SVG:Advisory-SVG-2015-9323

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Advisory-SVG-2015-9323





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EGI SVG   ADVISORY [EGI-SVG-2015-9323] 

Title:       **UPDATE** EGI SVG Advisory "Moderate" RISK - dCache  [EGI-SVG-2015-9323]

Date:        2015-08-24
Updated:     2015-09-10


URL:         https://wiki.egi.eu/wiki/SVG:Advisory-SVG-2015-9323

Introduction
============

dCache [R 1] is a data storage and retrieval system.  

A vulnerability has been found in the "gridftp door", and in the "kerberos ftp door" 

of dCache. No other component is affected.

A fixed binary version is available on the dCache site. [R 2]

Upgrading all dCache nodes that host either a gridftp or kerberos-ftp door is 

necessary and sufficient to fix the vulnerability.

**UPDATE** The fix is now also available in the EGI UMD as well as the EMI repository.


Details
=======

See the dCache page. 


Risk category
=============

This issue has been assessed as 'Moderate' risk by the EGI SVG Risk Assessment Team


Affected software
=================

All dCache versions prior to this patch are affected. 

The releases which fix this issue are are: 2.13.7, 2.12.19, 2.11.30 and 2.10.39.

It was noted by the dCache team that several site still run the unsupported 2.6 

dCache.  Given these sites currently suffer from a Moderate risk vulnerability, dCache 

have made an additional release: 2.6.51.


Mitigation
==========

N/A 


Component installation information
==================================

Updates are available on the dCache site [R 2]

Note that at present the patch is only available from the dCache site. 


The official repository for the distribution of grid middleware for EGI sites is 
repository.egi.eu which contains the EGI Unified Middleware Distribution (UMD).


The update is available in the EMI-3 repository:-- 

http://www.eu-emi.eu/releases/emi-3-monte-

bianco/updates/-/asset_publisher/5Na8/content/update-28-26-08-2015-v-3-16-1-1


Sites using the EGI UMD 3 should see:

http://repository.egi.eu/category/umd_releases/distribution/umd-3/


**Update**

http://repository.egi.eu/2015/09/10/release-umd-3-13-3/

The version of dCache which is in this release of the EGI UMD is 2.10.39.




Other Information
=================

Previously:

To give sites time to upgrade their dCache, the dCache team will not release any 

details of the vulnerability at this time.  This includes not making  public the 

source-code for the fix for a 'grace period' of two weeks, as doing so would also 

reveal information on the vulnerability.

During this two week grace period, dCache will make no further releases.

Once the grace-period elapses, all code changes will be pushed into github and dCache 

will continue normal bug-fix release cycles.

The SVG hopes that this software can be made available in the UMD before dCache 

reveals the change to the source code.  As this is 'Moderate' rather than a more 

serious vulnerability is it acceptable if the software is not in the UMD before the 

source is revealed. 

**Update**:  The fix is now in the EGI UMD.


Recommendations
===============

Sites are recommended to update nodes hosting either a gridftp door or kerberos-ftp 

door.

**Update**

Sites may wish to update now from the dCache site [R 2], or from the EGI UMD. 


Credit
======

This vulnerability was reported by Paul Millar of the dCache team. 


References
==========

[R 1] https://www.dcache.org/

[R 2] https://www.dcache.org/downloads/1.9/


Comments
========

Comments or questions should be sent to svg-rat  at  mailman.egi.eu

We are currently revising the vulnerability issue handling procedure so suggestions 

and comments are welcome. 



Timeline  
========
Yyyy-mm-dd

2015-08-18 Vulnerability reported by Paul Millar of the dCache team, 
           stating they had found and fixed vulnerability but not released the patch
2015-08-18 Acknowledgement from the EGI SVG to the reporter
2015-08-20 Assessment by the EGI Software Vulnerability Group reported to the software providers
2015-08-24 Updated packages available from dCache site - binary release only 
2015-08-24 Advisory sent to sites
2015-09-10 Update available in UMD
2015-09-10 Advisory updated.



On behalf of the EGI SVG,