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authorjanekptacijarabaci <janekptacijarabaci@seznam.cz>2017-08-25 09:36:20 +0200
committerwolfbeast <mcwerewolf@gmail.com>2018-02-22 11:20:38 +0100
commitb4dac5093a75a024643b93aef88758770df73c55 (patch)
tree52b65bf6c091687f9e123c65db45a6f9de17fcec
parenta06ce3f03b260d59199dba7e01ea8afb3de1ef59 (diff)
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CSP: Ignore nonces on <img> per spec
Diffstat
-rw-r--r--dom/security/nsCSPContext.cpp11
-rw-r--r--dom/security/test/csp/file_image_nonce.html39
-rw-r--r--dom/security/test/csp/file_image_nonce.html^headers^2
-rw-r--r--dom/security/test/csp/mochitest.ini3
-rw-r--r--dom/security/test/csp/test_image_nonce.html60
5 files changed, 111 insertions, 4 deletions
diff --git a/dom/security/nsCSPContext.cpp b/dom/security/nsCSPContext.cpp
index 0a3e20305..5e435d4ca 100644
--- a/dom/security/nsCSPContext.cpp
+++ b/dom/security/nsCSPContext.cpp
@@ -156,10 +156,13 @@ nsCSPContext::ShouldLoad(nsContentPolicyType aContentType,
nsAutoString nonce;
bool parserCreated = false;
if (!isPreload) {
- nsCOMPtr<nsIDOMHTMLElement> htmlElement = do_QueryInterface(aRequestContext);
- if (htmlElement) {
- rv = htmlElement->GetAttribute(NS_LITERAL_STRING("nonce"), nonce);
- NS_ENSURE_SUCCESS(rv, rv);
+ if (aContentType == nsIContentPolicy::TYPE_SCRIPT ||
+ aContentType == nsIContentPolicy::TYPE_STYLESHEET) {
+ nsCOMPtr<nsIDOMHTMLElement> htmlElement = do_QueryInterface(aRequestContext);
+ if (htmlElement) {
+ rv = htmlElement->GetAttribute(NS_LITERAL_STRING("nonce"), nonce);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
}
nsCOMPtr<nsIScriptElement> script = do_QueryInterface(aRequestContext);
diff --git a/dom/security/test/csp/file_image_nonce.html b/dom/security/test/csp/file_image_nonce.html
new file mode 100644
index 000000000..5d57bb837
--- /dev/null
+++ b/dom/security/test/csp/file_image_nonce.html
@@ -0,0 +1,39 @@
+<!DOCTYPE HTML>
+<html>
+ <head>
+ <meta charset='utf-8'>
+ <title>Bug 1355801: Nonce should not apply to images</title>
+ </head>
+<body>
+
+<img id='matchingNonce' src='http://mochi.test:8888/tests/image/test/mochitest/blue.png?a' nonce='abc'></img>
+<img id='nonMatchingNonce' src='http://mochi.test:8888/tests/image/test/mochitest/blue.png?b' nonce='bca'></img>
+<img id='noNonce' src='http://mochi.test:8888/tests/image/test/mochitest/blue.png?c'></img>
+
+<script type='application/javascript'>
+ var matchingNonce = document.getElementById('matchingNonce');
+ matchingNonce.onload = function(e) {
+ window.parent.postMessage({result: 'img-with-matching-nonce-loaded'}, '*');
+ };
+ matchingNonce.onerror = function(e) {
+ window.parent.postMessage({result: 'img-with-matching-nonce-blocked'}, '*');
+ }
+
+ var nonMatchingNonce = document.getElementById('nonMatchingNonce');
+ nonMatchingNonce.onload = function(e) {
+ window.parent.postMessage({result: 'img-with_non-matching-nonce-loaded'}, '*');
+ };
+ nonMatchingNonce.onerror = function(e) {
+ window.parent.postMessage({result: 'img-with_non-matching-nonce-blocked'}, '*');
+ }
+
+ var noNonce = document.getElementById('noNonce');
+ noNonce.onload = function(e) {
+ window.parent.postMessage({result: 'img-without-nonce-loaded'}, '*');
+ };
+ noNonce.onerror = function(e) {
+ window.parent.postMessage({result: 'img-without-nonce-blocked'}, '*');
+ }
+</script>
+</body>
+</html>
diff --git a/dom/security/test/csp/file_image_nonce.html^headers^ b/dom/security/test/csp/file_image_nonce.html^headers^
new file mode 100644
index 000000000..0d63558c4
--- /dev/null
+++ b/dom/security/test/csp/file_image_nonce.html^headers^
@@ -0,0 +1,2 @@
+Content-Security-Policy: img-src 'nonce-abc';
+Cache-Control: no-cache
diff --git a/dom/security/test/csp/mochitest.ini b/dom/security/test/csp/mochitest.ini
index 04401b063..d3cabc16d 100644
--- a/dom/security/test/csp/mochitest.ini
+++ b/dom/security/test/csp/mochitest.ini
@@ -211,6 +211,8 @@ support-files =
file_ro_ignore_xfo.html
file_ro_ignore_xfo.html^headers^
file_upgrade_insecure_navigation.sjs
+ file_image_nonce.html
+ file_image_nonce.html^headers^
[test_base-uri.html]
[test_blob_data_schemes.html]
@@ -305,3 +307,4 @@ support-files =
file_sandbox_allow_scripts.html
file_sandbox_allow_scripts.html^headers^
[test_ignore_xfo.html]
+[test_image_nonce.html]
diff --git a/dom/security/test/csp/test_image_nonce.html b/dom/security/test/csp/test_image_nonce.html
new file mode 100644
index 000000000..ff6d636b6
--- /dev/null
+++ b/dom/security/test/csp/test_image_nonce.html
@@ -0,0 +1,60 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <title>Bug 1139297 - Implement CSP upgrade-insecure-requests directive</title>
+ <!-- Including SimpleTest.js so we can use waitForExplicitFinish !-->
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<iframe style="width:100%;" id="testframe"></iframe>
+
+<script class="testbody" type="text/javascript">
+
+/* Description of the test:
+ * We load three images: (a) with a matching nonce,
+ (b) with a non matching nonce,
+ * (c) with no nonce
+ * and make sure that all three images get blocked because
+ * "img-src nonce-bla" should not allow an image load, not
+ * even if the nonce matches*.
+ */
+
+SimpleTest.waitForExplicitFinish();
+
+var counter = 0;
+
+function finishTest() {
+ window.removeEventListener("message", receiveMessage);
+ SimpleTest.finish();
+}
+
+function checkResults(aResult) {
+ counter++;
+ if (aResult === "img-with-matching-nonce-blocked" ||
+ aResult === "img-with_non-matching-nonce-blocked" ||
+ aResult === "img-without-nonce-blocked") {
+ ok (true, "correct result for: " + aResult);
+ }
+ else {
+ ok(false, "unexpected result: " + aResult + "\n\n");
+ }
+ if (counter < 3) {
+ return;
+ }
+ finishTest();
+}
+
+// a postMessage handler that is used by sandboxed iframes without
+// 'allow-same-origin' to bubble up results back to this main page.
+window.addEventListener("message", receiveMessage);
+function receiveMessage(event) {
+ checkResults(event.data.result);
+}
+
+document.getElementById("testframe").src = "file_image_nonce.html";
+
+</script>
+</body>
+</html>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 09:36:59 +0000