $foo; |
b3eb6a9b |
504 | test 104, all_tainted $foo, $bar; |
505 | test 105, tainted($foo = $bar); |
506 | test 106, tainted($bar = $bar); |
507 | test 107, tainted($bar += $bar); |
508 | test 108, tainted($bar -= $bar); |
509 | test 109, tainted($bar *= $bar); |
510 | test 110, tainted($bar++); |
511 | test 111, tainted($bar /= $bar); |
512 | test 112, tainted($bar += 0); |
513 | test 113, tainted($bar -= 2); |
514 | test 114, tainted($bar *= -1); |
515 | test 115, tainted($bar /= 1); |
516 | test 116, tainted($bar--); |
517 | test 117, $bar == 0; |
54310121 |
518 | } |
a1f49e72 |
519 | |
520 | # Test assignment and return of lists |
521 | { |
522 | my @foo = ("A", "tainted" . $TAINT, "B"); |
b3eb6a9b |
523 | test 118, not tainted $foo[0]; |
524 | test 119, tainted $foo[1]; |
525 | test 120, not tainted $foo[2]; |
a1f49e72 |
526 | my @bar = @foo; |
b3eb6a9b |
527 | test 121, not tainted $bar[0]; |
528 | test 122, tainted $bar[1]; |
529 | test 123, not tainted $bar[2]; |
a1f49e72 |
530 | my @baz = eval { "A", "tainted" . $TAINT, "B" }; |
b3eb6a9b |
531 | test 124, not tainted $baz[0]; |
532 | test 125, tainted $baz[1]; |
533 | test 126, not tainted $baz[2]; |
a1f49e72 |
534 | my @plugh = eval q[ "A", "tainted" . $TAINT, "B" ]; |
b3eb6a9b |
535 | test 127, not tainted $plugh[0]; |
536 | test 128, tainted $plugh[1]; |
537 | test 129, not tainted $plugh[2]; |
a1f49e72 |
538 | my $nautilus = sub { "A", "tainted" . $TAINT, "B" }; |
b3eb6a9b |
539 | test 130, not tainted ((&$nautilus)[0]); |
540 | test 131, tainted ((&$nautilus)[1]); |
541 | test 132, not tainted ((&$nautilus)[2]); |
a1f49e72 |
542 | my @xyzzy = &$nautilus; |
b3eb6a9b |
543 | test 133, not tainted $xyzzy[0]; |
544 | test 134, tainted $xyzzy[1]; |
545 | test 135, not tainted $xyzzy[2]; |
a1f49e72 |
546 | my $red_october = sub { return "A", "tainted" . $TAINT, "B" }; |
b3eb6a9b |
547 | test 136, not tainted ((&$red_october)[0]); |
548 | test 137, tainted ((&$red_october)[1]); |
549 | test 138, not tainted ((&$red_october)[2]); |
a1f49e72 |
550 | my @corge = &$red_october; |
b3eb6a9b |
551 | test 139, not tainted $corge[0]; |
552 | test 140, tainted $corge[1]; |
553 | test 141, not tainted $corge[2]; |
a1f49e72 |
554 | } |
fb73857a |
555 | |
556 | # Test for system/library calls returning string data of dubious origin. |
557 | { |
558 | # No reliable %Config check for getpw* |
559 | if (eval { setpwent(); getpwent(); 1 }) { |
560 | setpwent(); |
561 | my @getpwent = getpwent(); |
562 | die "getpwent: $!\n" unless (@getpwent); |
b3eb6a9b |
563 | test 142,( not tainted $getpwent[0] |
2959b6e3 |
564 | and tainted $getpwent[1] |
fb73857a |
565 | and not tainted $getpwent[2] |
566 | and not tainted $getpwent[3] |
567 | and not tainted $getpwent[4] |
568 | and not tainted $getpwent[5] |
3972a534 |
569 | and tainted $getpwent[6] # ge?cos |
fb73857a |
570 | and not tainted $getpwent[7] |
3972a534 |
571 | and tainted $getpwent[8]); # shell |
fb73857a |
572 | endpwent(); |
573 | } else { |
b3eb6a9b |
574 | for (142) { print "ok $_ # Skipped: getpwent() is not available\n" } |
fb73857a |
575 | } |
576 | |
577 | if ($Config{d_readdir}) { # pretty hard to imagine not |
578 | local(*D); |
579 | opendir(D, "op") or die "opendir: $!\n"; |
580 | my $readdir = readdir(D); |
b3eb6a9b |
581 | test 143, tainted $readdir; |
fb73857a |
582 | closedir(OP); |
583 | } else { |
b3eb6a9b |
584 | for (143) { print "ok $_ # Skipped: readdir() is not available\n" } |
fb73857a |
585 | } |
586 | |
587 | if ($Config{d_readlink} && $Config{d_symlink}) { |
588 | my $symlink = "sl$$"; |
589 | unlink($symlink); |
590 | symlink("/something/naughty", $symlink) or die "symlink: $!\n"; |
591 | my $readlink = readlink($symlink); |
b3eb6a9b |
592 | test 144, tainted $readlink; |
fb73857a |
593 | unlink($symlink); |
594 | } else { |
b3eb6a9b |
595 | for (144) { print "ok $_ # Skipped: readlink() or symlink() is not available\n"; } |
fb73857a |
596 | } |
597 | } |
598 | |
599 | # test bitwise ops (regression bug) |
600 | { |
601 | my $why = "y"; |
602 | my $j = "x" | $why; |
b3eb6a9b |
603 | test 145, not tainted $j; |
fb73857a |
604 | $why = $TAINT."y"; |
605 | $j = "x" | $why; |
b3eb6a9b |
606 | test 146, tainted $j; |
fb73857a |
607 | } |
608 | |
48c036b1 |
609 | # test target of substitution (regression bug) |
610 | { |
611 | my $why = $TAINT."y"; |
612 | $why =~ s/y/z/; |
b3eb6a9b |
613 | test 147, tainted $why; |
48c036b1 |
614 | |
615 | my $z = "[z]"; |
616 | $why =~ s/$z/zee/; |
b3eb6a9b |
617 | test 148, tainted $why; |
48c036b1 |
618 | |
619 | $why =~ s/e/'-'.$$/ge; |
b3eb6a9b |
620 | test 149, tainted $why; |
48c036b1 |
621 | } |
d929ce6f |
622 | |
623 | # test shmread |
624 | { |
c9f931b8 |
625 | unless ($ipcsysv) { |
626 | print "ok 150 # skipped: no IPC::SysV\n"; |
627 | last; |
628 | } |
be3174d2 |
629 | if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ && $Config{d_shm}) { |
b9d1c439 |
630 | no strict 'subs'; |
d929ce6f |
631 | my $sent = "foobar"; |
632 | my $rcvd; |
633 | my $size = 2000; |
c2e66d9e |
634 | my $id = shmget(IPC_PRIVATE, $size, S_IRWXU); |
635 | |
41d6edb2 |
636 | if (defined $id) { |
637 | if (shmwrite($id, $sent, 0, 60)) { |
638 | if (shmread($id, $rcvd, 0, 60)) { |
d929ce6f |
639 | substr($rcvd, index($rcvd, "\0")) = ''; |
640 | } else { |
641 | warn "# shmread failed: $!\n"; |
642 | } |
643 | } else { |
644 | warn "# shmwrite failed: $!\n"; |
645 | } |
c2e66d9e |
646 | shmctl($id, IPC_RMID, 0) or warn "# shmctl failed: $!\n"; |
41d6edb2 |
647 | } else { |
648 | warn "# shmget failed: $!\n"; |
d929ce6f |
649 | } |
650 | |
651 | if ($rcvd eq $sent) { |
652 | test 150, tainted $rcvd; |
653 | } else { |
654 | print "ok 150 # Skipped: SysV shared memory operation failed\n"; |
655 | } |
656 | } else { |
41d6edb2 |
657 | print "ok 150 # Skipped: SysV shared memory is not available\n"; |
d929ce6f |
658 | } |
659 | } |
41d6edb2 |
660 | |
661 | # test msgrcv |
662 | { |
c9f931b8 |
663 | unless ($ipcsysv) { |
664 | print "ok 151 # skipped: no IPC::SysV\n"; |
665 | last; |
666 | } |
be3174d2 |
667 | if ($Config{'extensions'} =~ /\bIPC\/SysV\b/ && $Config{d_msg}) { |
b9d1c439 |
668 | no strict 'subs'; |
41d6edb2 |
669 | my $id = msgget(IPC_PRIVATE, IPC_CREAT | S_IRWXU); |
670 | |
671 | my $sent = "message"; |
672 | my $type_sent = 1234; |
673 | my $rcvd; |
674 | my $type_rcvd; |
675 | |
676 | if (defined $id) { |
677 | if (msgsnd($id, pack("l! a*", $type_sent, $sent), 0)) { |
678 | if (msgrcv($id, $rcvd, 60, 0, 0)) { |
679 | ($type_rcvd, $rcvd) = unpack("l! a*", $rcvd); |
680 | } else { |
681 | warn "# msgrcv failed\n"; |
682 | } |
683 | } else { |
684 | warn "# msgsnd failed\n"; |
685 | } |
c2e66d9e |
686 | msgctl($id, IPC_RMID, 0) or warn "# msgctl failed: $!\n"; |
41d6edb2 |
687 | } else { |
688 | warn "# msgget failed\n"; |
689 | } |
690 | |
691 | if ($rcvd eq $sent && $type_sent == $type_rcvd) { |
692 | test 151, tainted $rcvd; |
693 | } else { |
694 | print "ok 151 # Skipped: SysV message queue operation failed\n"; |
695 | } |
696 | } else { |
697 | print "ok 151 # Skipped: SysV message queues are not available\n"; |
698 | } |
699 | } |
700 | |
3887d568 |
701 | { |
702 | # bug id 20001004.006 |
703 | |
704 | open IN, "./TEST" or warn "$0: cannot read ./TEST: $!" ; |
705 | local $/; |
706 | my $a = <IN>; |
707 | my $b = <IN>; |
708 | print "not " unless tainted($a) && tainted($b) && !defined($b); |
709 | print "ok 152\n"; |
27c9684d |
710 | close IN; |
3887d568 |
711 | } |
27c9684d |
712 | |
713 | { |
714 | # bug id 20001004.007 |
715 | |
716 | open IN, "./TEST" or warn "$0: cannot read ./TEST: $!" ; |
717 | my $a = <IN>; |
718 | |
719 | my $c = { a => 42, |
720 | b => $a }; |
721 | print "not " unless !tainted($c->{a}) && tainted($c->{b}); |
722 | print "ok 153\n"; |
723 | |
724 | my $d = { a => $a, |
725 | b => 42 }; |
726 | print "not " unless tainted($d->{a}) && !tainted($d->{b}); |
727 | print "ok 154\n"; |
728 | |
729 | my $e = { a => 42, |
730 | b => { c => $a, d => 42 } }; |
731 | print "not " unless !tainted($e->{a}) && |
732 | !tainted($e->{b}) && |
733 | tainted($e->{b}->{c}) && |
734 | !tainted($e->{b}->{d}); |
735 | print "ok 155\n"; |
736 | |
737 | close IN; |
738 | } |
739 | |
b94c04ac |
740 | { |
741 | # bug id 20010519.003 |
742 | |
248c32c0 |
743 | BEGIN { |
744 | use vars qw($has_fcntl); |
745 | eval { require Fcntl; import Fcntl; }; |
746 | unless ($@) { |
747 | $has_fcntl = 1; |
748 | } |
749 | } |
b94c04ac |
750 | |
248c32c0 |
751 | unless ($has_fcntl) { |
752 | for (156..173) { |
753 | print "ok $_ # Skip: no Fcntl (no dynaloading?)\n"; |
754 | } |
755 | } else { |
756 | my $evil = "foo" . $TAINT; |
757 | |
758 | eval { sysopen(my $ro, $evil, &O_RDONLY) }; |
759 | test 156, $@ !~ /^Insecure dependency/, $@; |
760 | |
761 | eval { sysopen(my $wo, $evil, &O_WRONLY) }; |
762 | test 157, $@ =~ /^Insecure dependency/, $@; |
763 | |
764 | eval { sysopen(my $rw, $evil, &O_RDWR) }; |
765 | test 158, $@ =~ /^Insecure dependency/, $@; |
766 | |
767 | eval { sysopen(my $ap, $evil, &O_APPEND) }; |
768 | test 159, $@ =~ /^Insecure dependency/, $@; |
769 | |
770 | eval { sysopen(my $cr, $evil, &O_CREAT) }; |
771 | test 160, $@ =~ /^Insecure dependency/, $@; |
772 | |
773 | eval { sysopen(my $tr, $evil, &O_TRUNC) }; |
774 | test 161, $@ =~ /^Insecure dependency/, $@; |
775 | |
776 | eval { sysopen(my $ro, "foo", &O_RDONLY | $evil) }; |
777 | test 162, $@ !~ /^Insecure dependency/, $@; |
778 | |
779 | eval { sysopen(my $wo, "foo", &O_WRONLY | $evil) }; |
780 | test 163, $@ =~ /^Insecure dependency/, $@; |
781 | |
782 | eval { sysopen(my $rw, "foo", &O_RDWR | $evil) }; |
783 | test 164, $@ =~ /^Insecure dependency/, $@; |
784 | |
785 | eval { sysopen(my $ap, "foo", &O_APPEND | $evil) }; |
786 | test 165, $@ =~ /^Insecure dependency/, $@; |
787 | |
788 | eval { sysopen(my $cr, "foo", &O_CREAT | $evil) }; |
789 | test 166, $@ =~ /^Insecure dependency/, $@; |
790 | |
791 | eval { sysopen(my $tr, "foo", &O_TRUNC | $evil) }; |
792 | test 167, $@ =~ /^Insecure dependency/, $@; |
793 | |
794 | eval { sysopen(my $ro, "foo", &O_RDONLY, $evil) }; |
795 | test 168, $@ !~ /^Insecure dependency/, $@; |
796 | |
797 | eval { sysopen(my $wo, "foo", &O_WRONLY, $evil) }; |
798 | test 169, $@ =~ /^Insecure dependency/, $@; |
799 | |
800 | eval { sysopen(my $rw, "foo", &O_RDWR, $evil) }; |
801 | test 170, $@ =~ /^Insecure dependency/, $@; |
802 | |
803 | eval { sysopen(my $ap, "foo", &O_APPEND, $evil) }; |
804 | test 171, $@ =~ /^Insecure dependency/, $@; |
805 | |
806 | eval { sysopen(my $cr, "foo", &O_CREAT, $evil) }; |
807 | test 172, $@ =~ /^Insecure dependency/, $@; |
808 | |
809 | eval { sysopen(my $tr, "foo", &O_TRUNC, $evil) }; |
810 | test 173, $@ =~ /^Insecure dependency/, $@; |
811 | |
812 | unlink("foo"); # not unlink($evil), because that would fail... |
813 | } |
b94c04ac |
814 | } |
815 | |
65811bc3 |
816 | { |
817 | # bug 20010526.004 |
818 | |
819 | use warnings; |
820 | |
821 | $SIG{__WARN__} = sub { print "not " }; |
822 | |
823 | sub fmi { |
824 | my $divnum = shift()/1; |
825 | sprintf("%1.1f\n", $divnum); |
826 | } |
827 | |
828 | fmi(21 . $TAINT); |
829 | fmi(37); |
830 | fmi(248); |
831 | |
832 | print "ok 174\n"; |
833 | } |
834 | |