topic Ip local source spoof attack on ips in Network Security

Ip local source spoof attack on ips

szamin125 — Sun, 10 Mar 2019 12:28:22 GMT

Hi Guys,

we have ip local source spooof attack on our cisco ips the signature id on ips is 1104..what will be the proper metigation for this attack...

Regards

Sher

Ip local source spoof attack on ips

praprama — Mon, 12 Sep 2011 16:22:56 GMT

Here are details of this signature:

http://tools.cisco.com/security/center/viewIpsSignature.x?signatureId=1104&signatureSubId=0&softwareVersion=6.0&releaseVersion=S2

You will want to track by using captures where the packets with a source of 127.0.0.1 are coming from (using MAC addresses).

You can use the packet display command on the sensor as well.

If there are any layer 3 hops, you will again have to capture on that layer 3 device.

regards,

Prapanch

Ip local source spoof attack on ips

szamin125 — Wed, 14 Sep 2011 06:22:32 GMT

Hi Prapanch,

the ips logs for the attack is following..i used packet dispaly command on my senson but couldnt find any any mac address ...

participants:

attacker:

addr: 127.0.0.1 locality=OUT

target:

addr: 108.122.0.0 locality=OUT

os: idSource=unknown type=unknown relevance=relevant

actions:

denyPacketRequestedNotPerformed: true

riskRatingValue: 100 targetValueRating=medium attackRelevanceRating=relevant

threatRatingValue: 100

protocol: IP protocol 0

Regards

Sher

Ip local source spoof attack on ips

praprama — Wed, 14 Sep 2011 14:22:27 GMT

Hi Sher,

You can try using the packet capture command and then copy of the captured file to an ftp server and view it using wiresark. here's the document on using the packet capture command and also explains how to copy the capture file for analysis:

http://www.cisco.com/en/US/docs/security/ips/5.0/configuration/guide/cli/clipack.html

Regards,

Prapanch