Cisco Firepower Threat Defense Software Generic Routing Encapsulation Tunnel IPv6 Denial of Service Vulnerability (cisco-sa-ftd-dos-2-sS2h7aWe)

high Nessus Plugin ID 136587

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its version and configuration, the Cisco Firepower Threat Defense (FTD) Software running on the remote device is affected by a denial of service (DoS) vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature. The vulnerability is due to a memory handling error when GRE over IPv6 traffic is processed. An unauthenticated attacker could exploit this vulnerability by sending crafted GRE over IPv6 packets with either IPv4 or IPv6 payload through an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvq78828

Plugin Details

Severity: High

ID: 136587

File Name: cisco-sa-ftd-dos-2-sS2h7aWe.nasl

Version: 1.11

Type: local

Family: CISCO

Published: 5/14/2020

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-2020-3179

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:/o: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-2020-3179

CWE: 415

CISCO-SA: cisco-sa-ftd-dos-2-sS2h7aWe

IAVA: 2020-A-0205-S

CISCO-BUG-ID: CSCvq78828

Detections

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