I was talking to Sai about this and he instructed I make a comment right here — so I haven’t read via and understood the current state of dialogue, apologies. Those are each detectable through performance traits. Allowing them to be set wouldn’t fix the exploit in any useful method.
- With my proposal, we only do ONE origin examine for each link, and a full history lookup ONLY on these links that come from a identical origin.
- It is true that these proposed modifications make assaults tougher and are prone to work nicely with most sites.
- Plus we might spend plenty of time on backporting as a substitute of of engaged on efficiency or different features.
- The norm for the last donkey’s years on each browser has been that visited links are always shown as visited whether or not or not they’re on the identical domain as what you are at present viewing.
- Those are both detectable through performance traits.
- The final stage of adding hyperlink color would be after the page had finished rendering (into non-display memory), so it will be harder to time.
- Simply unplug the cord and plug it again in once extra, ensuring it’s securely attached.
The monitoring page will then fetch all the links on that web page. It may then comply with me as I have a glance at a wikipedia page linked from the feedback, and any subsequent pages linked from there. That they’ve the choice of utilizing a processor as transparent as CCBill is borderline gorgeous. ManyCam is an easy-to-use digital digicam and stay streaming software program that helps you ship skilled stay films on streaming platforms, video conferencing apps, and remote learning instruments. If you have to spend as little as potential on an sincere webcam, we advise the Logitech HD Webcam C615.
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Another fascinating thing that might be carried out since bug was fixed is to know in actual time when someone clicks on a link. For example, you could visit a page that did the type of monitoring described above, then keep it open in a background tab. If I click on on a story on slashdot that I’ve not read earlier than, that hyperlink will instantly turn into ‘visited’ on the monitoring web page.
Remark 100
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Comment 148
I do not think this may necessarily always be the case, although in some circumstances I suspect it might properly be (and notice you shouldn’t consider my assertions as authoritative). In the first case it’s a privacy violation, which we normally classify as distinct from safety problem. Sounds like you want layout.css.visited_links_enabled , which has been around for a while . It’s performance-sensitive code, and it might be run at times when it is inappropriate to call into script. However, if we add assist for pointer-events values that make hit testing rely upon pixel transparency, then elementFromPoint could possibly be used to check transparency, and therefore colour.
I can change forwards and backwards between instructor view, demonstration digital camera, audience view, presentation slide deck or video, etc… and it’s seamless. In a nutshell, it really lets me exhibit the content material without requiring costly know-how and having the expertise control what can occur. This could also be manually corrected, however, in Logitech’s straightforward digicam settings software, which lets you administration the color depth and white stability. What used to take a Tricaster/Video Toaster setup can now be done in software program using an everyday PC. I can change backwards and forwards between teacher view, demonstration digicam, viewers view, presentation slide deck or video, etc… and it is seamless. I’d additionally wish to keep away from using fallback colors in cases where they weren’t before .
Certainly the safest path, and the simplest to implement, but again, we lose the performance of figuring out whether they’re visited or not… Then I assume we need to take a non-CSS approach to solving this, corresponding to storing all referring domains to a hyperlink in international historical past, and only allowing styling if the web page is in the referring domain. It is true that these proposed changes make assaults more difficult and are likely to work nicely with most sites. Although I support these modifications, I want to level out that they don’t repair the entire known exploits.
Remark Four
NO, I don’t desire web sites to have the power to play with visited standing — I can just think about online shops seeing what I’m buying from their competition and using that as commercial tracking. Optimistically marking this bug as fastened, although I already know of a few followup bugs that need to be filed. It’s not imagined to work, since that’s a change within the alpha part of the colour. If you imagine there’s a bug, may you file it as a separate bug report. It might be good to document no matter invariants this style context satisfies (e.g. the ones we assert in SetStyleIfVisited). I’m going to attach a sequence of patches that I imagine repair this bug.
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I suppose the pref added by the patch is helpful for a small fraction of users, and perhaps for a larger variety of customers if security consultants inside or outdoors Mozilla explain the problem. Here’s a patch for a layout.css.visited_links_enabled pref, defaulting to true. In other words, trade some design possibilities for privacy, while maintaining the full functionality of displaying visited links. For each visited URL, make a background request to a server that can fetch a copy of the URL and return an inventory of hyperlinks on that web page. 1) It would still be attainable for an attacker to construct a convincing phishing web page that looks like Wells Fargo to a Wells Fargo buyer and Citibank to a Citibank customer.
Plus we would spend plenty of time on backporting as an alternative of of working on efficiency or different features. So as I mentioned it’s a query of trade-offs, which are never simple. This is why it issues me that there seem to be no plans to backport the repair as far as I was capable of finding out.
To break this characteristic is breaking one of the most useful visual feedback elements of an internet browser. The content on a page shouldn’t be able to read the precise color of hyperlinks. But then if the reads of individual pixels effect rendering you get a recursive problem and it would take a huge amount of sources to totally render. 2) It would still be potential for an attacker to be taught details about the person’s history at different websites based on the place they click and do not click on. For instance, and attacker could have a huge hyperlink that says “Click right here” and only customers with a sure history entry would see it and click on it as a result of it blends in with the background otherwise.
Maybe, as an example, the antialiaser reveals some delicate dependency from colour to size, characters of a extra contrasting colour having a tiny tiny subpixel difference in width — voila, safety gap. I don’t know, beyond that giant numbers of web sites distinguish visited hyperlinks primarily based on colors. I’m involved to see what hyperlinks I’ve visited, but I do not care about fancy types. A completely different color for visited hyperlinks is sufficient, and if a page queries the colour it can be told the unvisited colour, or if the info sort permits, it can be informed both colours.