This script is Copyright (C) 2005-2015 Tenable Network Security, Inc.
The remote Gentoo host is missing one or more security-related
The remote host is affected by the vulnerability described in GLSA-200507-20
(Shorewall: Security policy bypass)
Shorewall fails to enforce security policies if configured with
'MACLIST_DISPOSITION' set to 'ACCEPT' or 'MACLIST_TTL' set to a value
greater or equal to 0.
A client authenticated by MAC address filtering could bypass all
security policies, possibly allowing him to gain access to restricted
services. The default installation has MACLIST_DISPOSITION=REJECT and
MACLIST_TTL=(blank) (equivalent to 0). This can be checked by looking
at the settings in /etc/shorewall/shorewall.conf
Set 'MACLIST_TTL' to '0' and 'MACLIST_DISPOSITION' to 'REJECT' in the
Shorewall configuration file (usually /etc/shorewall/shorewall.conf).
See also :
All Shorewall users should upgrade to the latest available version:
# emerge --sync
# emerge --ask --oneshot --verbose net-firewall/shorewall
Risk factor :
High / CVSS Base Score : 7.5