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Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Илья Шипицин
October 16, 2014 12:06AM
любопытства ради залогировали ssl_protocol, в общем SSLv3 встречается
у 0.1% пользователей, разброс операционок от WinXP до Win 8.1

причина, вероятно, в пользовательских антивирусах, которые MITM-ом
вклиниваются в TLS.
не думаю, чтобы пользователи принудительно убирали себе галочки с TLS
и оставляли только SSL

15 октября 2014 г., 19:32 пользователь Maxim Dounin
<mdounin@mdounin.ru> написал:
> Hello!
>
> On Wed, Oct 15, 2014 at 04:04:01PM +0300, Gena Makhomed wrote:
>
>> Здравствуйте, All!
>>
>> http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_protocols
>> Default: ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
>>
>> As most of you already know, there is an important SSLv3 vulnerability
>> (CVE-2014-3566 - see https://access.redhat.com/articles/1232123) ,
>> known as Poodle.
>>
>> Возможно имеет смысл изменить значение по умолчанию для директивы
>> ssl_protocols, чтобы там было только "TLSv1 TLSv1.1 TLSv1.2"
>> или даже, только "TLSv1.1 TLSv1.2" ?
>>
>> Чтобы nginx был "secure by default", прямо "из коробки".
>> А кому очень надо SSLv2 / SSLv3 / TLSv1 - смогут включить их вручную.
>
> Убирать TLSv1 - совершенно точно очень плохая идея. Это, в
> частности, отсечёт OpenSSL старее 1.0.1, что выглядит, мягко
> говоря, преждевременно.
>
> Мысль убрать SSLv3 по умолчанию носится в воздухе, но я пока не
> уверен в правильности этого действия.
>
>> И второй вопрос, поскольку SSL уже фактически не осталось,
>> может быть имеет смысл все директивы ssl_******** переименовать
>> в tls_******** ? Так чтобы одновременно поддерживались и те и другие,
>> а со временем ssl_***** стали deprecated и потом removed ?
>
> Изменение названия на TLS - это политические реверансы времён
> стандартизации. Если же посмотреть в данные, то так называемый
> TLS, так называемой версии 1.0 - это SSL версии 3.1. Так и живём.
> Бегать по этим граблям лишний раз - IMHO, малопродуктивное
> занятие, пусть остаётся как есть.
>
> --
> Maxim Dounin
> http://nginx.org/
>
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Subject Author Posted

CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Gena Makhomed October 15, 2014 09:06AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Maxim Dounin October 15, 2014 09:34AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Gena Makhomed October 15, 2014 12:08PM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Maxim Dounin October 15, 2014 01:42PM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Илья Шипицин October 16, 2014 12:08AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

mente October 16, 2014 04:16AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Maxim Dounin October 16, 2014 09:46AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Gena Makhomed October 16, 2014 03:50PM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Gena Makhomed October 16, 2014 03:18PM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Maxim Dounin October 16, 2014 04:38PM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Gena Makhomed October 17, 2014 07:36AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Maxim Dounin October 17, 2014 09:26AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Gena Makhomed October 19, 2014 12:56PM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Maxim Dounin October 20, 2014 12:16AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

mva October 20, 2014 01:28AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Илья Шипицин October 20, 2014 04:40AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Илья Шипицин October 16, 2014 12:06AM

Re[2]: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Михаил Монашёв October 16, 2014 04:06AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Илья Шипицин October 20, 2014 04:48AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Aleksandr Sytar October 16, 2014 07:36AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

igor.goncharenko October 17, 2014 03:37AM

Re: CVE-2014-3566, important SSLv3 vulnerability, known as Poodle.

Maxim Dounin October 17, 2014 09:26AM



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