CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
86.6%
The remote host is affected by the vulnerability described in GLSA-200403-08 (oftpd DoS vulnerability)
Issuing a port command with a number higher than 255 causes the server to crash. The port command may be issued before any authentication takes place, meaning the attacker does not need to know a valid username and password in order to exploit this vulnerability.
Impact :
This exploit causes a denial of service.
Workaround :
While 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 200403-08.
#
# 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(14459);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2004-0376");
script_xref(name:"GLSA", value:"200403-08");
script_name(english:"GLSA-200403-08 : oftpd 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-200403-08
(oftpd DoS vulnerability)
Issuing a port command with a number higher than 255 causes the server
to crash. The port command may be issued before any authentication
takes place, meaning the attacker does not need to know a valid
username and password in order to exploit this vulnerability.
Impact :
This exploit causes a denial of service.
Workaround :
While a workaround is not currently known for this issue, all users are
advised to upgrade to the latest version of the affected package."
);
# http://www.time-travellers.org/oftpd/
script_set_attribute(
attribute:"see_also",
value:"https://www.time-travellers.org/oftpd/"
);
# http://www.time-travellers.org/oftpd/oftpd-dos.html
script_set_attribute(
attribute:"see_also",
value:"https://www.time-travellers.org/oftpd/oftpd-dos.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200403-08"
);
script_set_attribute(
attribute:"solution",
value:
"All users should upgrade to the current version of the affected
package:
# emerge sync
# emerge -pv '>=net-ftp/oftpd-0.3.7'
# emerge '>=net-ftp/oftpd-0.3.7'"
);
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:oftpd");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2004/03/29");
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-ftp/oftpd", unaffected:make_list("ge 0.3.7"), vulnerable:make_list("le 0.3.6"))) 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-ftp/oftpd");
}