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Date: Mon, 23 Jul 2012 01:13:44 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: David Jorm <djorm@...hat.com>
Subject: Re: CVE for JBOSS EAP 5.0(twiddle and jmx invocations)
?
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On 07/22/2012 11:35 PM, David Jorm wrote:
> On 07/21/2012 02:12 AM, yersinia wrote:
>> Following this apparently RFE on JBOSS
>> https://issues.jboss.org/browse/JBPAPP-3391?_sscc=t i have found
>> a nice description, and an proposed patch, about it here
>> http://objectopia.com/2009/10/01/securing-jmx-invoker-layer-in-jboss/.
>>
>>
>>
But the last link describe - apparently - a serious bug in the JBoss JMX
>> Invoker Layer, a missing authentication that can produce a
>> serious problem. Reading the other response i don't think there
>> is today the possibility to enforce a true mitigation in JBOSS,
>> apart putting in place some form a network control (aka a
>> firewall). This is for JBOSS 5.0, i know that twiddle is no
>> longer in JBoss EAP 6.0 which provides a totally new, much
>> improved, secure and scriptable management interface.
>>
>> Do you think this can require a CVE for JBOSS EAP 5?
>>
>> Thanks in advance
>>
>
> Thanks for bringing this up. As I see it, there's two issues here:
>
> 1) twiddle.sh accepting credentials as command-line arguments,
> meaning they could be exposed to another local user via a process
> listing (JBPAPP-3391)
>
> This issue affects JBoss AS 5 and EAP 5, but as you noted not AS 7
> or EAP 6. It is my opinion that this is indeed a low impact
> security flaw, and a candidate for a CVE ID. I would give it the
> following CVSSv2 score: 2.1/AV:L/AC:L/Au:N/C:P/I:N/A:N. Kurt, can
> you please assign a CVE ID for this flaw?
Please use CVE-2009-5066 for this issue.
> 2) AuthenticationInterceptor in jmx-invoker-service.xml is
> commented out by default, allowing unauthenticated access to the
> JMX Invoker
>
> This issue only affects JBoss AS community releases, not EAP or
> other supported JBoss products. The JBoss AS community releases
> prior to AS 7 opted for open by default configuration rather than
> secure by default configuration. AS 7 and all supported JBoss
> products have secure defaults applied. It is my opinion that this
> is a configuration and documentation issue rather than a security
> issue. Documentation for securing the invokers on JBoss AS
> community releases is available here:
>
> https://community.jboss.org/wiki/SecureTheInvokers
Agreed, configuration issue.
> Thanks -- David Jorm / Red Hat Security Response Team
- --
Kurt Seifried Red Hat Security Response Team (SRT)
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