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[Bug 671926] Re: Malicious servers could trigger code execution on clients using NET-RPC

To: c2c-oerpscenario@xxxxxxxxxxxxxxxxxxx
From: "Olivier Dony \(OpenERP\)" <671926@xxxxxxxxxxxxxxxxxx>
Date: Thu, 09 Dec 2010 15:40:05 -0000
Reply-to: Bug 671926 <671926@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Summary changed:

- Remote code execution
+ Malicious servers could trigger code execution on clients using NET-RPC

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https://bugs.launchpad.net/bugs/671926

Title:
  Malicious servers could trigger code execution on clients using NET-RPC

Status in OpenObject GTK Client:
  Confirmed
Status in OpenObject GTK Client 5.0 series:
  Confirmed
Status in OpenObject Web Client:
  Confirmed
Status in OpenObject Web Client 5.0 series:
  Confirmed

Bug description:
  It's possible to execute arbritrary code on client using net-rpc (pickle protocol) see http://nadiana.com/python-pickle-insecure

If you use the client to connect to some demo server and this demo server is malicious, it can send malicious code which is executed in client side.

I attach a exploit server who sends code to execute to client. Run a ls -l and redirect the output to proof_of_exploit.txt file.

This bug was fixed in the server, but not in the client.
Affects versions 4.2, 5.X and 6.X