Cisco Firepower Detection Engine Pragmatic General Multicast Protocol Decoding DoS (cisco-sa-20170419-fpsnort)

high Nessus Plugin ID 100424

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Synopsis

The packet inspection software installed on the remote host is affected by a denial of service vulnerability.

Description

According to its version, the Cisco Firepower Threat Defense (FTD) software installed on the remote host is 5.4.0.x prior to 5.4.0.10, 5.4.1.x prior to 5.4.1.9, or 6.0.1.x prior to either 6.0.1.3, 6.1.0, or 6.2.0. It is, therefore, affected by a denial of service vulnerability in the packet detection and inspection engine due to improper validation of fields in Pragmatic General Multicast (PGM) protocol packets. An unauthenticated, remote attacker can exploit this, via a specially crafted PGM protocol packet, to cause the Snort process to restart, allowing traffic inspection to be bypassed or traffic to be dropped.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCuz00876.

Plugin Details

Severity: High

ID: 100424

File Name: cisco-sa-20170419-fpsnort.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 5/25/2017

Updated: 11/13/2019

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-2016-6368

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, cpe:/a:cisco:firepower_threat_defense

Required KB Items: Settings/ParanoidReport, Host/Cisco/ASA, Host/Cisco/ASA/model

Exploit Ease: No known exploits are available

Patch Publication Date: 4/19/2017

Vulnerability Publication Date: 4/17/2017

Reference Information

CVE: CVE-2016-6368

BID: 97932

CISCO-SA: cisco-sa-20170201-fpsnort

CISCO-BUG-ID: CSCuz00876

Detections

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