walla.co.il

Here you should report unblocked ads, trackers, social media items, annoyances or leftovers from blocked content.

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Dzr561
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walla.co.il

Post by Dzr561 » Tue Nov 22, 2016 8:37 pm

Hi,

A serious bug in the easylist blacklist/ whitelist - you can see an example at www.walla.co.il

Using this bug they can bypass the adblock with a simple HTTP request although the domain is already in the blacklist. They trick the easylist with using a 'whitelisted' domain as a sub-domain (with no connection to the acceptable ads rules).

Explanation:

The ad blocked domain (REAL domain): umamdmo.com (already blocked in the Heb list).
The main easy list has a record with the rule: @@||comeadvertisewithus.com*/ads.js (source: eastlist)

They are using the sub-domain called "comeadvertisewithus.com" for the domain "umamdmo.com" which generates this URL, for example,

Code: Select all

https://comeadvertisewithus.com.umamdmo.com/i161eee4/?w=w&q=/ads.js
The Adblock consider the URL https://comeadvertisewithus.com.umamdmo.com as a whitelisted domain, and the ad block is unable to distinguish between REAL domain and the sub-domain, and since the whitelisted rule is stronger than the blacklisted rule, the domain is bypass easily the adblock.

see this: https://github.com/easylist/EasyListHebrew/issues/211

https://cloud.githubusercontent.com/ass ... fd6924.png

Thanks

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Lanik
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Post by Lanik » Tue Nov 22, 2016 8:54 pm

Dzr561 wrote: A serious bug in the easylist blacklist/ whitelist - you can see an example at www.walla.co.il
That's not a bug, a bug would be a typo. That's someone taking advantage of the exception rules to benefit themselves. Happens too often unfortunately.

One of the EasyList authors will have to fix that.
"If it ain't broke don't fix it."

WarFame
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Post by WarFame » Tue Nov 22, 2016 8:58 pm

Might be a typo though. viewtopic.php?p=107271#p107271

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smed79
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Post by smed79 » Tue Nov 22, 2016 11:32 pm

•► Before posting, to find your answer fast, read Forum « RULES » and use « Search »
••► Don't post clickable links » use inline text bbcode notation « [ C ] » or « [ code ] »

rhanajoy
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Post by rhanajoy » Sat Mar 25, 2017 11:28 pm

Hey guys. What should I tell our users who report unblocked ads on walla.co.il? This discussion seems to indicate they can't be blocked by EasyList or the Hebrew list until the list maintainers fix that exception rule exploit. Is there a custom filter or filters that will get around this?
Rhana
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Posting on behalf of AdBlock (not ABP), when users come to us first and we have some reason to get involved with the discussion. http://help.getadblock.com

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Lanik
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Post by Lanik » Sun Mar 26, 2017 12:42 am

One of the authors will need to fix the list. Then what they're doing will stop working.
"If it ain't broke don't fix it."

Khrin
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Post by Khrin » Sun Mar 26, 2017 3:27 pm

I haven't seen any of our filters being abused to deliver adverts. I don't know Hebrew but also I haven't seen any evident advert still unblocked.

nomaed
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Post by nomaed » Thu Apr 06, 2017 8:21 pm

I made a report about ads appearing on news.walla.co.il

Here are the details:
Chrome Version 57.0.2987.133 (Official Build) (64-bit)
macOS Sierra 10.12.3 (16D32)
AdBlock VERSION 3.9.1

I created a new Chrome profile ("test") and installed the AdBlock extension and added "Hebrew + EasyList" in the languages section.
Then opened the URL: http://news.walla.co.il

It appears when window width is 1003 pixels or more (otherwise, their responsive UI removes these elements).

The top ad appears in a div on the main page with class name "slot-top-desktop".
The right skyscraper is in a div with id of "skyscraper-desktop".
The ads themselves are in canvases that are buried inside 3 levels of iframes, although that might be less relevant.

The banners do not appear with ABP on Firefox 52.0.2 with the EasyList/Hebrew filter added.

Screenshot: http://i.imgur.com/b0aKeQx.png

IsraeliAdblocker
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Post by IsraeliAdblocker » Fri Apr 07, 2017 1:58 pm

Firefox is already solved there but Chrome is different, I suggest to use Ublock Origin for now which is working great.
Please open an issue inside the HebrewList Github.

-Mark-
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Post by -Mark- » Fri Apr 07, 2017 2:08 pm

What should I tell our users who report unblocked ads on walla.co.il?
A behind-the-scenes WebRTC connection is taking place through which ads are being fetched. On Chromium, open

Code: Select all

chrome://webrtc-internals
in a new tab.

Patched on uBO via uBO-Extra.

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