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CVE-2019-19781 - scope of exposure

Todd Mason

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Regarding CVE-2019-19781, it's still not obvious to me after reading the various posts and alert.  Are NetScaler ADCs (version 12.0.x) with public VIPs that do NOT have or terminate http(s) or VPNs publicly vulnerable? 


That is if the NS appliance has public L4 UDP/TCP service VIPs with with appropriate ACLs for those services and the only http(s) service exposed is the Nitro interface on a private NSIP. 


Is the only exposure to this vulnerability from the Nitro interface via the NSIP?


Thank you,


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