CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
Percentile
90.2%
The remote host is affected by the vulnerability described in GLSA-200407-05 (XFree86, X.org: XDM ignores requestPort setting)
XDM will open TCP sockets for its chooser, even if the DisplayManager.requestPort setting is set to 0. Remote clients can use this port to connect to XDM and request a login window, thus allowing access to the system.
Impact :
Authorized users may be able to login remotely to a machine running XDM, even if this option is disabled in XDM's configuration. Please note that an attacker must have a preexisting account on the machine in order to exploit this vulnerability.
Workaround :
There is no known workaround at this time. All users should upgrade to the latest available version of X.
#%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 200407-05.
#
# 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(14538);
script_version("1.18");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2004-0419");
script_xref(name:"GLSA", value:"200407-05");
script_name(english:"GLSA-200407-05 : XFree86, X.org: XDM ignores requestPort setting");
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-200407-05
(XFree86, X.org: XDM ignores requestPort setting)
XDM will open TCP sockets for its chooser, even if the
DisplayManager.requestPort setting is set to 0. Remote clients can use this
port to connect to XDM and request a login window, thus allowing access to
the system.
Impact :
Authorized users may be able to login remotely to a machine running XDM,
even if this option is disabled in XDM's configuration. Please note that an
attacker must have a preexisting account on the machine in order to exploit
this vulnerability.
Workaround :
There is no known workaround at this time. All users should upgrade to the
latest available version of X."
);
script_set_attribute(
attribute:"see_also",
value:"http://bugs.xfree86.org/show_bug.cgi?id=1376"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200407-05"
);
script_set_attribute(
attribute:"solution",
value:
"If you are using XFree86, you should run the following:
# emerge sync
# emerge -pv '>=x11-base/xfree-4.3.0-r6'
# emerge '>=x11-base/xfree-4.3.0-r6'
If you are using X.org's X11 server, you should run the following:
# emerge sync
# emerge -pv '>=x11-base/xorg-x11-6.7.0-r1'
# emerge '>=x11-base/xorg-x11-6.7.0-r1'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xfree");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xorg-x11");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2004/07/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2004/08/30");
script_set_attribute(attribute:"vuln_publication_date", value:"2004/05/30");
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");
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:"x11-base/xfree", unaffected:make_list("ge 4.3.0-r6"), vulnerable:make_list("le 4.3.0-r5"))) flag++;
if (qpkg_check(package:"x11-base/xorg-x11", unaffected:make_list("ge 6.7.0-r1"), vulnerable:make_list("le 6.7.0"))) 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, "XFree86 / X.org");
}