[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CANyjYNbtJ4feGxVMWXBL6o48jqWqc7ap+irANpa_5wV40JXmWw@mail.gmail.com>
Date: Fri, 20 Jun 2014 12:05:25 +0200
From: Ignasi Barrera <nacx@...che.org>
To: Ignasi Barrera <nacx@...che.org>
Cc: private@...ouds.apache.org, Kurt Seifried <kseifried@...hat.com>,
oss-security@...ts.openwall.com
Subject: Re: TMP flaw in rackspace jclouds?
How did you generate the patch, BTW? Did you use git format-patch?
I'm getting this error when applying it with a "git am": Patch format
detection failed
Anyway, I've been able to apply it with:
git apply --whitespace=fix
On 20 June 2014 09:03, Ignasi Barrera <nacx@...che.org> wrote:
> Thanks Andrew! I'll test your patch in a while and give feedback.
>
> El 20/06/2014 00:56, "Andrew Gaul" <gaul@...che.org> escribió:
>
>> [bcc: jclouds private list]
>>
>> I attached a patch which changes ScriptBuilder to use the "mktemp -d"
>> approach that Ignasi suggested. I verified this against the ec2 live
>> tests, specifically testCreateAndRunAService, as well as the
>> scriptbuilder unit tests. I encourage someone more familiar with
>> compute to test this since I have limited experience with those
>> services.
>>
>> The code runs on the target node as Ignasi describes and thus it poses
>> no risk to the master jclouds application. However, users could run
>> untrusted software on their target nodes and we should address this in
>> the next minor release. I estimate a low severity to this issue and
>> prefer to continue discussion on the public bug tracker. Does anyone
>> have a different understanding of this flaw?
>>
>> On Thu, Jun 19, 2014 at 09:32:25AM +0200, Ignasi Barrera wrote:
>> > Take into account that the "statement" list will be rendered to a
>> > String,
>> > composed with other script fragments into a final bash script, uploaded
>> > to
>> > a node, and executed there locally as a bash script.
>> >
>> > That code won't be executed in the machine running jclouds, but as a
>> > bash
>> > script in the provisioned node, so the name of the temporal directory
>> > should better be generated in the script itself. A good approach would
>> > be
>> > to directly use the "mktemp"command.
>> > El 19/06/2014 06:36, "Andrew Gaul" <gaul@...che.org> escribió:
>> >
>> > > Kurt, thank you for bringing this flaw to my attention and I will
>> > > address it tomorrow. I do not have a security background; can you
>> > > estimate the severity and whether we can continue discussion on the
>> > > public bug tracker? For now I have bcc the Apache jclouds private
>> > > mailing list. Also note that jclouds is an Apache project not a
>> > > Rackspace project and the canonical URLs are:
>> > >
>> > > https://github.com/jclouds/jclouds
>> > > https://issues.apache.org/jira/browse/JCLOUDS
>> > >
>> > > On Wed, Jun 18, 2014 at 08:52:59PM -0600, Kurt Seifried wrote:
>> > > > -----BEGIN PGP SIGNED MESSAGE-----
>> > > > Hash: SHA1
>> > > >
>> > > > https://github.com/rackspace/jclouds/
>> > > >
>> > > > So CC'ing Andrew, he's a consistent contributor, I can't file an
>> > > > issue
>> > > > in Github (no link to it) so posting here and CC'ing him.
>> > > >
>> > > >
>> > >
>> > > https://github.com/rackspace/jclouds/blob/master/scriptbuilder/src/main/java/org/jclouds/scriptbuilder/domain/Statements.java
>> > > >
>> > > > public static Statement extractTargzAndFlattenIntoDirectory(URI
>> > > > tgz,
>> > > > String dest) {
>> > > > return new StatementList(ImmutableSet.<Statement> builder()
>> > > > .add(exec("mkdir /tmp/$$"))
>> > > > .add(extractTargzIntoDirectory(tgz, "/tmp/$$"))
>> > > > .add(exec("mkdir -p " + dest))
>> > > > .add(exec("mv /tmp/$$/*/* " + dest))
>> > > > .add(exec("rm -rf /tmp/$$")).build());
>> > > > }
>> > > >
>> > > >
>> > > > This is insecure, $$ == PID == predictable
>> > > >
>> > > >
>> > > > http://kurt.seifried.org/2012/03/14/creating-temporary-files-securely/
>> > > >
>> > > > use java.io.File.createTempFile() ? some interesting info at
>> > > >
>> > >
>> > > http://www.veracode.com/blog/2009/01/how-boring-flaws-become-interesting/
>> > > >
>> > > > for directories there is a helpful posting at
>> > > >
>> > >
>> > > http://stackoverflow.com/questions/617414/create-a-temporary-directory-in-java
>> > > >
>> > > > Thanks.
>> > > >
>> > > >
>> > > > - --
>> > > > Kurt Seifried -- Red Hat -- Product Security -- Cloud
>> > > > PGP A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
>> > > > -----BEGIN PGP SIGNATURE-----
>> > > > Version: GnuPG v1
>> > > > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
>> > > >
>> > > > iQIcBAEBAgAGBQJTolCLAAoJEBYNRVNeJnmTrVYQAJ5glkD/0Ha5+F99Qj9ioNmm
>> > > > ZnO4G6TqKctfiqW/X02wMocKLMRV8q5WI/nvs71hCoK5HaVmbtNrV71wE0omHLjB
>> > > > smzFz6d8qZaTcOHdvgbSlWEGPjcVnESo0F3K0vgK2L/LtB5mgny6pHDn+c/cqrgt
>> > > > Er4n+U3oXlkon/ksW+drWpKOpmGOhn7c4fbE45ci6KnzDbbGpGHF0fZL3lSEfJR0
>> > > > 0D/HQzKIAJpI7VvZU8+/d/MHasndgJoAHmUCkTBYU55Vf5eYsm+xWZ1Mt46IyAap
>> > > > crMTCHHE1GVUAexYbMxy+lohHbpl+pB/d////LzesJjByRSv87r+1oLhdwank3P9
>> > > > Fz1h3sq57JyLFQIcpm4TS7xh3TaByFGCiA5G/mR+CkuS6sZEapSkviu/x7ygmOdG
>> > > > cJKM+5CogeE1P1PWsoQ41JcSwfuWAfc5IODvkjLb3MfyoXJRaKcBVdVcdHBUK4BA
>> > > > 7xcD9SbDsujxHOJLknFaO22uTtlrDS4yXJaNal6L9P7DCsSSrxG1PmmE+t5qrtYw
>> > > > HQoz+RuOMhY/2FWJqOxa7ru99rIQmxxpWgoknUlT+yYJRfoub0kpibyJLBLy2SEx
>> > > > xmdqe/i9nHCsGAworK4bEL2vLvsNBiJgdSHlzg7E5POI1tbveE12fIUmSgrgV+zO
>> > > > WjPZ/O4oOj0FVWoeyQUN
>> > > > =SUf5
>> > > > -----END PGP SIGNATURE-----
>> > >
>> > > --
>> > > Andrew Gaul
>> > > http://gaul.org/
>> > >
>>
>> --
>> Andrew Gaul
>> http://gaul.org/
Powered by blists - more mailing lists
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.
