Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 9 Nov 2015 13:52:55 +0000
From: Pedro Vaz De Sousa Grilo <pedrosousagrilo@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: Assign CVE for common-collections remote code
 execution on deserialisation flaw

I think it is. You can execute remote code by exploiting HTTP, RMI and JMI

On Mon, Nov 9, 2015 at 6:58 AM, Florian Weimer <fweimer@...hat.com> wrote:

> On 11/09/2015 01:36 AM, Jason Shepherd wrote:
> > Hello oss-esc,
> >
> > It was found that a flaw in Apache commons-collections Java library
> allowed remote code execution when Deserialised with Java Object
> Serialization.
>
> This is not a vulnerability in the library.  How can this feature allow
> remote code execution if it does not involve any networking at all?
>
> The root cause is the incorrect use of Java deserialization.  As long as
> you do not fix that, something else on the classpath will serve the role
> of Apache Commons Collections.
>
> Disabling InvokerTransformer deserialization may be a prudent hardening
> measure, but calling the existing behavior a vulnerability is a bit of a
> stretch.
>
> Florian
>

Powered by blists - more mailing lists

Your e-mail address:

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.