Detections
Analytics

Cisco Firepower Threat Defense Software OSPF LSA Packets Processing DoS (cisco-sa-20191002-asa-ospf-lsa-dos)

high Nessus Plugin ID 138025

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, the Cisco Firepower Threat Defense (FTD) software installed on the remote host is affected by a vulnerability in the Open Shortest Path First (OSPF) implementation due to incorrect processing of certain OSPF packets.
An unauthenticated, adjacent attacker can exploit this by sending a series of crafted LSA type 11 OSPF packet to an affected device, causing cause a reload of the affected device, resulting in a DoS.

Please see the included Cisco BID and Cisco Security Advisory for more information and how to determine whether OSPF routing is configured.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvp49790

See Also

http://www.nessus.org/u?192e9e54

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvp49790

Plugin Details

Severity: High

ID: 138025

File Name: cisco-sa-20191002-asa-ospf-lsa-dos-ftd.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 7/1/2020

Updated: 7/3/2020

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2019-12676

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:A/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, installed_sw/Cisco Firepower Threat Defense

Exploit Ease: No known exploits are available

Patch Publication Date: 10/2/2019

Vulnerability Publication Date: 10/2/2019

Reference Information

CVE: CVE-2019-12676