[jira] [Commented] (COUCHDB-1073) DELETE _session doesn't delete the session. Client can still get user information using GET _session and with the session cookie retrieved.

["Ian Bull (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/COUCHDB-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199417#comment-13199417 ] 

Ian Bull commented on COUCHDB-1073:
-----------------------------------

Hi everyone,

Maybe I'm mistaken, but isn't the UserCtx fetched from the /_sessions and used for things like AuthDocs?  Since the session is not actually deleted when the user logs out, you can easily "simulate" a user by sending a AuthSession=XXX in your HTTP header.  This would fetch the UserCtx from the /_sessions DB and use that for all DB actions (update documents, etc...).

If the DELETE _session actually removed this session, then one a user hits "logout" nobody could "simulate" their session.

Again, maybe I'm wrong / mistaken. I'm just getting into the details of this now.
                
> DELETE _session doesn't delete the session. Client can still get user information using GET _session and with the session cookie retrieved.
> -------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: COUCHDB-1073
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1073
>             Project: CouchDB
>          Issue Type: Improvement
>            Reporter: Johnny Weng Luu
>
> When using DELETE _session CouchDB only sends a empty session cookie back.
> But if I use the original session cookie when using GET _session I can still get the user information.
> https://gist.github.com/838996
> This could be a security flaw because when the user leaves the computer a hacker can check out the session cookie and log in to account.
> Very bad if it's a very sensitive web application like financial.
> Isn't it better to just delete the session internally in couchdb when DELETE _session is used. Then that session cookie the hacker gets won't matter because the session is already gone.

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