Amos Wrote:
The major well-known security flaw in the whole TLS/SSL system
is that any one of the Trusted CAs is capable of forging signatures on
other CAs clients.
And happens to be one that squid desperately needs to remain in order to continue ssl bumping..The major well-known security flaw in the whole TLS/SSL system
is that any one of the Trusted CAs is capable of forging signatures on
other CAs clients.
-----------
Daniel I Greenwald
Daniel I Greenwald
On Tue, Feb 3, 2015 at 7:16 PM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote:
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On 4/02/2015 7:50 a.m., Yuri Voinov wrote:
>
> Now I have:
>
> root @ cthulhu /etc/opt/csw/ssl/certs # ls -al *.pem|wc -l 210
>
> root and intermediate CA's. Most known I can found.
>
> Note: all of them was wound in different places - in addition with
> Mozilla's bundle, shipped with OpenSSL.
>
> How I can found, which is absent?
Depends on your definition of "absent". If one was being really
serious about the security the Trusted CA list would be empty.**
All the domains using DANE and TLSA DNS records? I am hoping someday
to have Squid fetch and use those instead of the Trusted CA, but that
is a while off. (hint, hint sponsorship welcome etc. and so on).
>
> And how to support this heap? In practice? Manually with CLI
> openssl? Ok, but how to identify problem URL, when Squid's load
> over 100 requests per second?
With the cert validator helper I think. Probably something custom.
** The point of the word "Trusted" in Trusted CA is that they have
passed through some difficult criteria to get listed and installed.
Just grabbing CA certs from all over the place is risking a huge
amount. The major well-known security flaw in the whole TLS/SSL system
is that any one of the Trusted CAs is capable of forging signatures on
other CAs clients. So dodgy list entries is a VERY big deal.
Amos
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