[jboss-jira] [JBoss JIRA] (JGRP-2021) Prevent messages from non-members

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-2021:
---------------------------
    Description: 
Although JGroups provides message encryption ({{ENCRYPT}}) and cluster admission control ({{AUTH}}), it _does not_ prevent malicious attacks.

For example, if a rogue node creates a minimal stack without encryption or authentication, then it is possible for that member to
* Send messages to the cluster
* Capture an existing message from a cluster member P, change it (e.g. the seqno) and resend it spooking P's address
* Install a new view including itself
* Possibly install a new shared key in {{ENCRYPT}}, thereby being able to _receive_ cluster messages

The goals are therefore:
1. Prevent cluster members from delivering messages from a non-member (exceptions are join requests from new members and merge requests)
2. Prevent a non-member from receiving any cluster messages

The first goal also prevents rogue views from getting installed, or new shared secrets from being installed into {{ENCRYPT}}.

h3. Proposed solution
* Use ENCRYPT for encryption of the payload *and the headers*
* Now _every message_ carries an enrypt header

h4. 

  was:
Although JGroups provides message encryption ({{ENCRYPT}}) and cluster admission control ({{AUTH}}), it _does not_ prevent malicious attacks.

For example, if a rogue node creates a minimal stack without encryption or authentication, then it is possible for that member to
* Send messages to the cluster
* Capture an existing message from a cluster member P, change it (e.g. the seqno) and resend it spooking P's address
* Install a new view including itself
* Possibly install a new shared key in {{ENCRYPT}}, thereby being able to _receive_ cluster messages

The goals are therefore:
1. Prevent cluster members from delivering messages from a non-member (exceptions are join requests from new members and merge requests)
2. Prevent a non-member from receiving any cluster messages

The first goal also prevents rogue views from getting installed, or new shared secrets from being installed into {{ENCRYPT}}.




> Prevent messages from non-members
> ---------------------------------
>
>                 Key: JGRP-2021
>                 URL: https://issues.jboss.org/browse/JGRP-2021
>             Project: JGroups
>          Issue Type: Feature Request
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 4.0
>
>
> Although JGroups provides message encryption ({{ENCRYPT}}) and cluster admission control ({{AUTH}}), it _does not_ prevent malicious attacks.
> For example, if a rogue node creates a minimal stack without encryption or authentication, then it is possible for that member to
> * Send messages to the cluster
> * Capture an existing message from a cluster member P, change it (e.g. the seqno) and resend it spooking P's address
> * Install a new view including itself
> * Possibly install a new shared key in {{ENCRYPT}}, thereby being able to _receive_ cluster messages
> The goals are therefore:
> 1. Prevent cluster members from delivering messages from a non-member (exceptions are join requests from new members and merge requests)
> 2. Prevent a non-member from receiving any cluster messages
> The first goal also prevents rogue views from getting installed, or new shared secrets from being installed into {{ENCRYPT}}.
> h3. Proposed solution
> * Use ENCRYPT for encryption of the payload *and the headers*
> * Now _every message_ carries an enrypt header
> h4. 



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