10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.133 Low
EPSS
Percentile
95.6%
The remote host is affected by the vulnerability described in GLSA-200408-08 (Cfengine: RSA Authentication Heap Corruption)
Two vulnerabilities have been found in cfservd. One is a buffer overflow in the AuthenticationDialogue function and the other is a failure to check the proper return value of the ReceiveTransaction function.
Impact :
An attacker could use the buffer overflow to execute arbitrary code with the permissions of the user running cfservd, which is usually the root user. However, before such an attack could be mounted, the IP-based ACL would have to be bypassed. With the second vulnerability, an attacker could cause a denial of service attack.
Workaround :
There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of Cfengine. (It should be noted that disabling cfservd will work around this particular problem.
However, in many cases, doing so will cripple your Cfengine setup.
Upgrading is strongly recommended.)
#%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 200408-08.
#
# The advisory text is Copyright (C) 2001-2018 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(14564);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2004-1701", "CVE-2004-1702");
script_xref(name:"GLSA", value:"200408-08");
script_name(english:"GLSA-200408-08 : Cfengine: RSA Authentication Heap Corruption");
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-200408-08
(Cfengine: RSA Authentication Heap Corruption)
Two vulnerabilities have been found in cfservd. One is a buffer
overflow in the AuthenticationDialogue function and the other is a
failure to check the proper return value of the ReceiveTransaction
function.
Impact :
An attacker could use the buffer overflow to execute arbitrary code
with the permissions of the user running cfservd, which is usually the
root user. However, before such an attack could be mounted, the
IP-based ACL would have to be bypassed. With the second vulnerability,
an attacker could cause a denial of service attack.
Workaround :
There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version of Cfengine. (It should be
noted that disabling cfservd will work around this particular problem.
However, in many cases, doing so will cripple your Cfengine setup.
Upgrading is strongly recommended.)"
);
# http://www.coresecurity.com/common/showdoc.php?idx=387&idxseccion=10
script_set_attribute(
attribute:"see_also",
value:"https://www.secureauth.com/?idx=387&idxseccion=10"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200408-08"
);
script_set_attribute(
attribute:"solution",
value:
"All Cfengine users should upgrade to the latest version:
# emerge sync
# emerge -pv '>=net-misc/cfengine-2.1.8'
# emerge '>=net-misc/cfengine-2.1.8'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:cfengine");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2004/08/10");
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 and is owned by Tenable, Inc. or an Affiliate thereof.");
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");
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);
flag = 0;
if (qpkg_check(package:"net-misc/cfengine", unaffected:make_list("ge 2.1.8", "lt 2.0.0"), vulnerable:make_list("le 2.1.7"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Cfengine");
}