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New SSL vulnerability "Poodle" and the Userportal

maybeageek
Hi all,

I just found out about poodle and tested my UTM for it: It sure is vulnerable... and of course the Userportal is exposed. The Webadmin is not available form outside though.

As long as there is no fix from Sophos is it advisable to just disable SSLv3 in the httpd.conf under /var/sec/chroot-httpd/etc/httpd ?, i.e. make the "SSLProtocol all -SSLv2" to a "SSLProtocol all -SSLv2 -SSLv3" like on any other Apache Webserver?

All the best,

maybeageek

Poodle: Google Finds Vulnerability In SSL 3.0 Web Encryption - Slashdot
Test if a server is vulnerable: openssl s_client -connect IPofAPACHE:443 -ssl3


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  • 0 in reply to BarryG
    Hi, have you reported this to your reseller and/or Sophos?

    Barry


    No I didn't. I will make a call with my reseller and see what happens. Thanks for the tip!

    Managing several Sophos firewalls both at work and at some home locations, dedicated to continuously improve IT-security and feeling well helping others with their IT-security challenges.

  • 0
    Hi Apijnappels,

    Confirm and tested it with this and work with Chrome and IE exept Firefox.:

    (source below sophos.com)

    Logon to the shell of the UTM as root

    Type in cc to access the confd-client

    Navigate to http | tlsciphers_client$

    Now enter the following into the command line to change the ciphers:

    =ECDHE-RSA-RC4-SHA:ECDHE-ECDSA-RC4-SHA:ECDH-RSA-RC4-SHA:ECDH-ECDSA-RC4-SHA:RC4-SHA[[:P]]SK-RC4-SHA:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:ECDH-RSA-AES256-GCM-SHA384:ECDH-ECDSA-AES256-GCM-SHA384:ECDH-RSA-AES256-SHA384:ECDH-ECDSA-AES256-SHA384:ECDH-RSA-AES256-SHA:ECDH-ECDSA-AES256-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:CAMELLIA256-SHA:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDH-RSA-AES128-GCM-SHA256:ECDH-ECDSA-AES128-GCM-SHA256:ECDH-RSA-AES128-SHA256:ECDH-ECDSA-AES128-SHA256:ECDH-RSA-AES128-SHA:ECDH-ECDSA-AES128-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:CAMELLIA128-SHA

    The result displayed should look like this:
    result: 1
    ECDHE-RSA-RC4-SHA:ECDHE-ECDSA-RC4-SHA:ECDH-RSA-RC4-SHA:ECDH-ECDSA-RC4-SHA:RC4-SHA[[:P]]SK-RC4-SHA:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:ECDH-RSA-AES256-GCM-SHA384:ECDH-ECDSA-AES256-GCM-SHA384:ECDH-RSA-AES256-SHA384:ECDH-ECDSA-AES256-SHA384:ECDH-RSA-AES256-SHA:ECDH-ECDSA-AES256-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:CAMELLIA256-SHA:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDH-RSA-AES128-GCM-SHA256:ECDH-ECDSA-AES128-GCM-SHA256:ECDH-RSA-AES128-SHA256:ECDH-ECDSA-AES128-SHA256:ECDH-RSA-AES128-SHA:ECDH-ECDSA-AES128-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:CAMELLIA128-SHA



    restart the HTTP/HTTPS proxy after you have changed the ciphers:
    /var/mdw/scripts/httpproxy restart


    1 more thing, as poodletest.com describes. Firefox it self is a bit picky.

    see picture below (left FF right GC). (behind UTM 9.209-8).

  • 0
    Is the UTM vulnerable if it does not allow external access to the UserPortal or admin console, but it does reply?

    For example, if I go to the UserPortal from an external source, it gives me a "forbidden" page.  Shouldn't it just ignore the request entirely, and does the response make it vulnerable?  Kind of like drop vs reject in firewall rules.
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