1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
use strict;
use warnings;
use RT::Test tests => 17;
my $ticket = RT::Ticket->new(RT->SystemUser);
ok(
$ticket->Create(
Subject => 'blue lines',
Queue => 'General',
)
);
my $attacker = RT::User->new(RT->SystemUser);
ok(
$attacker->Create(
Name => 'attacker',
Password => 'foobar',
Privileged => 1,
)
);
my $template_as_attacker = RT::Template->new($attacker);
# can't create templates without ModifyTemplate
my ($ok, $msg) = $template_as_attacker->Create(
Name => 'Harmless, honest!',
Content => "\nhello ;)",
Type => 'Perl',
);
ok(!$ok, 'permission to create denied');
# permit modifying templates but they must be simple
$attacker->PrincipalObj->GrantRight(Right => 'ShowTemplate', Object => $RT::System);
$attacker->PrincipalObj->GrantRight(Right => 'ModifyTemplate', Object => $RT::System);
($ok, $msg) = $template_as_attacker->Create(
Name => 'Harmless, honest!',
Content => "\nhello ;)",
Type => 'Perl',
);
ok(!$ok, 'permission to create denied');
($ok, $msg) = $template_as_attacker->Create(
Name => 'Harmless, honest!',
Content => "\nhello ;)",
Type => 'Simple',
);
ok($ok, 'created template now that we have ModifyTemplate');
($ok, $msg) = $template_as_attacker->SetType('Perl');
ok(!$ok, 'permission to update type to Perl denied');
my $template_as_root = RT::Template->new(RT->SystemUser);
$template_as_root->Load('Harmless, honest!');
is($template_as_root->Content, "\nhello ;)");
is($template_as_root->Type, 'Simple');
$template_as_root->Parse(TicketObj => $ticket);
is($template_as_root->MIMEObj->stringify_body, "hello ;)");
# update the content to include code (even though Simple won't parse it)
($ok, $msg) = $template_as_attacker->SetContent("\nYou are { (my \$message = 'bjarq') =~ tr/a-z/n-za-m/; \$message }!");
ok($ok, 'updating Content permitted since the template is Simple');
$template_as_root = RT::Template->new(RT->SystemUser);
$template_as_root->Load('Harmless, honest!');
is($template_as_root->Content, "\nYou are { (my \$message = 'bjarq') =~ tr/a-z/n-za-m/; \$message }!");
is($template_as_root->Type, 'Simple');
$template_as_root->Parse(TicketObj => $ticket);
is($template_as_root->MIMEObj->stringify_body, "You are { (my \$message = 'bjarq') =~ tr/a-z/n-za-m/; \$message }!");
# try again, why not
($ok, $msg) = $template_as_attacker->SetType('Perl');
ok(!$ok, 'permission to update type to Perl denied');
# now root will change the template to genuine code
$template_as_root = RT::Template->new(RT->SystemUser);
$template_as_root->Load('Harmless, honest!');
$template_as_root->SetType('Perl');
$template_as_root->SetContent("\n{ scalar reverse \$Ticket->Subject }");
$template_as_root->Parse(TicketObj => $ticket);
is($template_as_root->MIMEObj->stringify_body, "senil eulb");
# see if we can update anything
$template_as_attacker = RT::Template->new($attacker);
$template_as_attacker->Load('Harmless, honest!');
($ok, $msg) = $template_as_attacker->SetContent("\nYou are { (my \$message = 'bjarq') =~ tr/a-z/n-za-m/; \$message }!");
ok(!$ok, 'updating Content forbidden since the template is Perl');
# try again just to be absolutely sure it doesn't work
$template_as_root = RT::Template->new(RT->SystemUser);
$template_as_root->Load('Harmless, honest!');
$template_as_root->SetType('Perl');
$template_as_root->SetContent("\n{ scalar reverse \$Ticket->Subject }");
$template_as_root->Parse(TicketObj => $ticket);
is($template_as_root->MIMEObj->stringify_body, "senil eulb");
|
