CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
62.0%
A vulnerability in the DHCP client implementation of Cisco IOS XE Software
could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.
# SPDX-FileCopyrightText: 2017 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:/o:cisco:ios_xe";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.106684");
script_cve_id("CVE-2017-3864");
script_tag(name:"cvss_base", value:"7.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_version("2023-07-14T16:09:27+0000");
script_name("Cisco IOS XE Software DHCP Client Denial of Service Vulnerability");
script_xref(name:"URL", value:"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-dhcpc");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");
script_tag(name:"summary", value:"A vulnerability in the DHCP client implementation of Cisco IOS XE Software
could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.");
script_tag(name:"insight", value:"The vulnerability occurs during the parsing of a crafted DHCP packet. An
attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that is
configured as a DHCP client.");
script_tag(name:"impact", value:"A successful exploit could allow the attacker to cause a reload of an
affected device, resulting in a DoS condition.");
script_tag(name:"qod_type", value:"package");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"last_modification", value:"2023-07-14 16:09:27 +0000 (Fri, 14 Jul 2023)");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-09-04 16:49:00 +0000 (Fri, 04 Sep 2020)");
script_tag(name:"creation_date", value:"2017-03-23 09:25:06 +0700 (Thu, 23 Mar 2017)");
script_category(ACT_GATHER_INFO);
script_family("CISCO");
script_copyright("Copyright (C) 2017 Greenbone AG");
script_dependencies("gb_cisco_ios_xe_consolidation.nasl");
script_mandatory_keys("cisco/ios_xe/detected");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if (!version = get_app_version(cpe: CPE, nofork: TRUE))
exit(0);
affected = make_list(
'3.3.0SE',
'3.3.0XO',
'3.3.1SE',
'3.3.1XO',
'3.3.2SE',
'3.3.2XO',
'3.3.3SE',
'3.3.4SE',
'3.3.5SE',
'3.5.0E',
'3.5.1E',
'3.5.2E',
'3.5.3E',
'3.6.0E',
'3.6.1E',
'3.6.2E',
'3.6.2a.E',
'3.6.3E',
'3.6.4E',
'3.7.0E',
'3.7.1E',
'3.7.2E',
'3.7.3E');
foreach af (affected) {
if (version == af) {
report = report_fixed_ver(installed_version: version, fixed_version: "See advisory");
security_message(port: 0, data: report);
exit(0);
}
}
exit(99);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
62.0%