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-rw-r--r--toolkit/components/passwordmgr/nsLoginManagerPrompter.js48
1 files changed, 29 insertions, 19 deletions
diff --git a/toolkit/components/passwordmgr/nsLoginManagerPrompter.js b/toolkit/components/passwordmgr/nsLoginManagerPrompter.js
index 720e80446..35315110c 100644
--- a/toolkit/components/passwordmgr/nsLoginManagerPrompter.js
+++ b/toolkit/components/passwordmgr/nsLoginManagerPrompter.js
@@ -97,17 +97,25 @@ LoginManagerPromptFactory.prototype = {
return;
}
- // Allow only a limited number of authentication dialogs when they are all
- // canceled by the user.
- var cancelationCounter = (prompter._browser && prompter._browser.canceledAuthenticationPromptCounter) || { count: 0, id: 0 };
- if (prompt.channel) {
- var httpChannel = prompt.channel.QueryInterface(Ci.nsIHttpChannel);
- if (httpChannel) {
- var windowId = httpChannel.topLevelContentWindowId;
- if (windowId != cancelationCounter.id) {
- // window has been reloaded or navigated, reset the counter
- cancelationCounter = { count: 0, id: windowId };
- }
+ // Set up a counter for ensuring that the basic auth prompt can not
+ // be abused for DOS-style attacks. With this counter, each eTLD+1
+ // per browser will get a limited number of times a user can
+ // cancel the prompt until we stop showing it.
+ let browser = prompter._browser;
+ let baseDomain = null;
+ if (browser) {
+ try {
+ baseDomain = Services.eTLD.getBaseDomainFromHost(hostname);
+ } catch (e) {
+ baseDomain = hostname;
+ }
+
+ if (!browser.authPromptCounter) {
+ browser.authPromptCounter = {};
+ }
+
+ if (!browser.authPromptCounter[baseDomain]) {
+ browser.authPromptCounter[baseDomain] = 0;
}
}
@@ -137,13 +145,14 @@ LoginManagerPromptFactory.prototype = {
prompt.inProgress = false;
self._asyncPromptInProgress = false;
- if (ok) {
- cancelationCounter.count = 0;
- } else {
- cancelationCounter.count++;
- }
- if (prompter._browser) {
- prompter._browser.canceledAuthenticationPromptCounter = cancelationCounter;
+ if (browser) {
+ // Reset the counter state if the user replied to a prompt and actually
+ // tried to login (vs. simply clicking any button to get out).
+ if (ok && (prompt.authInfo.username || prompt.authInfo.password)) {
+ browser.authPromptCounter[baseDomain] = 0;
+ } else {
+ browser.authPromptCounter[baseDomain] += 1;
+ }
}
}
@@ -168,8 +177,9 @@ LoginManagerPromptFactory.prototype = {
var cancelDialogLimit = Services.prefs.getIntPref("prompts.authentication_dialog_abuse_limit");
+ let cancelationCounter = browser.authPromptCounter[baseDomain];
this.log("cancelationCounter =", cancelationCounter);
- if (cancelDialogLimit && cancelationCounter.count >= cancelDialogLimit) {
+ if (cancelDialogLimit && cancelationCounter >= cancelDialogLimit) {
this.log("Blocking auth dialog, due to exceeding dialog bloat limit");
delete this._asyncPrompts[hashKey];