That is what they heard the most in the past days, and we will be communicating it increasingly clearer and louder. The complete certificate data for the problematic certificates. I am not a strong supporter of key pinning either, but I do recognize its merits and the appeal to be used in advanced threat models the kinds of mobile banking, sensitive personal information, etc. Whether your CA has stopped, or has not yet stopped, issuing certificates with the problem. Similarly, I take this response to mean that Multicert will ignore the BRs for up to 60 days or longer , when convenient. In these last days we have already compiled some lessons learned and took the occasion to help and instruct our customers:.
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Certificafos Mozilla cannot force revocation on a technical level, and similarly, cannot grant exceptions to the BRs, it absolutely will maintain a public record of how well a CA handles itself in the face of an incident.
Yesterday Multicert created a new topic in mulicert. How your CA first became aware of the problem e. Correction is planned to be deployed in production on at Judging by examples – https: In reply to Ryan Sleevi from comment So there was zero progress for three months?
I must emphasize that the lack of response, combined with the failure to proactively take steps to ensure timely revocation, suggest a CA that is neither willing nor able to abide by the Baseline Requirements.
Does this lead to a safer Internet? Theferore, we intend to hold the revocations of the following certificates until Comment 14 captures that Multiecrt wants to discuss key pinning best practices on m.
Insufficient serial number entropy. Meanwhile, we have 2 particular cases of Banks that are doing certificate pinning instead of key pinning. Further to the time needed for the review, the multiceft of update by end users is typically slow. However, in multiecrt light of the feedback and necessity to abide with the requirements, it was decided to fast track the process and set July 1st as the revocation date for all certificates with this issue.
Similarly, I take this response to mean that Multicert will ignore the BRs for up to 60 cergificados or longerwhen convenient. I want to encourage you to revisit this report, using the principles outlined in Responding to an Incident Report, and make sure you are satisfied that you have addressed them.
– Camerfirma: Multicert SSL CA Insufficient serial number entropy
We are carefully evaluating scenarios for the replacement of the certificates — in the last 4 months, all of our SSL customers have gone through at least one enforced certificate replacement some of them have had 3 changes.
A timeline of the actions your CA took in response. In further releases the apps will be changed to use key pinning instead of certificate pinning. This is to avoid any unexpected outage over the weekend in case the scanning tool has some nasty bug. We were giving more time to our remaining clients to replace the certificates but in light of the recent discussions, we are accelerating our plan and by July 1st will be done entirely.
I do want to draw attention to the fact that public key pinning is also fraught with danger, in that public keys themselves may need to be rotated or revoked e.
That mulyicert what they heard the most in the past days, and we will be communicating certifiados increasingly clearer and louder. Nevertheless, I believe we can think of ways to mitigate all but the 3rd risk, if doing key pinning instead of certificate pinning.
Multicert | Cibersegurança e Certificação Digital
The issue is undetectable by lint tools and can only be found by source code inspection or statistical tests over a large population. Whether your CA has stopped, or has not yet stopped, issuing certificates with the problem. I just want to make sure I have a clear understanding of the response, for future reference.
I am not a strong supporter of key pinning either, but I do recognize its merits and the appeal to be used in advanced threat models the kinds of mobile banking, sensitive personal information, etc.
Camerfirma: Multicert SSL CA 001: Insufficient serial number entropy
Explanation about how and why the mistakes were made or bugs introduced, and how they avoided detection until mulhicert. We are attaching a CSV file to this report with the affected certificates.
Thanks for raising these risks. You need to log in before you can comment on or make changes to this bug. Can you confirm that the certificate mentioned in Comment 10 was revoked? In these last days we have already compiled some lessons learned and took the occasion to help and instruct our customers:. Reset QA Contact to default.
This bug is publicly visible.