Re: Cert pinning mismatch investigation

2017-05-03 Thread Nick Lamb via dev-security-policy
On Tuesday, 2 May 2017 14:52:52 UTC+1, Gervase Markham  wrote:
> Group participants may be interested in David Keeler's analysis of why
> Firefox seemed to be seeing cert pinning mismatches for Mozilla properties:
> https://people-mozilla.org/~dkeeler/deployment-checker-analysis.html

Indeed, that was interesting. In respect of "stale DNS" I will suggest an 
alternate explanation that seems plausible for the relatively small volumes 
involved - /etc/hosts and its moral equivalents on other systems are often 
changed in order to troubleshoot something and then simply never put back how 
they were originally. So a correct (at the time) address might be copied into a 
hosts file while trying to fix some issue such as DNS or connectivity problems, 
and then simply never removed (after all it still works ... for now)
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Cert pinning mismatch investigation

2017-05-02 Thread Gervase Markham via dev-security-policy
Group participants may be interested in David Keeler's analysis of why
Firefox seemed to be seeing cert pinning mismatches for Mozilla properties:
https://people-mozilla.org/~dkeeler/deployment-checker-analysis.html

Gerv
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