Bug 36173 – apache: SSL3 protocol attack (3.2)

Bug 36173 - apache: SSL3 protocol attack (3.2)


Summary:	apache: SSL3 protocol attack (3.2)

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Security updates
Version:	UCS 3.2
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS 3.2-3-errata
Assigned To:	Janek Walkenhorst
QA Contact:	Felix Botner

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Blocks:
	Show dependency tree / graph

Reported:	2014-10-15 10:58 CEST by Moritz Muehlenhoff
Modified:	2015-03-02 09:34 CET (History)
CC List:	2 users (show)

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Description Moritz Muehlenhoff

2014-10-15 10:58:25 CEST

We should raise the minimum TLS version used by Apache to 1.0

Browsers which don't even support TLS are incompatible with the UMC and every other web application offered in the App Center.


+++ This bug was initially created as a clone of Bug #36172 +++

+++ This bug was initially created as a clone of Bug #36171 +++

+++ This bug was initially created as a clone of Bug #36170 +++

CVE-2014-3566

This will requires fixes in openssl, gnutls and nss. Firefox also needs a fix since it uses a local nss copy. (There are additional Firefox issues, so I'll file a separate bug).

http://googleonlinesecurity.blogspot.fr/2014/10/this-poodle-bites-exploiting-ssl-30.html
https://www.openssl.org/~bodo/ssl-poodle.pdf

Comment 1 Janek Walkenhorst

2014-10-16 18:27:04 CEST

Fixed.
Advisory: 2014-10-16-univention-apache.yaml

Comment 2 Janek Walkenhorst

2014-10-16 18:27:46 CEST

Tests: OK

Comment 3 Felix Botner

2014-10-17 09:48:44 CEST

OK

# SSLv2 no
-> wget --secure-protocol=SSLv2 https://10.200.7.150 --no-check-certificate
--2014-10-17 09:42:09--  https://10.200.7.150/
Abgebrochen (Speicherabzug geschrieben)

(???)

# SSLv3 no
-> wget --secure-protocol=SSLv3 https://10.200.7.150 --no-check-certificate
--2014-10-17 09:42:11--  https://10.200.7.150/
Verbindungsaufbau zu 10.200.7.150:443... verbunden.
OpenSSL: error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure
Es ist nicht möglich, eine SSL-Verbindung herzustellen.

# TLS yes
-> wget --secure-protocol=TLSv1 https://10.200.7.150 --no-check-certificate
...
2014-10-17 09:42:14 (29,5 MB/s) - »»index.html.1«« gespeichert [4412/4412]

https with firefox/chrome still works (TLS 1)

OK - YAML

Comment 4 Janek Walkenhorst

2014-10-17 10:52:28 CEST

It should be possible to override the deactivation via UCR.

Comment 5 Janek Walkenhorst

2014-10-17 13:32:40 CEST

(In reply to Janek Walkenhorst from comment #4)
> It should be possible to override the deactivation via UCR.

[apache2/ssl/v2]
Description[en]=Enables the insecure protocoll SSL 2.0 (Default: no)
Type=bool

[apache2/ssl/v3]
Description[en]=Enables the insecure protocoll SSL 3.0 (Default: no)
Type=bool

Advisory: 2014-10-16-univention-apache.yaml

Comment 6 Felix Botner

2014-10-17 14:39:06 CEST

OK

Comment 7 Janek Walkenhorst

2014-10-22 16:05:28 CEST

http://errata.univention.de/ucs/3.2/225.html