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uBlock Origin Criticized for Blocking Content Security Policy

posted by Fnord666 on Monday October 23 2017, @09:09AM   Printer-friendly
from the Digital-Arms-Race dept.

MrPlow writes:

Submitted via IRC for TheMightyBuzzard

The popular content blocking extension uBlock Origin blocks CSP reporting on websites that make use of it if it injects neutered scripts.

CSP, Content Security Policy, can be used by web developers to whitelist code that is allowed to run on web properties. The idea behind the feature is to prevent attackers from injecting JavaScript on websites protected by CSP.

CSP reports any attempt of interfering with the site's policies in regards to scripts to the webmaster. This happens when users connect to the site, and is used by webmasters to analyze and resolve the detected issues.

[...] Raymond Hill, the developer of uBlock Origin, replied stating that this was not a bug but by design. The extension blocks the sending of CSP reports if it injects a neutered Google Analytics script.

Source: https://www.ghacks.net/2017/10/19/ublock-criticized-for-blocking-csp/

Original Submission

 
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  • (Score: 0) by Anonymous Coward on Monday October 23 2017, @06:25PM

    by Anonymous Coward on Monday October 23 2017, @06:25PM (#586473)

    But a lot of sites are so big that one user rarely if ever sees the whole thing, resulting in incomplete test coverage.

    Only a few hackers in the world are interested in pwning that just one person who happens to be viewing a particular document on a website that nobody else in the world is interested in.

    And if that person is running ublock I think he would want everything blocked, including reports.

    If that person isn't running ublock and got pwned I don't think he cares that the website got a CSP violation report or not.

    If that person wasn't pwned but his browser noticed the attempted CSP violation, I think that person would want the browser to notify him and stop running anything else from that site. His browser sending reports and more data to that site is not what he would want. If he wishes he can go tell the site himself, but given that he's the only one in the world being targeted I think he has more important things to do (like maybe leave the country ;) ).

    If that person was a security researcher testing the site, he should be getting the report from the browser side (e.g. click on "violation details"). Not from the browser telling the server side "guess what my user nearly got pwned". That's how it would work if the browser makers and standards bodies were actually interested in security and not more insidious ways for tracking people.