Detections
Analytics

Cisco Firepower Threat Defense Software SSL Input Validation DoS (cisco-sa-ftd-ssl-mf3822Z)

high Nessus Plugin ID 142364

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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 denial of service (DoS) vulnerability in its ssl_inspection component due to insuffient user input validation. An unauthenticated, remote attacker can exploit this issue, by sending malformed TLS packets to an affected device, to impose on a DoS condition on Snort instances.

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 CSCvs28290

See Also

http://www.nessus.org/u?724078ed

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs28290

Plugin Details

Severity: High

ID: 142364

File Name: cisco-sa-ftd-ssl-mf3822Z.nasl

Version: 1.7

Type: local

Family: CISCO

Published: 11/3/2020

Updated: 3/31/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2020-3317

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: 10/21/2020

Vulnerability Publication Date: 10/21/2020

Reference Information

CVE: CVE-2020-3317

CWE: 20

CISCO-SA: cisco-sa-ftd-ssl-mf3822Z

IAVA: 2020-A-0488-S

CISCO-BUG-ID: CSCvs28290