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Issue metadata

Status: WontFix
Owner:
Last visit > 30 days ago
Closed: Jun 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: ----
Type: Bug



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Security: Preload HTST domains is not working against SSLStrip

Reported by n3v3r...@gmail.com, Jun 3 2016

Issue description

Please see the following link for instructions on filing security bugs:
http://www.chromium.org/Home/chromium-security/reporting-security-bugs


VULNERABILITY DETAILS
Preload HTST domains is not working against SSLStrip

VERSION
Chrome Version:  51.0.2704.79 (64-bit) stable
Operating System: [OSX EI Capitan 10.11.4]

REPRODUCTION CASE
Use Moxie's SSLStrip tool, you can browse the www.google.co.jp in HTTP protocol. https://moxie.org/software/sslstrip/

I noticed that google.co.jp is preloaded by querying chrome://net-internals/#hsts and the "static_sts_include_subdomains" is set to "true".
However, this preloaded item seems does not working against SSLStrip. I can still view the http page of www.google.co.jp. But If I add www.google.co.jp manually (to dynamic_sts_domain), then it will prevent the SSLStrip and stop me from browsing google. Besides, google's server is not sending any HSTS header.
In the attached file, you can see that the url address is in HTTP, not HTTPS.

 
note_the_url_is_http.png
48.8 KB View Download

Comment 1 by f...@chromium.org, Jun 3 2016

Cc: f...@chromium.org
Owner: lgar...@chromium.org
Status: WontFix (was: Unconfirmed)
Thanks for the report.

To my knowledge: www.google.* is not currently preloaded HSTS, and we do not dynamically serve HSTS headers for www.google.co.jp yet. 

lgarron@, do you know why it's showing up as if it's preloaded in chrome://net-internals/#hsts?
chrome://net-internals#hsts can be a bit hard to read, but google.co.jp is static_upgrade_mode: OPPORTUNISTIC, not static_upgrade_mode: STRICT.

There is lots of work to get the google.{ccTLD} domains ready for preloaded, but we're not there yet.
Labels: -Type-Bug-Security -Restrict-View-SecurityTeam Type-Bug

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