Arch Linux

Horowitz

Member

Registered: 2015-02-23

Posts: 1

HPKP broken system-wide?

Visiting https://superfish.tlsfun.de/style.css pins the valid certs for the domain superfish.tlsfun.de incl all sub-domains. So trying to open https://mitm.superfish.tlsfun.de/style.css should end in a browser error. On Win 7 and Ubuntu 14.04 that actually works: Firefox tells me:

Secure Connection Failed

An error occurred during a connection to mitm.superfish.tlsfun.de. The server uses key pinning (HPKP) but no trusted certificate chain could be constructed that matches the pinset. Key pinning violations cannot be overridden. (Error code: mozilla_pkix_error_key_pinning_failure)
• The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
• Please contact the website owners to inform them of this problem.

Same for Chrome: NET::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN

Unfortunately on Arch, Firefox and Chromium/Chrome do load https://mitm.superfish.tlsfun.de/style.css without complaining, i.e. you are not protected against certain MITM attacks. How can this be fixed?

Lone_Wolf

Forum Moderator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,964

Re: HPKP broken system-wide?

Looks like all arch browsers have that problem, check FS #43971

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)