4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
6.7 Medium
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
30.4%
NTPd is prone to a privilege escalation vulnerability.
# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
CPE = "cpe:/a:ntp:ntp";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.146237");
script_version("2024-02-20T05:05:48+0000");
script_tag(name:"last_modification", value:"2024-02-20 05:05:48 +0000 (Tue, 20 Feb 2024)");
script_tag(name:"creation_date", value:"2021-07-07 08:48:39 +0000 (Wed, 07 Jul 2021)");
script_tag(name:"cvss_base", value:"4.6");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:P/A:P");
script_cve_id("CVE-2005-2496");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("NTPd <= 4.2.0 Privilege Escalation Vulnerability");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("Privilege escalation");
script_dependencies("ntp_open.nasl", "gb_ntp_detect_lin.nasl");
script_mandatory_keys("ntpd/version/detected");
script_tag(name:"summary", value:"NTPd is prone to a privilege escalation vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The xntpd ntp (ntpd) daemon, when run with the -u option and
using a string to specify the group, uses the group ID of the user instead of the group, which
causes xntpd to run with different privileges than intended.");
script_tag(name:"solution", value:"See the referenced vendor advisory.");
script_xref(name:"URL", value:"https://bugs.ntp.org/show_bug.cgi?id=392");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if (isnull(port = get_app_port(cpe: CPE)))
exit(0);
if (!infos = get_app_full(cpe: CPE, port: port, exit_no_version: TRUE))
exit(0);
version = infos["version"];
location = infos["location"];
proto = infos["proto"];
if (version_is_less_equal(version: version, test_version: "4.2.0")) {
report = report_fixed_ver(installed_version: version, fixed_version: "See advisory", install_path: location);
security_message(port: port, proto: proto, data: report);
exit(0);
}
exit(99);