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Fix phase 2 and 3 audit logging in case of internal redirect #255

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Fix phase 2 and 3 audit logging in case of internal redirect #255

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d90eed5
Tests: Add test cases for all phases in custom error page test
mlevogiannis Nov 23, 2021
02249da
Fix phase 2 and 3 audit logging in case of internal redirect
mlevogiannis Nov 24, 2021
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Tests: Add test cases for all phases in custom error page test
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@mlevogiannis
mlevogiannis committed Jun 3, 2024
commit d90eed54f3877c6b0f90d62ca03f65eded46be64
82 changes: 51 additions & 31 deletions tests/modsecurity-config-custom-error-page.t
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Original file line number Diff line number Diff line change
Expand Up @@ -55,15 +55,19 @@ http {
error_page 403 /403.html;

location /403.html {
root %%TESTDIR%%/http;
alias %%TESTDIR%%/403.html;
internal;
}

location / {
modsecurity on;
modsecurity_rules '
SecRuleEngine On
SecRule ARGS "@streq root" "id:10,phase:1,auditlog,status:403,deny"
SecResponseBodyAccess On
SecRule ARGS:phase1 "@streq BAD" "id:10,phase:1,auditlog,status:403,deny"
SecRule ARGS:phase2 "@streq BAD" "id:11,phase:2,auditlog,status:403,deny"
SecRule ARGS:phase3 "@streq BAD" "id:12,phase:3,auditlog,status:403,deny"
SecRule ARGS:phase4 "@streq BAD" "id:13,phase:4,auditlog,status:403,drop"
SecDebugLog %%TESTDIR%%/auditlog-debug-local.txt
SecDebugLogLevel 9
SecAuditEngine RelevantOnly
Expand All @@ -82,7 +86,11 @@ http {
modsecurity on;
modsecurity_rules '
SecRuleEngine On
SecRule ARGS "@streq root" "id:10,phase:1,auditlog,status:403,deny"
SecResponseBodyAccess On
SecRule ARGS:phase1 "@streq BAD" "id:10,phase:1,auditlog,status:403,deny"
SecRule ARGS:phase2 "@streq BAD" "id:11,phase:2,auditlog,status:403,deny"
SecRule ARGS:phase3 "@streq BAD" "id:12,phase:3,auditlog,status:403,deny"
SecRule ARGS:phase4 "@streq BAD" "id:13,phase:4,auditlog,status:403,drop"
SecDebugLog %%TESTDIR%%/auditlog-debug-global.txt
SecDebugLogLevel 9
SecAuditEngine RelevantOnly
Expand All @@ -96,7 +104,7 @@ http {

location /403.html {
modsecurity off;
root %%TESTDIR%%/http;
alias %%TESTDIR%%/403.html;
internal;
}

Expand All @@ -107,31 +115,28 @@ http {
EOF

my $index_txt = "This is the index page.";
my $custom_txt = "This is a custom error page.";
my $error_txt = "This is a custom error page.";

$t->write_file("/index.html", $index_txt);
mkdir($t->testdir() . '/http');
$t->write_file("/http/403.html", $custom_txt);
$t->write_file("/403.html", $error_txt);

$t->todo_alerts();
$t->run();
$t->plan(10);
$t->plan(32);

###############################################################################

my $d = $t->testdir();

my $t1;
my $t2;
my $t3;
my $t4;

# Performing requests to a server with ModSecurity enabled at location context
$t1 = http_get_host('s1', '/index.html?what=root');
$t2 = http_get_host('s1', '/index.html?what=other');

# Performing requests to a server with ModSecurity enabled at server context
$t3 = http_get_host('s2', '/index.html?what=root');
$t4 = http_get_host('s2', '/index.html?what=other');
like(http_get_host('s1', '/?phase1=BAD'), qr/$error_txt/, 'location context, phase 1, error page');
like(http_get_host('s1', '/?phase1=GOOD'), qr/$index_txt/, 'location context, phase 1, index page');
like(http_get_host('s1', '/?phase2=BAD'), qr/$error_txt/, 'location context, phase 2, error page');
like(http_get_host('s1', '/?phase2=GOOD'), qr/$index_txt/, 'location context, phase 2, index page');
like(http_get_host('s1', '/?phase3=BAD'), qr/$error_txt/, 'location context, phase 3, error page');
like(http_get_host('s1', '/?phase3=GOOD'), qr/$index_txt/, 'location context, phase 3, index page');
is(http_get_host('s1', '/?phase4=BAD'), '', 'location context, phase 4, drop');
like(http_get_host('s1', '/?phase4=GOOD'), qr/$index_txt/, 'location context, phase 4, index page');

my $local = do {
local $/ = undef;
Expand All @@ -140,25 +145,40 @@ my $local = do {
<$fh>;
};

like($local, qr/phase1=BAD/, 'location context, phase 1, BAD in auditlog');
unlike($local, qr/phase1=GOOD/, 'location context, phase 1, GOOD not in auditlog');
like($local, qr/phase2=BAD/, 'location context, phase 2, BAD in auditlog');
unlike($local, qr/phase2=GOOD/, 'location context, phase 2, GOOD not in auditlog');
like($local, qr/phase3=BAD/, 'location context, phase 3, BAD in auditlog');
unlike($local, qr/phase3=GOOD/, 'location context, phase 3, GOOD not in auditlog');
like($local, qr/phase4=BAD/, 'location context, phase 4, BAD in auditlog');
unlike($local, qr/phase4=GOOD/, 'location context, phase 4, GOOD not in auditlog');

# Performing requests to a server with ModSecurity enabled at server context
like(http_get_host('s2', '/?phase1=BAD'), qr/$error_txt/, 'server context, phase 1, error page');
like(http_get_host('s2', '/?phase1=GOOD'), qr/$index_txt/, 'server context, phase 1, index page');
like(http_get_host('s2', '/?phase2=BAD'), qr/$error_txt/, 'server context, phase 2, error page');
like(http_get_host('s2', '/?phase2=GOOD'), qr/$index_txt/, 'server context, phase 2, index page');
like(http_get_host('s2', '/?phase3=BAD'), qr/$error_txt/, 'server context, phase 3, error page');
like(http_get_host('s2', '/?phase3=GOOD'), qr/$index_txt/, 'server context, phase 3, index page');
is(http_get_host('s2', '/?phase4=BAD'), '', 'server context, phase 4, drop');
like(http_get_host('s2', '/?phase4=GOOD'), qr/$index_txt/, 'server context, phase 4, index page');

my $global = do {
local $/ = undef;
open my $fh, "<", "$d/auditlog-global.txt"
or die "could not open: $!";
<$fh>;
};

like($t1, qr/$custom_txt/, 'ModSecurity at location / root');
like($t2, qr/$index_txt/, 'ModSecurity at location / other');
like($local, qr/what=root/, 'ModSecurity at location / root present in auditlog');
unlike($local, qr/what=other/, 'ModSecurity at location / other not present in auditlog');

like($t3, qr/$custom_txt/, 'ModSecurity at server / root');
like($t4, qr/$index_txt/, 'ModSecurity at server / other');
like($global, qr/what=root/, 'ModSecurity at server / root present in auditlog');
unlike($global, qr/what=other/, 'ModSecurity at server / other not present in auditlog');

like($local, qr/Access denied with code 403/, 'ModSecurity at location / 403 in auditlog');
like($global, qr/Access denied with code 403/, 'ModSecurity at server / 403 in auditlog');
like($global, qr/phase1=BAD/, 'server context, phase 1, BAD in auditlog');
unlike($global, qr/phase1=GOOD/, 'server context, phase 1, GOOD not in auditlog');
like($global, qr/phase2=BAD/, 'server context, phase 2, BAD in auditlog');
unlike($global, qr/phase2=GOOD/, 'server context, phase 2, GOOD not in auditlog');
like($global, qr/phase3=BAD/, 'server context, phase 3, BAD in auditlog');
unlike($global, qr/phase3=GOOD/, 'server context, phase 3, GOOD not in auditlog');
like($global, qr/phase4=BAD/, 'server context, phase 4, BAD in auditlog');
unlike($global, qr/phase4=GOOD/, 'server context, phase 4, GOOD not in auditlog');

###############################################################################

Expand Down