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:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
72.2%
A vulnerability in the received packet parser of Cisco
TelePresence Video Communication Server (VCS) software could allow an unauthenticated, remote
attacker to cause a reload of the affected system, resulting in 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:/a:cisco:telepresence_video_communication_server_software";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.106544");
script_version("2024-02-21T14:36:44+0000");
script_tag(name:"last_modification", value:"2024-02-21 14:36:44 +0000 (Wed, 21 Feb 2024)");
script_tag(name:"creation_date", value:"2017-01-26 11:29:25 +0700 (Thu, 26 Jan 2017)");
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_tag(name:"severity_vector", value:"CVSS:3.0/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:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
script_cve_id("CVE-2017-3790");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Cisco TelePresence VCS Denial of Service Vulnerability (cisco-sa-20170125-expressway)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2017 Greenbone AG");
script_family("CISCO");
script_dependencies("gb_cisco_vcs_consolidation.nasl");
script_mandatory_keys("cisco/vcs/detected");
script_tag(name:"summary", value:"A vulnerability in the received packet parser of Cisco
TelePresence Video Communication Server (VCS) software could allow an unauthenticated, remote
attacker to cause a reload of the affected system, resulting in a denial of service (DoS)
condition.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The vulnerability is due to insufficient size validation of
user-supplied data. An attacker could exploit this vulnerability by sending crafted H.224 data in
Real-Time Transport Protocol (RTP) packets in an H.323 call.");
script_tag(name:"impact", value:"An exploit could allow the attacker to overflow a buffer in a
cache that belongs to the received packet parser, which will result in a crash of the
application, resulting in a DoS condition.");
script_tag(name:"solution", value:"Update to version X8.8.2 or later.");
script_xref(name:"URL", value:"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-expressway");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if (!version = get_app_version(cpe: CPE, nofork: TRUE))
exit(0);
if (version_is_less(version: version, test_version: "8.8.2")) {
report = report_fixed_ver(installed_version: version, fixed_version: "8.8.2");
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:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
72.2%