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Title : Flaws in RIPv2 packet's authentication
Author(s) : J. Etienne
Filename : draft-etienne-ripv2-auth-flaws-00.txt
Pages : 13
Date : 01-May-01
The current strongest authentication method for RIPv2 (RFC2453)
is the MD5 authentication (RFC2082) 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
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