Cisco Firepower Threat Defense (FTD) DNS Denial of Service (cisco-sa-asaftd-ipv6-67pA658k)

high Nessus Plugin ID 137662

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Firepower Threat Defense (FTD) Software is affected by a denial of service (DoS) vulnerability in IPV6 DNS packet processing component due to insufficient validation of user-supplied input. An unauthenticated, remote attacker can exploit this issue, by sending specially crafted IPV6 DNS packets to an affected device, to cause a denial of service 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 IDs CSCvr07419.

See Also

http://www.nessus.org/u?f09a07e9

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvr07419

Plugin Details

Severity: High

ID: 137662

File Name: cisco-sa-asaftd-ipv6-67pA658k-ftd.nasl

Version: 1.9

Type: local

Family: CISCO

Published: 6/19/2020

Updated: 3/31/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-3191

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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: 5/6/2020

Vulnerability Publication Date: 5/6/2020

Reference Information

CVE: CVE-2020-3191

CISCO-SA: cisco-sa-asaftd-ipv6-67pA658k

IAVA: 2020-A-0205-S

CISCO-BUG-ID: CSCvr07419