Possible security hole in racoon verified on FreeBSD using racoon-20030711

[Ralf Spenneberg]

Hi,

while testing racoon on Linux (based on the ported ipsec-tools) the
following issue appeared:
Racoon did not verify the RSA Signatures during Phase 1 in either main
or aggressive mode.
Authentication was possible using a correct certificate and a wrong
private key.

I have verified the below problem using racoon-20030711 on FreeBSD 4.9. I will test
it using the SNAP Kit but suspect it to be vulnerable, too.

Probably other implementations like racoon and MacOSX are vulnerable, too.

On Linux the issue was resolved with the attached patch.

Could you look into this?

I would like to publish a Bugtraq report after the weekend, provided that you have confirmed
that either your racoon is not vulnerable or you have patches available.

Regards,

Ralf
-- 
Ralf Spenneberg
UNIX/Linux Trainer and Consultant, RHCE, RHCX
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