21 Oct
2014
21 Oct
'14
8:01 a.m.
Hi all,
is it possible to add in
http://kamailio.org/docs/modules/4.2.x/modules/tls.html
under the line
9.1. |tls_method| (string)
...
...
If rfc3261 conformance is desired, TLSv1 must be used. For compatibility
with older clients SSLv23 is a good option.
*Example 1.3. Set |tls_method| parameter*
...
modparam("tls", "tls_method", "TLSv1")
...
<
!!! *a warning **that the use of SSLv3 **susceptibility to POODLE
Vulnerability* !!!
--
*Rainer Piper*
Integration engineer
Koeslinstr. 56
53123 BONN
GERMANY
Phone: +49 228 97167161
P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test)
XMPP: rainer(a)xmpp.soho-piper.de
21 Oct
21 Oct
8:13 a.m.
Am 21.10.2014 um 08:01 schrieb Rainer Piper:
Hi all,
is it possible to add in
http://kamailio.org/docs/modules/4.2.x/modules/tls.html
under the line
9.1. |tls_method| (string)
...
...
If rfc3261 conformance is desired, TLSv1 must be used. For
compatibility with older clients SSLv23 is a good option.
*Example 1.3. Set |tls_method| parameter*
...
modparam("tls", "tls_method", "TLSv1")
...
<
!!! *a warning **that the use of SSLv3 **susceptibility to POODLE
Vulnerability* !!!
--
*Rainer Piper*
Integration engineer
Koeslinstr. 56
53123 BONN
GERMANY
Phone: +49 228 97167161
P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test)
XMPP: rainer(a)xmpp.soho-piper.de
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
more informations
about SSLv3 POODLE attack
SSL 3 is dead, killed by the POODLE attack
<https://community.qualys.com/blogs/securitylabs/2014/10/15/ssl-3-is-dead-killed-by-the-poodle-attack>
Gepostet von Ivan Ristic <https://community.qualys.com/people/ivanr> in
Security Labs <https://community.qualys.com/blogs/securitylabs> am
15.10.2014 12:06:32
The POODLE Attack (CVE-2014-3566)
After more than a week of persistent rumours, yesterday (Oct 14) we
finally learned about the new SSL 3 vulnerability everyone was afraid
of. The so-called POODLE attack
<http://googleonlinesecurity.blogspot.com.au/2014/10/this-poodle-bites-exploiting-ssl-30.html>
is a problem in the CBC encryption scheme as implemented in the SSL 3
protocol. (Other protocols are not vulnerable because this area had been
strengthened in TLS 1.0.) Conceptually, the vulnerability is very
similar to the 2011 BEAST exploit. In order to successfully exploit
POODLE the attacker must be able to inject malicious JavaScript into the
victim's browser and also be able to observe and manipulate encrypted
network traffic on the wire. As far as MITM attacks go, this one is
complicated, but easier to execute than BEAST because it doesn't require
any special browser plugins. If you care to learn the details, you can
find them in the short paper
<https://www.openssl.org/%7Ebodo/ssl-poodle.pdf> or in Adam Langley's
blog post <https://www.imperialviolet.org/2014/10/14/poodle.html>.
read more at source ->
https://community.qualys.com/blogs/securitylabs/2014/10/15/ssl-3-is-dead-ki…
--
*Rainer Piper*
Integration engineer
Koeslinstr. 56
53123 BONN
GERMANY
Phone: +49 228 97167161
P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test)
XMPP: rainer(a)xmpp.soho-piper.de
8:20 a.m.
>
> !!! *a warning **that the use of SSLv3 **susceptibility to POODLE
> Vulnerability* !!!
>
Well, since Poodle requires a web browser and java script we're not in
danger from a Poodle attack. Even so, we are not enabling SSL by
default, only enabling TLS. All versions of SSL are too old to be
secure. We can not add a warning text for every possible attack,
but have published information on twitter, facebook, G+ and
on the mailing lists.
Are we aware of any phones or SIP servers that only supports SSLv3
and have no support of TLS?
/O
8:30 a.m.
Am 21.10.2014 um 08:20 schrieb Olle E Johansson:
asterisk just
published a security warning
source: http://downloads.asterisk.org/pub/security/AST-2014-011.html
you have to force asterisk to do TLSv1
the defaults settings allowing a SSLv3/SSLv2 fallback.
--
*Rainer Piper*
Integration engineer
Koeslinstr. 56
53123 BONN
GERMANY
Phone: +49 228 97167161
P2P: sip:rainer@sip.soho-piper.de:5072 (pjsip-test)
XMPP: rainer(a)xmpp.soho-piper.de
>
> !!! *a warning **that the use of SSLv3 **susceptibility to POODLE
> Vulnerability* !!!
>
Well, since Poodle requires a web browser and java script we're not in
danger from a Poodle attack. Even so, we are not enabling SSL by
default, only enabling TLS. All versions of SSL are too old to be
secure. We can not add a warning text for every possible attack,
but have published information on twitter, facebook, G+ and
on the mailing lists.
Are we aware of any phones or SIP servers that only supports SSLv3
and have no support of TLS?
/O
_______________________________________________
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8:34 a.m.
Rainer Piper skrev 2014-10-21 08:30:
Am 21.10.2014 um 08:20 schrieb Olle E Johansson:
>
>>>
>>> !!! *a warning **that the use of SSLv3 **susceptibility to POODLE
>>> Vulnerability* !!!
>>>
> Well, since Poodle requires a web browser and java script we're not in
> danger from a Poodle attack. Even so, we are not enabling SSL by
> default, only enabling TLS. All versions of SSL are too old to be
> secure. We can not add a warning text for every possible attack,
> but have published information on twitter, facebook, G+ and
> on the mailing lists.
>
> Are we aware of any phones or SIP servers that only supports SSLv3
> and have no support of TLS?
>
> /O
>
source: http://downloads.asterisk.org/pub/security/AST-2014-011.html
you have to force asterisk to do TLSv1
the defaults settings allowing a SSLv3/SSLv2 fallback.
Yes, I am aware of that (and took part in the process). It's the same as
what Kamailio does if you check the default configuration.
As a second step we will have to modify our defaults in the code (like
Asterisk).
/O
4:34 p.m.
As we had a note about sslv2 not being recommended when security is
wanted, I put the same note for sslv3. It could be useful for new comers
in the field.
Cheers,
Daniel
On 21/10/14 08:34, Olle E Johansson wrote:
Rainer Piper skrev 2014-10-21 08:30:
--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Am 21.10.2014 um 08:20 schrieb Olle E Johansson:
>
>>>
>>> !!! *a warning **that the use of SSLv3 **susceptibility to POODLE
>>> Vulnerability* !!!
>>>
> Well, since Poodle requires a web browser and java script we're not in
> danger from a Poodle attack. Even so, we are not enabling SSL by
> default, only enabling TLS. All versions of SSL are too old to be
> secure. We can not add a warning text for every possible attack,
> but have published information on twitter, facebook, G+ and
> on the mailing lists.
>
> Are we aware of any phones or SIP servers that only supports SSLv3
> and have no support of TLS?
>
> /O
>
source: http://downloads.asterisk.org/pub/security/AST-2014-011.html
you have to force asterisk to do TLSv1
the defaults settings allowing a SSLv3/SSLv2 fallback.
Yes, I am aware of that (and took part in the process). It's the same
as what Kamailio does if you check the default configuration.
As a second step we will have to modify our defaults in the code (like
Asterisk).
/O
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users 
31 Oct
31 Oct
9:43 a.m.
HI all,
Can anyone tell any phones or browser (WSS) that only supports SSLv3
and have no support of TLS?
Regards
Varghese Paul
On Tue, Oct 21, 2014 at 8:04 PM, Daniel-Constantin Mierla <miconda(a)gmail.com
wrote:
As we had a note about sslv2 not being recommended
when security is
wanted, I put the same note for sslv3. It could be useful for new comers
in the field.
Cheers,
Daniel
On 21/10/14 08:34, Olle E Johansson wrote:
Rainer Piper skrev 2014-10-21 08:30:
--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
Am 21.10.2014 um 08:20 schrieb Olle E Johansson:
>
>>>
>>> !!! *a warning **that the use of SSLv3 **susceptibility to POODLE
>>> Vulnerability* !!!
>>>
> Well, since Poodle requires a web browser and java script we're not in
> danger from a Poodle attack. Even so, we are not enabling SSL by
> default, only enabling TLS. All versions of SSL are too old to be
> secure. We can not add a warning text for every possible attack,
> but have published information on twitter, facebook, G+ and
> on the mailing lists.
>
> Are we aware of any phones or SIP servers that only supports SSLv3
> and have no support of TLS?
>
> /O
>
source: http://downloads.asterisk.org/pub/security/AST-2014-011.html
you have to force asterisk to do TLSv1
the defaults settings allowing a SSLv3/SSLv2 fallback.
Yes, I am aware of that (and took part in the process). It's the same
as what Kamailio does if you check the default configuration.
As a second step we will have to modify our defaults in the code (like
Asterisk).
/O
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
3474
days inactive
3484
days old
6 comments
4 participants
participants (4)
-
Daniel-Constantin Mierla -
Olle E Johansson -
Rainer Piper -
Varghese Paul