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authorjanekptacijarabaci <janekptacijarabaci@seznam.cz>2017-08-25 10:38:52 +0200
committerwolfbeast <mcwerewolf@gmail.com>2018-02-22 11:30:29 +0100
commit896e23c20eba71bffa77cb0874b9b341e1b6c264 (patch)
tree1175498d423599b5cf56ce4788f3c64ab77b283b /dom
parentcdcfbde10dbcf0fab0630d5ee0146be45d7a6572 (diff)
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CSP: connect-src 'self' should always include https: and wss: schemes
Diffstat (limited to 'dom')
-rw-r--r--dom/security/nsCSPParser.cpp2
-rw-r--r--dom/security/nsCSPUtils.cpp36
-rw-r--r--dom/security/nsCSPUtils.h6
-rw-r--r--dom/security/test/csp/file_websocket_explicit.html31
-rw-r--r--dom/security/test/csp/file_websocket_self.html31
-rw-r--r--dom/security/test/csp/file_websocket_self_wsh.py7
-rw-r--r--dom/security/test/csp/mochitest.ini5
-rw-r--r--dom/security/test/csp/test_websocket_self.html61
8 files changed, 168 insertions, 11 deletions
diff --git a/dom/security/nsCSPParser.cpp b/dom/security/nsCSPParser.cpp
index f1b5d8ba7..86aa4e001 100644
--- a/dom/security/nsCSPParser.cpp
+++ b/dom/security/nsCSPParser.cpp
@@ -532,7 +532,7 @@ nsCSPParser::keywordSource()
// Special case handling for 'self' which is not stored internally as a keyword,
// but rather creates a nsCSPHostSrc using the selfURI
if (CSP_IsKeyword(mCurToken, CSP_SELF)) {
- return CSP_CreateHostSrcFromURI(mSelfURI);
+ return CSP_CreateHostSrcFromSelfURI(mSelfURI);
}
if (CSP_IsKeyword(mCurToken, CSP_STRICT_DYNAMIC)) {
diff --git a/dom/security/nsCSPUtils.cpp b/dom/security/nsCSPUtils.cpp
index 0ca8f520e..a5f683b01 100644
--- a/dom/security/nsCSPUtils.cpp
+++ b/dom/security/nsCSPUtils.cpp
@@ -266,20 +266,21 @@ CSP_ContentTypeToDirective(nsContentPolicyType aType)
}
nsCSPHostSrc*
-CSP_CreateHostSrcFromURI(nsIURI* aURI)
+CSP_CreateHostSrcFromSelfURI(nsIURI* aSelfURI)
{
// Create the host first
nsCString host;
- aURI->GetAsciiHost(host);
+ aSelfURI->GetAsciiHost(host);
nsCSPHostSrc *hostsrc = new nsCSPHostSrc(NS_ConvertUTF8toUTF16(host));
+ hostsrc->setGeneratedFromSelfKeyword();
// Add the scheme.
nsCString scheme;
- aURI->GetScheme(scheme);
+ aSelfURI->GetScheme(scheme);
hostsrc->setScheme(NS_ConvertUTF8toUTF16(scheme));
int32_t port;
- aURI->GetPort(&port);
+ aSelfURI->GetPort(&port);
// Only add port if it's not default port.
if (port > 0) {
nsAutoString portStr;
@@ -348,13 +349,17 @@ CSP_IsQuotelessKeyword(const nsAString& aKey)
* @param aUpgradeInsecure
* Whether the policy makes use of the directive
* 'upgrade-insecure-requests'.
+ * @param aFromSelfURI
+ * Whether a scheme was generated from the keyword 'self'
+ * which then allows schemeless sources to match ws and wss.
*/
bool
permitsScheme(const nsAString& aEnforcementScheme,
nsIURI* aUri,
bool aReportOnly,
- bool aUpgradeInsecure)
+ bool aUpgradeInsecure,
+ bool aFromSelfURI)
{
nsAutoCString scheme;
nsresult rv = aUri->GetScheme(scheme);
@@ -373,8 +378,20 @@ permitsScheme(const nsAString& aEnforcementScheme,
// allow scheme-less sources where the protected resource is http
// and the load is https, see:
// http://www.w3.org/TR/CSP2/#match-source-expression
- if (aEnforcementScheme.EqualsASCII("http") &&
- scheme.EqualsASCII("https")) {
+ if (aEnforcementScheme.EqualsASCII("http")) {
+ if (scheme.EqualsASCII("https")) {
+ return true;
+ }
+ if ((scheme.EqualsASCII("ws") || scheme.EqualsASCII("wss")) && aFromSelfURI) {
+ return true;
+ }
+ }
+ if (aEnforcementScheme.EqualsASCII("https")) {
+ if (scheme.EqualsLiteral("wss") && aFromSelfURI) {
+ return true;
+ }
+ }
+ if (aEnforcementScheme.EqualsASCII("ws") && scheme.EqualsASCII("wss")) {
return true;
}
@@ -483,7 +500,7 @@ nsCSPSchemeSrc::permits(nsIURI* aUri, const nsAString& aNonce, bool aWasRedirect
if (mInvalidated) {
return false;
}
- return permitsScheme(mScheme, aUri, aReportOnly, aUpgradeInsecure);
+ return permitsScheme(mScheme, aUri, aReportOnly, aUpgradeInsecure, false);
}
bool
@@ -503,6 +520,7 @@ nsCSPSchemeSrc::toString(nsAString& outStr) const
nsCSPHostSrc::nsCSPHostSrc(const nsAString& aHost)
: mHost(aHost)
+ , mGeneratedFromSelfKeyword(false)
, mWithinFrameAncstorsDir(false)
{
ToLowerCase(mHost);
@@ -612,7 +630,7 @@ nsCSPHostSrc::permits(nsIURI* aUri, const nsAString& aNonce, bool aWasRedirected
// http://www.w3.org/TR/CSP11/#match-source-expression
// 4.3) scheme matching: Check if the scheme matches.
- if (!permitsScheme(mScheme, aUri, aReportOnly, aUpgradeInsecure)) {
+ if (!permitsScheme(mScheme, aUri, aReportOnly, aUpgradeInsecure, mGeneratedFromSelfKeyword)) {
return false;
}
diff --git a/dom/security/nsCSPUtils.h b/dom/security/nsCSPUtils.h
index 468c734a2..cfbe83256 100644
--- a/dom/security/nsCSPUtils.h
+++ b/dom/security/nsCSPUtils.h
@@ -186,7 +186,7 @@ nsresult CSP_AppendCSPFromHeader(nsIContentSecurityPolicy* aCsp,
class nsCSPHostSrc;
-nsCSPHostSrc* CSP_CreateHostSrcFromURI(nsIURI* aURI);
+nsCSPHostSrc* CSP_CreateHostSrcFromSelfURI(nsIURI* aSelfURI);
bool CSP_IsValidDirective(const nsAString& aDir);
bool CSP_IsDirective(const nsAString& aValue, CSPDirective aDir);
bool CSP_IsKeyword(const nsAString& aValue, enum CSPKeyword aKey);
@@ -256,6 +256,9 @@ class nsCSPHostSrc : public nsCSPBaseSrc {
void setPort(const nsAString& aPort);
void appendPath(const nsAString &aPath);
+ inline void setGeneratedFromSelfKeyword() const
+ { mGeneratedFromSelfKeyword = true;}
+
inline void setWithinFrameAncestorsDir(bool aValue) const
{ mWithinFrameAncstorsDir = aValue; }
@@ -276,6 +279,7 @@ class nsCSPHostSrc : public nsCSPBaseSrc {
nsString mHost;
nsString mPort;
nsString mPath;
+ mutable bool mGeneratedFromSelfKeyword;
mutable bool mWithinFrameAncstorsDir;
};
diff --git a/dom/security/test/csp/file_websocket_explicit.html b/dom/security/test/csp/file_websocket_explicit.html
new file mode 100644
index 000000000..51462ab74
--- /dev/null
+++ b/dom/security/test/csp/file_websocket_explicit.html
@@ -0,0 +1,31 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <title>Bug 1345615: Allow websocket schemes when using 'self' in CSP</title>
+ <meta http-equiv="Content-Security-Policy" content="connect-src ws:">
+</head>
+<body>
+ <script type="application/javascript">
+ /* load socket using ws */
+ var wsSocket = new WebSocket("ws://example.com/tests/dom/security/test/csp/file_websocket_self");
+ wsSocket.onopen = function(e) {
+ window.parent.postMessage({result: "explicit-ws-loaded"}, "*");
+ wsSocket.close();
+ };
+ wsSocket.onerror = function(e) {
+ window.parent.postMessage({result: "explicit-ws-blocked"}, "*");
+ };
+
+ /* load socket using wss */
+ var wssSocket = new WebSocket("wss://example.com/tests/dom/security/test/csp/file_websocket_self");
+ wssSocket.onopen = function(e) {
+ window.parent.postMessage({result: "explicit-wss-loaded"}, "*");
+ wssSocket.close();
+ };
+ wssSocket.onerror = function(e) {
+ window.parent.postMessage({result: "explicit-wss-blocked"}, "*");
+ };
+ </script>
+</body>
+</html>
diff --git a/dom/security/test/csp/file_websocket_self.html b/dom/security/test/csp/file_websocket_self.html
new file mode 100644
index 000000000..3ff5f0558
--- /dev/null
+++ b/dom/security/test/csp/file_websocket_self.html
@@ -0,0 +1,31 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <title>Bug 1345615: Allow websocket schemes when using 'self' in CSP</title>
+ <meta http-equiv="Content-Security-Policy" content="connect-src 'self'">
+</head>
+<body>
+ <script type="application/javascript">
+ /* load socket using ws */
+ var wsSocket = new WebSocket("ws://example.com/tests/dom/security/test/csp/file_websocket_self");
+ wsSocket.onopen = function(e) {
+ window.parent.postMessage({result: "self-ws-loaded"}, "*");
+ wsSocket.close();
+ };
+ wsSocket.onerror = function(e) {
+ window.parent.postMessage({result: "self-ws-blocked"}, "*");
+ };
+
+ /* load socket using wss */
+ var wssSocket = new WebSocket("wss://example.com/tests/dom/security/test/csp/file_websocket_self");
+ wssSocket.onopen = function(e) {
+ window.parent.postMessage({result: "self-wss-loaded"}, "*");
+ wssSocket.close();
+ };
+ wssSocket.onerror = function(e) {
+ window.parent.postMessage({result: "self-wss-blocked"}, "*");
+ };
+ </script>
+</body>
+</html>
diff --git a/dom/security/test/csp/file_websocket_self_wsh.py b/dom/security/test/csp/file_websocket_self_wsh.py
new file mode 100644
index 000000000..5fe508a91
--- /dev/null
+++ b/dom/security/test/csp/file_websocket_self_wsh.py
@@ -0,0 +1,7 @@
+from mod_pywebsocket import msgutil
+
+def web_socket_do_extra_handshake(request):
+ pass
+
+def web_socket_transfer_data(request):
+ pass
diff --git a/dom/security/test/csp/mochitest.ini b/dom/security/test/csp/mochitest.ini
index 8d44e9b0b..2102cbe70 100644
--- a/dom/security/test/csp/mochitest.ini
+++ b/dom/security/test/csp/mochitest.ini
@@ -215,6 +215,9 @@ support-files =
file_image_nonce.html^headers^
file_punycode_host_src.sjs
file_punycode_host_src.js
+ file_websocket_self.html
+ file_websocket_explicit.html
+ file_websocket_self_wsh.py
[test_base-uri.html]
[test_blob_data_schemes.html]
@@ -311,3 +314,5 @@ support-files =
[test_ignore_xfo.html]
[test_image_nonce.html]
[test_punycode_host_src.html]
+[test_websocket_self.html]
+skip-if = toolkit == 'android'
diff --git a/dom/security/test/csp/test_websocket_self.html b/dom/security/test/csp/test_websocket_self.html
new file mode 100644
index 000000000..a03c32704
--- /dev/null
+++ b/dom/security/test/csp/test_websocket_self.html
@@ -0,0 +1,61 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <title>Bug 1345615: Allow websocket schemes when using 'self' in CSP</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="test_ws_self_frame"></iframe>
+<iframe style="width:100%;" id="test_ws_explicit_frame"></iframe>
+
+<script class="testbody" type="text/javascript">
+
+/* Description of the test:
+ * We load an iframe using connect-src 'self' and one
+ * iframe using connect-src ws: and make
+ * sure that in both cases ws: as well as wss: is allowed to load.
+ */
+
+SimpleTest.waitForExplicitFinish();
+
+function finishTest() {
+ window.removeEventListener("message", receiveMessage);
+ SimpleTest.finish();
+}
+
+const TOTAL_TESTS = 4;
+var counter = 0;
+
+function checkResults(result) {
+ counter++;
+ if (result === "self-ws-loaded" || result === "self-wss-loaded" ||
+ result === "explicit-ws-loaded" || result === "explicit-wss-loaded") {
+ ok(true, "Evaluating: " + result);
+ }
+ else {
+ ok(false, "Evaluating: " + result);
+ }
+ if (counter < TOTAL_TESTS) {
+ return;
+ }
+ finishTest();
+}
+
+window.addEventListener("message", receiveMessage);
+function receiveMessage(event) {
+ checkResults(event.data.result);
+}
+
+const HOST = "http://example.com/tests/dom/security/test/csp/";
+var test_ws_self_frame = document.getElementById("test_ws_self_frame");
+test_ws_self_frame.src = HOST + "file_websocket_self.html";
+
+var test_ws_explicit_frame = document.getElementById("test_ws_explicit_frame");
+test_ws_explicit_frame.src = HOST + "file_websocket_explicit.html";
+
+</script>
+</body>
+</html>