GLSA 200404-05: ipsec-tools contains an X.509 certificates vulnerability.

http://security.gentoo.org/

Severity:	high
Title:	ipsec-tools contains an X.509 certificates vulnerability.
Date:	04/07/2004
Bugs:	#47013
ID:	200404-05

Synopsis

ipsec-tools contains a vulnerability that affects connections authenticated with X.509 certificates.

Background

From http://ipsec-tools.sourceforge.net/ :

"IPsec-Tools is a port of KAME's IPsec utilities to the Linux-2.6 IPsec implementation."

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-firewall/ipsec-tools	<= 0.2.4	>= 0.2.5	amd64

Description

racoon (a utility in the ipsec-tools package) does not verify digital signatures on Phase1 packets. This means that anybody holding the correct X.509 certificate would be able to establish a connection, even if they did not have the corresponding private key.

Impact

Since digital signatures are not verified by the racoon tool, an attacker may be able to connect to the VPN gateway and/or execute a man-in-the-middle attack.

Workaround

A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package.

Resolution

ipsec-tools users should upgrade to version 0.2.5 or later:

    # emerge sync
 
    # emerge -pv ">=net-firewall/ipsec-tools-0.2.5"
    # emerge ">=net-firewall/ipsec-tools-0.2.5"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200404-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.