Cisco Firepower Threat Defense Software DNS Inspection DoS (cisco-sa-asaftd-dos-nJVAwOeq)

high Nessus Plugin ID 161263

Synopsis

The remote device is missing a vendor-supplied security patch

Description

A vulnerability in the DNS inspection handler of Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service condition (DoS) on an affected device. This vulnerability is due to a lack of proper processing of incoming requests. An attacker could exploit this vulnerability by sending crafted DNS requests at a high rate to an affected device. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a DoS condition.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvz76966

See Also

http://www.nessus.org/u?28fef957

https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74836

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvz76966

Plugin Details

Severity: High

ID: 161263

File Name: cisco-sa-asaftd-dos-nJVAwOeq-ftd.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 5/18/2022

Updated: 3/31/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2022-20760

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:firepower_threat_defense

Required KB Items: installed_sw/Cisco Firepower Threat Defense

Exploit Ease: No known exploits are available

Patch Publication Date: 4/27/2022

Vulnerability Publication Date: 4/27/2022

Reference Information

CVE: CVE-2022-20760

CWE: 400

CISCO-SA: cisco-sa-asaftd-dos-nJVAwOeq

IAVA: 2022-A-0185-S

CISCO-BUG-ID: CSCvz76966