Cisco Firepower Threat Defense Software VPN System Logging DoS (cisco-sa-ftd-dos-Rdpe34sd8)

high Nessus Plugin ID 137564

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Firepower Threat Defense Software is affected by a vulnerability in the VPN System Logging functionality due to the system memory not being properly freed for a VPN System Logging event generated when a VPN session is created or deleted. An unauthenticated, remote attacker can exploit this, by repeatedly creating or deleting a VPN tunnel connection, in order to cause unexpected system behaviors or device crashes.

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 CSCvo62077

See Also

http://www.nessus.org/u?46a52aef

http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-73830

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo62077

Plugin Details

Severity: High

ID: 137564

File Name: cisco-sa-ftd-dos-Rdpe34sd8.nasl

Version: 1.13

Type: local

Family: CISCO

Published: 6/18/2020

Updated: 3/31/2023

Configuration: Enable paranoid mode

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-2020-3189

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:/o:cisco:firepower_threat_defense

Required KB Items: Settings/ParanoidReport, installed_sw/Cisco Firepower Threat Defense, Host/Cisco/Firepower

Exploit Ease: No known exploits are available

Patch Publication Date: 5/6/2020

Vulnerability Publication Date: 5/6/2020

Reference Information

CVE: CVE-2020-3189

CWE: 400

CISCO-SA: cisco-sa-ftd-dos-Rdpe34sd8

IAVA: 2020-A-0205-S

CISCO-BUG-ID: CSCvo62077