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Issue 876600 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner:
Closed: Nov 30
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 2
Type: Bug-Regression



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Chrome extension blacklist policy bypass

Reported by aksubacct@gmail.com, Aug 22

Issue description

UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36
Platform: 10452.100.0 (Official Build) stable-channel kefka

Steps to reproduce the problem:
1. Create a website with an inline extension install button
2. Trigger the install action
3. Extension will proceed to install regardless of blacklist policy

What is the expected behavior?
The extension should have been blocked

What went wrong?
The extension was allowed to install when it was on the blacklist.

WebStore page: 

Did this work before? Yes 66.0.3359.203

Chrome version: 65.0.3325.181  Channel: stable
OS Version: 66.0.3359.203
Flash Version: 29.0.0.171

The extension will not persist across the account or if the account is removed and re-added.
 
Components: Enterprise
Labels: Needs-Feedback
The bug was reported against Chrome 65, but that's no longer stable. Does the issue still present itself if running Chrome Stable? The current Mac stable is 67.0.3396.99
Oh, this was from a Chromebook. I published it on my mac. 
Project Member

Comment 3 by sheriffbot@chromium.org, Aug 22

Cc: rsleevi@chromium.org
Labels: -Needs-Feedback
Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Cc: -rsleevi@chromium.org
Cc: kathrelk...@chromium.org
Checked on Google Chrome: 70.0.3524.2 Platform 10987.0.0

Followed Steps:
1. Added a chrome add on link to url blocking list in Cpanel. (https://chrome.google.com/webstore/detail/screencastify-screen-vide/mmeijimgabbpbgpdklnllpncmdofkcpn)
2. Enrolled device and logged in as a user.
3. Search for the app ("Screencastify") and load the web page.
4. On the app home page, click "Add to Chrome" button and Observe.

Observation:
Clicking on "Add to Chrome" redirects to error page "chrome.google.com is blocked"

Attached screenshots.

Please share the website details which helps to check the issue more precisely. Thanks.!
Screenshot 2018-08-22 at 10.12.05 AM.png
350 KB View Download
Screenshot 2018-08-22 at 10.12.12 AM.png
62.1 KB View Download
Labels: Needs-Feedback
Also could you please provide the blacklist policy for blocking the extension.?
Ping.
Could you please provide the requested details.?
Cc: atwilson@chromium.org ultrotter@chromium.org
Owner: chchakrapani@chromium.org
chchakrapani: I don't think you are following the repro steps correctly.

You are supposed to blacklist the extension itself (i.e. http://www.chromium.org/administrators/policy-list-3#ExtensionInstallBlacklist), not URL-blacklist the extension install URL.

Can you try again using an extension blacklist this time?
I will retry and update the results ASAP. 
Owner: atwilson@chromium.org
Checked using yaps and observed the below error dialog upon blocking an extension.

"Ooops Screencastify - Screen Video Recorder (extension ID "mmeijimgabbpbgpdklnllpncmdofkcpn" is blocked by the administrator".

Attached Screenshot. Please take a look.

Screenshot 2018-10-01 at 2.59.34 PM.png
352 KB View Download
Status: WontFix (was: Unconfirmed)
OK, marking as wontfix due to no repro.
It was already fixed in chrome version 70 atwilson@chromium.org

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