IPsec-Tools: authentication bug in racoon

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200406-17 / IPsec-Tools
Release Date	June 22, 2004
Latest Revision	May 22, 2006: 02
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-firewall/ipsec-tools	< 0.3.3	>= 0.3.3	All supported architectures

Related bugreports: #53915

Synopsis

racoon provided as part of IPsec-Tools fails do proper authentication.

2. Impact Information

Background

IPsec-Tools is a port of KAME's implementation of the IPsec utilities. It contains a collection of network monitoring tools, including racoon, ping, and ping6.

Description

The KAME IKE daemon racoon is used to authenticate peers during Phase 1 when using either preshared keys, GSS-API, or RSA signatures. When using RSA signatures racoon validates the X.509 certificate but not the RSA signature.

Impact

By sending a valid and trusted X.509 certificate and any private key an attacker could exploit this vulnerability to perform man-in-the-middle attacks and initiate unauthorized connections.

3. Resolution Information

Workaround

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version.

Resolution

All IPsec-Tools users should upgrade to the latest stable version:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=net-firewall/ipsec-tools-0.3.3"
# emerge ">=net-firewall/ipsec-tools-0.3.3"

4. References

Updated June 22, 2004

Summary: This is a Gentoo Linux Security Advisory

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