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
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.8%
A vulnerability in the IPv4 fragment reassembly function of Cisco IOS XE
Software could allow an unauthenticated, remote attacker to cause an affected device to reload.
# SPDX-FileCopyrightText: 2016 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("1.3.6.1.4.1.25623.1.0.106304");
script_cve_id("CVE-2016-6386");
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("2023-07-20T05:05:17+0000");
script_name("Cisco IOS XE Software IP Fragment Reassembly Denial of Service Vulnerability");
script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-frag");
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 IPv4 fragment reassembly function of Cisco IOS XE
Software could allow an unauthenticated, remote attacker to cause an affected device to reload.");
script_tag(name:"insight", value:"The vulnerability is due to the corruption of an internal data structure
that occurs when the affected software reassembles an IPv4 packet. An attacker could exploit this vulnerability
by sending crafted IPv4 fragments to an affected device.");
script_tag(name:"impact", value:"A successful exploit could allow the attacker to cause the device to reload,
resulting in a denial of service (DoS) condition.");
script_tag(name:"qod_type", value:"package");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-09-29 12:14:00 +0000 (Tue, 29 Sep 2020)");
script_tag(name:"creation_date", value:"2016-09-29 14:49:44 +0700 (Thu, 29 Sep 2016)");
script_category(ACT_GATHER_INFO);
script_family("CISCO");
script_copyright("Copyright (C) 2016 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(
'3.2.0JA',
'3.8.0E',
'3.8.1E',
'3.8.0EX',
'3.1.3a.S',
'3.1.0S',
'3.1.1S',
'3.1.2S',
'3.1.4S',
'3.1.4a.S',
'3.1.0SG',
'3.1.1SG',
'3.2.1S',
'3.2.2S',
'3.2.0SE',
'3.2.1SE',
'3.2.2SE',
'3.2.3SE',
'3.2.0SG',
'3.2.1SG',
'3.2.2SG',
'3.2.3SG',
'3.2.4SG',
'3.2.5SG',
'3.2.6SG',
'3.2.7SG',
'3.2.8SG',
'3.2.9SG',
'3.2.10SG',
'3.2.0XO',
'3.3.0S',
'3.3.1S',
'3.3.2S',
'3.3.0SE',
'3.3.1SE',
'3.3.2SE',
'3.3.3SE',
'3.3.4SE',
'3.3.5SE',
'3.3.0SG',
'3.3.1SG',
'3.3.2SG',
'3.3.0SQ',
'3.3.1SQ',
'3.3.0XO',
'3.3.1XO',
'3.3.2XO',
'3.4.0S',
'3.4.0a.S',
'3.4.1S',
'3.4.2S',
'3.4.3S',
'3.4.4S',
'3.4.5S',
'3.4.6S',
'3.4.0SG',
'3.4.1SG',
'3.4.2SG',
'3.4.3SG',
'3.4.4SG',
'3.4.5SG',
'3.4.6SG',
'3.4.7SG',
'3.4.0SQ',
'3.4.1SQ',
'3.5.0E',
'3.5.1E',
'3.5.2E',
'3.5.3E',
'3.5.0S',
'3.5.1S',
'3.5.2S',
'3.5.1SQ',
'3.5.2SQ',
'3.5.3SQ',
'3.5.0SQ',
'3.6.4E',
'3.6.0E',
'3.6.1E',
'3.6.2a.E',
'3.6.2E',
'3.6.3E',
'3.6.0S',
'3.6.1S',
'3.6.2S',
'3.7.3E',
'3.7.1E',
'3.7.2E',
'3.7.0S',
'3.7.1S',
'3.7.2S',
'3.7.2t.S',
'3.7.3S',
'3.7.4S',
'3.7.4a.S',
'3.7.5S',
'3.7.6S',
'3.8.0S',
'3.8.1S',
'3.8.2S',
'3.9.0S',
'3.9.0a.S',
'3.9.1S',
'3.9.1a.S',
'3.9.2S',
'3.10.0S',
'3.10.1S',
'3.10.1xb.S',
'3.10.2S',
'3.10.3S',
'3.10.4S',
'3.10.5S',
'3.10.6S',
'3.10.7S',
'3.11.0S',
'3.11.1S',
'3.11.2S',
'3.11.3S',
'3.11.4S',
'3.12.0S',
'3.12.0a.S',
'3.12.1S',
'3.12.4S',
'3.12.2S',
'3.12.3S',
'3.13.2a.S',
'3.13.0S',
'3.13.0a.S',
'3.13.1S',
'3.13.2S',
'3.13.3S',
'3.13.4S',
'3.14.0S',
'3.14.1S',
'3.14.2S',
'3.14.3S',
'3.15.1c.S',
'3.15.0S',
'3.15.1S',
'3.15.2S',
'3.17.0S',
'16.1.3',
'16.1.1',
'16.1.2',
'3.16.0S',
'3.16.0c.S',
'3.16.1S',
'3.16.1a.S' );
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
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.8%