Folks, Based on the recent discussion we have had about ICMP-based DoS attacks, we have posted an I-D which describes and suggests that network ingress filtering be applied on ICMPv4 and ICMPv6 error messages (based on the addresses of the embedded payload).
The I-D is available at: <http://www.ietf.org/internet-drafts/draft-gont-opsec-icmp-ingress-filtering-00.txt> Any feedback will be very appreciated. Thanks! Best regards, Fernando -------- Forwarded Message -------- Subject: New Version Notification for draft-gont-opsec-icmp-ingress-filtering-00.txt Date: Thu, 28 Aug 2014 10:37:47 -0700 From: [email protected] To: Will(Shucheng) Liu <[email protected]>, Jeroen Massar <[email protected]>, Ray Hunter <[email protected]>, Fernando Gont <[email protected]>, Ray Hunter <[email protected]>, Jeroen Massar <[email protected]>, Fernando Gont <[email protected]>, Shucheng LIU (Will) <[email protected]> A new version of I-D, draft-gont-opsec-icmp-ingress-filtering-00.txt has been successfully submitted by Fernando Gont and posted to the IETF repository. Name: draft-gont-opsec-icmp-ingress-filtering Revision: 00 Title: Network Ingress Filtering: Defeating Attacks which employ Forged ICMP/ ICMPv6 Error Messages Document date: 2014-08-28 Group: Individual Submission Pages: 9 URL: http://www.ietf.org/internet-drafts/draft-gont-opsec-icmp-ingress-filtering-00.txt Status: https://datatracker.ietf.org/doc/draft-gont-opsec-icmp-ingress-filtering/ Htmlized: http://tools.ietf.org/html/draft-gont-opsec-icmp-ingress-filtering-00 Abstract: Over the years, a number of attack vectors that employ forged ICMP/ ICMPv6 error messages have been disclosed and exploited in the wild. The aforementioned attack vectors do not require that the source address of the packets be forged, but do require that the addresses of the IP/IPv6 packet embedded in the ICMP/ICMPv6 payload be forged. This document discusses a simple, effective, and straightforward method for using ingress traffic filtering to mitigate attacks that use forged addresses in the IP/IPv6 packet embedded in an ICMP/ICMPv6 payload. This advice is in line with the recommendations in BCP38. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat _______________________________________________ OPSEC mailing list [email protected] https://www.ietf.org/mailman/listinfo/opsec
