The remote host is affected by the vulnerability described in GLSA-200404-17 (ipsec-tools and iputils contain a remote DoS vulnerability)
When racoon receives an ISAKMP header, it allocates memory based on the length of the header field. Thus, an attacker may be able to cause a Denial of Services by creating a header that is large enough to consume all available system resources.
Impact :
This vulnerability may allow an attacker to remotely cause a Denial of Service.
Workaround :
A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200404-17.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(14482);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2004-0403");
script_xref(name:"GLSA", value:"200404-17");
script_name(english:"GLSA-200404-17 : ipsec-tools and iputils contain a remote DoS vulnerability");
script_summary(english:"Checks for updated package(s) in /var/db/pkg");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Gentoo host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"The remote host is affected by the vulnerability described in GLSA-200404-17
(ipsec-tools and iputils contain a remote DoS vulnerability)
When racoon receives an ISAKMP header, it allocates memory based on the
length of the header field. Thus, an attacker may be able to cause a Denial
of Services by creating a header that is large enough to consume all
available system resources.
Impact :
This vulnerability may allow an attacker to remotely cause a Denial of
Service.
Workaround :
A workaround is not currently known for this issue. All users are advised
to upgrade to the latest version of the affected package."
);
script_set_attribute(
attribute:"see_also",
value:"http://ipsec-tools.sourceforge.net/"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200404-17"
);
script_set_attribute(
attribute:"solution",
value:
"ipsec-tools users should upgrade to version 0.2.5 or later:
# emerge sync
# emerge -pv '>=net-firewall/ipsec-tools-0.3.1'
# emerge '>=net-firewall/ipsec-tools-0.3.1'
iputils users should upgrade to version 021109-r3 or later:
# emerge sync
# emerge -pv '>=net-misc/iputils-021109-r3'
# emerge '>=net-misc/iputils-021109-r3'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:ipsec-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:iputils");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2004/04/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2004/08/30");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2004-2021 Tenable Network Security, Inc.");
script_family(english:"Gentoo Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list", "Host/Gentoo/arch");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/Gentoo/arch");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(amd64|ppc|ppc64|s390)$") audit(AUDIT_ARCH_NOT, "amd64|ppc|ppc64|s390", ourarch);
flag = 0;
if (qpkg_check(package:"net-misc/iputils", arch:"ppc amd64 ppc64 s390", unaffected:make_list("eq 021109-r3"), vulnerable:make_list("eq 021109-r1"))) flag++;
if (qpkg_check(package:"net-firewall/ipsec-tools", arch:"amd64", unaffected:make_list("ge 0.3.1"), vulnerable:make_list("lt 0.3.1"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "net-misc/iputils / net-firewall/ipsec-tools");
}