New issue
Advanced search Search tips

Issue 772708 link

Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 677187
Owner: ----
Closed: Oct 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: ----
Type: Bug



Sign in to add a comment

Security: Trigger infinite downloads

Reported by kemalisr...@gmail.com, Oct 8 2017

Issue description

VULNERABILITY DETAILS
Creates a loop of infinite downloads.
Creating disk fullying, and page crash.

VERSION
Chrome all versions + Firefox.
Operating System: [ Win 7 x64]

REPRODUCTION CASE
<?php
for($i=1;$i>0;$i++){
echo ('<iframe src="http://mywebpage.com/download.rar" width="0" height="0"> </iframe>');

}

?>


 
Components: UI>Browser>Downloads
Labels: Needs-Feedback
Summary: Security: Trigger infinite downloads (was: Security: Creates a loop of infinite downloads)
Do you have a working POC? The target URL in this repro does not exist.

Are you able to reproduce this on an Internet web page? In general, I would expect Chrome to allow at most one download per user-click.
What's your setting for "Ask when a site tries to download files automatically after the first file (recommended)" when you open chrome://settings/content/automaticDownloads ?


DefaultBlocked.png
17.6 KB View Download
Labels: -Type-Bug-Security -Restrict-View-SecurityTeam Type-Bug
Firstly it was disabled and worked a few times, also to bypass this don't
you need just 100 domains?
100 iframes with different download domain sources should bypass that

Il 09 Ott 2017 18:06, "och… via monorail" <
monorail+v2.4216146212@chromium.org> ha scritto:
Project Member

Comment 5 by sheriffbot@chromium.org, Oct 9 2017

Cc: elawrence@chromium.org
Labels: -Needs-Feedback
Thank you for providing more feedback. Adding requester "elawrence@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
You could also try to put 1 iframe to a different direct download link
ex:putty and block your websites multidownload feature and check if putty
will still be downloaded.. in this case using multy domains could create a
computer flood combined with a critical flag process kill would restart the
computer with full harddisk that means it won't start up.
Thank you for your time.

Il 10 Ott 2017 00:02, "Jennifer Miller" <kemalisreal@gmail.com> ha scritto:

Comment 7 by dah...@chromium.org, Oct 12 2017

Mergedinto: 677187
Status: Duplicate (was: Unconfirmed)

Sign in to add a comment