Remote Code Execution with XStream


Hello GeoServer Team,

I'd like to report to you a remote code execution vulnerability.
I found it during a penetration test for a customer this week.

The the attached requests executes" /usr/bin/xterm" on the target

The problem is that your REST implementation is using Xstream that is configured in an insecure way.

Please let me know if you have any questions.

Thank you,




Jody Garnett
September 26, 2015, 6:38 PM

I got another report from a developer in Victoria, I will hunt down the
details on Monday with Kevin.

Have we had any reports of xstream / wps failure coming out of the release
candidate? Or just the GWC one Kevin found earlier.

Jody Garnett

On 26 September 2015 at 08:13, Andrea Aime <>


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Daniele Romagnoli
September 28, 2015, 7:26 AM

I have found these 2 in the past month:


On Sat, Sep 26, 2015 at 8:47 PM, Andrea Aime <>

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Torben Barsballe
September 28, 2015, 7:08 PM

Update on the WPS 'issue' - it was ultimately a false alarm, caused by a few different factors - turns out I have been using the wrong method of debugging GeoServer extensions for the past year or so, and it finally caused problems.

Created GEOS-7221.

Torben Barsballe
September 28, 2015, 7:27 PM

The recent comments on do not represent a blocker, the WPS issues
all seem to have been caused by poor documentation.
Created (documentation
issue, non-critical).

Tested WPS in eclipse and with 2.8-RC1; no issues.


On Mon, Sep 28, 2015 at 12:25 AM, Daniele Romagnoli <


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Andrea Aime
February 15, 2017, 11:48 AM

Mass closing all resolved issues not modified in the last 4 weeks





Matthias Kaiser



Fix versions

Affects versions