CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
49.3%
A vulnerability in the Secure Sockets Layer (SSL) Decryption and Inspection
feature of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass the SSL
policy for decrypting and inspecting traffic on an affected system.
# 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:/a:cisco:firepower_management_center";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.140272");
script_cve_id("CVE-2017-6766");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
script_version("2023-07-14T16:09:27+0000");
script_name("Cisco Firepower Management Secure Sockets Layer Policy Bypass Vulnerability");
script_xref(name:"URL", value:"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-fpw");
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 Secure Sockets Layer (SSL) Decryption and Inspection
feature of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass the SSL
policy for decrypting and inspecting traffic on an affected system.");
script_tag(name:"insight", value:"The vulnerability is due to unexpected interaction with Known Key and Decrypt
and Resign configuration settings of SSL policies when the affected software receives unexpected SSL packet
headers. An attacker could exploit this vulnerability by sending a crafted SSL packet through an affected device
in a valid SSL session.");
script_tag(name:"impact", value:"A successful exploit could allow the attacker to bypass the SSL decryption and
inspection policy for the affected system, which could allow traffic to flow through the system without being
inspected.");
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2019-10-09 23:29:00 +0000 (Wed, 09 Oct 2019)");
script_tag(name:"creation_date", value:"2017-08-03 10:19:50 +0700 (Thu, 03 Aug 2017)");
script_category(ACT_GATHER_INFO);
script_family("CISCO");
script_copyright("Copyright (C) 2017 Greenbone AG");
script_dependencies("gb_cisco_firepower_management_center_consolidation.nasl");
script_mandatory_keys("cisco/firepower_management_center/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(
'5.4.0',
'5.4.1',
'6.0.0',
'6.1.0',
'6.2.0',
'6.2.1',
'6.2.2');
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
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
49.3%