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Is Astaro affacted by flaw in IPTables and FTP

HenrikP
Hi.. 

Is Astaro affacted by the recently discovered bug in IPTables using FTP port ?

Security Focus advisory at : http://www.securityfocus.com/frames/?content=/templates/archive.pike%3Flist%3D1%26mid%3D177070 

/Henrik
Denmark


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  • 0
    Hi HenrikP, 

    Astaro Security Linux is affected only in a very limited range of cases (timediff between spoof attack and MiddleWare run), because we don't trust the iptables connection tracking.

    There is a extra chain (FIX_CONNTRACK (3 references)) which is called by INPUT, FORWARD and OUTPUT. FIX_CONNTRACK will be created by our MiddleWare and drops all connections from the iptables connection tracking table which have no corresponding rule in TTT_ACCEPT or USR_FORWARD. 
    So you can't spoof the connection tracking table, because there will be generated a extra drop rule (matched before the state related, established). This drop rule is active while the the connection tracking tables entry isn't timed out.
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