question Re: Suspecious UDP traffic related to UDP 7191 CDP Agent Flood in Support Questions

Suspecious UDP traffic related to UDP 7191 CDP Agent Flood

Yasine — Tue, 15 Aug 2023 11:48:47 GMT

Hello,

After CDP deployment we observed a suspecious traffic from diffrent internet IPs to CDP Agent

port UDP 7191

After an investigation it comes from

/opt/cloudera/cm-agent/bin/flood

Please could anyone give us more details about this traffic ?

Regards

Yasine L

Re: Suspecious UDP traffic related to UDP 7191 CDP Agent Flood

steven-matison — Tue, 15 Aug 2023 11:54:49 GMT

A quick dig shows this port 7191 is for parcel distribution and internal only

Peer-to-peer parcel distribution

7190, 7191

Hosts > All Hosts > Configuration > P2P Parcel Distribution Port

Used to distribute parcels to cluster hosts during installation and upgrade operations.

Reference

https://docs.cloudera.com/cdp-private-cloud-base/7.1.6/installation/topics/cdpdc-ports-used-by-cm.html

Re: Suspecious UDP traffic related to UDP 7191 CDP Agent Flood

Yasine — Tue, 15 Aug 2023 12:41:17 GMT

So normally it should be an internal traffic, but the firewall is showing external traffic to different IPs in different countries.

Re: Suspecious UDP traffic related to UDP 7191 CDP Agent Flood

VidyaSargur — Wed, 30 Aug 2023 13:00:34 GMT

@Yasine, Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future.

Re: Suspecious UDP traffic related to UDP 7191 CDP Agent Flood

vaishaakb — Tue, 05 Sep 2023 20:57:35 GMT

Hello @Yasine Thank you for bringing this in our Community.

So normally it should be an internal traffic, but the firewall is showing external traffic to different IPs in different countries.

May I ask you to be specific and present evidences such as screenshots, tests or logs citing this issue?

Thanks

Re: Suspecious UDP traffic related to UDP 7191 CDP Agent Flood

ssummers — Sat, 14 Oct 2023 02:31:19 GMT

@vaishaakb

I noticed this same activity after deploying to the latest version of CM and after deploying parcels in my Lab cluster. I started getting P2P violations from my IDS and IPS. Is there any way to control the external p2p process?

I've gone ahead and attached screen captures from my firewall.

CDP - 7.1.9-1.cdh7.1.9.p0.44702451 - CM - 7.11.3

Example of the detection:

All 5 of my nodes repeatedly trying to talk across the globe.