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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
44.1%
According to its self-reported version, Cisco IOS XE Software is affected by following vulnerability
Please see the included Cisco BIDs and Cisco Security Advisory for more information
#TRUSTED 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
#TRUST-RSA-SHA256 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
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(123791);
script_version("1.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/03");
script_cve_id("CVE-2019-1741");
script_xref(name:"CISCO-BUG-ID", value:"CSCvi77889");
script_xref(name:"CISCO-SA", value:"cisco-sa-20190327-eta-dos");
script_xref(name:"IAVA", value:"2019-A-0097-S");
script_name(english:"Cisco IOS XE Software Encrypted Traffic Analytics Denial of Service Vulnerability");
script_summary(english:"Checks the version of Cisco IOS XE Software");
script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch");
script_set_attribute(attribute:"description", value:
"According to its self-reported version, Cisco IOS XE Software is
affected by following vulnerability
- A vulnerability in the Cisco Encrypted Traffic Analytics
(ETA) feature of Cisco IOS XE Software could allow an
unauthenticated, remote attacker to cause a denial of
service (DoS) condition.The vulnerability is due to a
logic error that exists when handling a malformed
incoming packet, leading to access to an internal data
structure after it has been freed. An attacker could
exploit this vulnerability by sending crafted, malformed
IP packets to an affected device. A successful exploit
could allow the attacker to cause an affected device to
reload, resulting in a DoS condition. (CVE-2019-1741)
Please see the included Cisco BIDs and Cisco Security Advisory for
more information");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-eta-dos
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?23365f93");
script_set_attribute(attribute:"see_also", value:"http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-71135");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvi77889");
script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID
CSCvi77889");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1741");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_cwe_id(20);
script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/27");
script_set_attribute(attribute:"patch_publication_date", value:"2019/03/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/05");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios_xe");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CISCO");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("cisco_ios_xe_version.nasl");
script_require_keys("Host/Cisco/IOS-XE/Version");
exit(0);
}
include('audit.inc');
include('cisco_workarounds.inc');
include('ccf.inc');
product_info = cisco::get_product_info(name:'Cisco IOS XE Software');
version_list=make_list(
'3.2.0JA',
'16.8.1s',
'16.8.1e',
'16.8.1d',
'16.8.1c',
'16.8.1b',
'16.8.1a',
'16.8.1',
'16.7.1b',
'16.7.1a',
'16.7.1',
'16.6.3',
'16.6.2',
'16.6.1'
);
workarounds = make_list(CISCO_WORKAROUNDS['platform_software_et-analytics_interfaces']);
workaround_params = make_list();
reporting = make_array(
'port' , product_info['port'],
'severity' , SECURITY_HOLE,
'version' , product_info['version'],
'bug_id' , 'CSCvi77889',
'cmds' , make_list("show platform software et-analytics interfaces")
);
cisco::check_and_report(product_info:product_info, workarounds:workarounds, workaround_params:workaround_params, reporting:reporting, vuln_versions:version_list);
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
44.1%