Flaws in RIPv2 packet's authentication
draft-etienne-ripv2-auth-flaws-00
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Author | Jerome Etienne | ||
| Last updated | 2001-05-01 | ||
| RFC stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
The current strongest authentication method for RIPv2 (RFC2453[6]) is the MD5 authentication (RFC2082[5]) which uses shared secret key to authenticate the packets. This memo explains the different security flaws we found in the anti-replay and the MACs calculation. The second part presents practical exploitations of these weaknesses: an attacker directly connected to a link, can (i) break neighborhood, (ii) flap routes and (iii) inject obsolete routes.
Authors
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)